Bump build number

.gitignore

@@ -2,3 +2,4 @@ DerivedData/
 .DerivedData/
 .DS_Store
 xcuserdata/
+/research/

AppStoreImages/iOS/iPhone Export/appconnect-screenshots.json

@@ -0,0 +1,220 @@
+{
+  "forceMultiLine" : true,
+  "screenshots" : [
+    {
+      "baseText" : "Quick Transfer to Android & more.",
+      "color" : {
+        "alpha" : 1,
+        "blue" : 0.19851559400558472,
+        "green" : 0.19851559400558472,
+        "red" : 0.19851559400558472
+      },
+      "fileName" : "1.png",
+      "fontSize" : 107,
+      "key" : "1",
+      "localizations" : {
+        "ar-SA" : "نقل سريع إلى أندرويد والمزيد.",
+        "ca" : "Transferència ràpida a Android i més.",
+        "cs" : "Rychlý přenos na Android i jinam.",
+        "da" : "Hurtig filoverførsel til Android m.m.",
+        "de-DE" : "Schneller Transfer zu Android & mehr.",
+        "el" : "Γρήγορη μεταφορά σε Android και άλλα.",
+        "en-AU" : "Quick Transfer to Android & more.",
+        "en-CA" : "Quick Transfer to Android & more.",
+        "en-GB" : "Quick Transfer to Android & more.",
+        "es-ES" : "Transferencia rápida a Android y más.",
+        "es-MX" : "Transferencia rápida a Android y más.",
+        "fi" : "Nopea tiedostonsiirto Androidille ym.",
+        "fr-CA" : "Transfert rapide vers Android+.",
+        "fr-FR" : "Transfert rapide vers Android+.",
+        "he" : "העברת קבצים מהירה לאנדרואיד ועוד.",
+        "hi" : "एंड्रॉइड आदि पर तेज़ फ़ाइल ट्रांसफर।",
+        "hr" : "Brz prijenos na Android i više.",
+        "hu" : "Gyors fájlátvitel Androidra és másra.",
+        "id" : "Transfer cepat ke Android & lainnya.",
+        "it" : "Trasferisci file su Android e altro.",
+        "ja" : "Android などへのファイルを素早く転送。",
+        "ko" : "Android 등으로 빠른 파일 전송.",
+        "ms" : "Pindahan pantas ke Android+.",
+        "nl-NL" : "Snel bestanden naar Android en meer.",
+        "no" : "Rask overføring til Android og mer.",
+        "pl" : "Szybki transfer na Androida i więcej.",
+        "pt-BR" : "Transfer rápido para Android e mais.",
+        "pt-PT" : "Transfer rápido para Android e mais.",
+        "ro" : "Transfer rapid la Android și altele.",
+        "ru" : "Передача на Android и не только.",
+        "sk" : "Rýchly prenos na Android aj inde.",
+        "sv" : "Snabb överföring till Android m.m.",
+        "th" : "ถ่ายโอนไฟล์เร็วไปยัง Android และอื่นๆ",
+        "tr" : "Android'e hızlı aktarım ve fazlası.",
+        "uk" : "Передача на Android і не тільки.",
+        "vi" : "Chuyển nhanh sang Android và hơn nữa.",
+        "zh-Hans" : "快速文件传输到安卓及更多设备。",
+        "zh-Hant" : "快速檔案傳輸到 Android 及更多裝置。"
+      },
+      "yOffset" : 253
+    },
+    {
+      "baseText" : "Browse & manage received files.",
+      "color" : {
+        "alpha" : 1,
+        "blue" : 0.19851559400558472,
+        "green" : 0.19851559400558472,
+        "red" : 0.19851559400558472
+      },
+      "fileName" : "2.png",
+      "fontSize" : 107,
+      "key" : "2",
+      "localizations" : {
+        "ar-SA" : "تصفح وأدر الملفات المستلمة.",
+        "ca" : "Navega i gestiona els fitxers rebuts.",
+        "cs" : "Přijaté soubory.",
+        "da" : "Se og administrer modtagne filer.",
+        "de-DE" : "Empfangene Dateien ansehen & ordnen.",
+        "el" : "Δες και διαχειρίσου ληφθέντα αρχεία.",
+        "en-AU" : "Browse & manage received files.",
+        "en-CA" : "Browse & manage received files.",
+        "en-GB" : "Browse & manage received files.",
+        "es-ES" : "Archivos recibidos: ver y gestionar.",
+        "es-MX" : "Archivos recibidos: ver y gestionar.",
+        "fi" : "Selaa ja hallitse saatuja tiedostoja.",
+        "fr-CA" : "Parcourez et gérez vos fichiers.",
+        "fr-FR" : "Parcourez et gérez vos fichiers.",
+        "he" : "עיין ונהל קבצים שהתקבלו.",
+        "hi" : "प्राप्त फ़ाइलें देखें व संभालें।",
+        "hr" : "Primljene datoteke.",
+        "hu" : "Fogadott fájlok.",
+        "id" : "Jelajahi & kelola file yang diterima.",
+        "it" : "Sfoglia e gestisci i file ricevuti.",
+        "ja" : "受信ファイルを閲覧＆管理",
+        "ko" : "받은 파일을 찾아보고 관리하세요.",
+        "ms" : "Semak & urus fail diterima.",
+        "nl-NL" : "Beheer ontvangen bestanden.",
+        "no" : "Se og administrer mottatte filer.",
+        "pl" : "Odebrane pliki: przegląd i obsługa.",
+        "pt-BR" : "Veja e gerencie arquivos recebidos.",
+        "pt-PT" : "Gere ficheiros recebidos.",
+        "ro" : "Fișiere primite: vezi și gestionează.",
+        "ru" : "Полученные файлы: обзор и управление.",
+        "sk" : "Prehliadaj a spravuj prijaté súbory.",
+        "sv" : "Bläddra och hantera mottagna filer.",
+        "th" : "เรียกดูและจัดการไฟล์ที่ได้รับ",
+        "tr" : "Alınan dosyalara göz atın ve yönetin.",
+        "uk" : "Отримані файли.",
+        "vi" : "Duyệt và quản lý các tệp đã nhận.",
+        "zh-Hans" : "浏览和管理收到的文件。",
+        "zh-Hant" : "瀏覽並管理已接收的檔案。"
+      },
+      "yOffset" : 253
+    },
+    {
+      "baseText" : "Share files right from your apps.",
+      "color" : {
+        "alpha" : 1,
+        "blue" : 0.19851559400558472,
+        "green" : 0.19851559400558472,
+        "red" : 0.19851559400558472
+      },
+      "fileName" : "3.png",
+      "fontSize" : 107,
+      "key" : "3",
+      "localizations" : {
+        "ar-SA" : "شارك الملفات مباشرة من تطبيقاتك.",
+        "ca" : "Comparteix fitxers des de les apps.",
+        "cs" : "Sdílejte soubory přímo z aplikací.",
+        "da" : "Del filer direkte fra dine apps.",
+        "de-DE" : "Teile Dateien direkt aus deinen Apps.",
+        "el" : "Μοιράσου αρχεία από τις εφαρμογές.",
+        "en-AU" : "Share files right from your apps.",
+        "en-CA" : "Share files right from your apps.",
+        "en-GB" : "Share files right from your apps.",
+        "es-ES" : "Comparte archivos desde tus apps.",
+        "es-MX" : "Comparte archivos desde tus apps.",
+        "fi" : "Jaa tiedostoja sovelluksistasi.",
+        "fr-CA" : "Partagez des fichiers via vos apps.",
+        "fr-FR" : "Partagez des fichiers via vos apps.",
+        "he" : "שתף קבצים ישירות מהאפליקציות שלך.",
+        "hi" : "अपने ऐप्स से सीधे फ़ाइलें साझा करें।",
+        "hr" : "Dijeli datoteke iz svojih aplikacija.",
+        "hu" : "Ossz meg fájlokat az appjaidból.",
+        "id" : "Bagikan file dari aplikasimu.",
+        "it" : "Condividi file dalle tue app.",
+        "ja" : "アプリから直接ファイルを共有できます。",
+        "ko" : "앱에서 바로 파일을 공유하세요.",
+        "ms" : "Kongsi fail terus dari aplikasi anda.",
+        "nl-NL" : "Deel bestanden direct vanuit je apps.",
+        "no" : "Del filer direkte fra appene dine.",
+        "pl" : "Udostępniaj pliki z aplikacji.",
+        "pt-BR" : "Compartilhe arquivos direto dos apps.",
+        "pt-PT" : "Partilha ficheiros das tuas apps.",
+        "ro" : "Partajează fișiere din aplicații.",
+        "ru" : "Делитесь файлами из приложений.",
+        "sk" : "Zdieľaj súbory zo svojich aplikácií.",
+        "sv" : "Dela filer direkt från dina appar.",
+        "th" : "แชร์ไฟล์ได้โดยตรงจากแอปของคุณ",
+        "tr" : "Uygulamalardan paylaş.",
+        "uk" : "Діліться файлами прямо з додатків.",
+        "vi" : "Chia sẻ tệp ngay từ ứng dụng của bạn.",
+        "zh-Hans" : "直接从你的应用中分享文件。",
+        "zh-Hant" : "直接從你的應用程式分享檔案。"
+      },
+      "yOffset" : 253
+    },
+    {
+      "baseText" : "Ultra-fast transfer over Wi-Fi.",
+      "color" : {
+        "alpha" : 1,
+        "blue" : 0.19851559400558472,
+        "green" : 0.19851559400558472,
+        "red" : 0.19851559400558472
+      },
+      "fileName" : "4.png",
+      "fontSize" : 107,
+      "key" : "4",
+      "localizations" : {
+        "ar-SA" : "نقل فائق السرعة عبر الواي فاي.",
+        "ca" : "Transferència Wi-Fi ultraràpida.",
+        "cs" : "Ultra-rychlý přenos přes Wi-Fi.",
+        "da" : "Ultrahurtig overførsel via Wi-Fi.",
+        "de-DE" : "Ultraschneller Transfer über WLAN.",
+        "el" : "Ταχύτατη μεταφορά Wi-Fi.",
+        "en-AU" : "Ultra-fast transfer over Wi-Fi.",
+        "en-CA" : "Ultra-fast transfer over Wi-Fi.",
+        "en-GB" : "Ultra-fast transfer over Wi-Fi.",
+        "es-ES" : "Transfiere rápido por Wi-Fi.",
+        "es-MX" : "Transfiere rápido por Wi-Fi.",
+        "fi" : "Huippunopea siirto Wi-Fillä.",
+        "fr-CA" : "Transfert Wi-Fi ultra-rapide.",
+        "fr-FR" : "Transfert Wi-Fi ultra-rapide.",
+        "he" : "העברה מהירה במיוחד דרך Wi-Fi.",
+        "hi" : "Wi-Fi पर अल्ट्रा-फास्ट ट्रांसफर।",
+        "hr" : "Ultra-brz prijenos putem Wi-Fi-ja.",
+        "hu" : "Ultragyors átvitel Wi-Fin.",
+        "id" : "Transfer ultra-cepat melalui Wi-Fi.",
+        "it" : "Transfer rapido via Wi-Fi.",
+        "ja" : "Wi-Fi経由で超高速転送。",
+        "ko" : "Wi-Fi를 통한 초고속 전송.",
+        "ms" : "Pindahan ultra-pantas melalui Wi-Fi.",
+        "nl-NL" : "Ultrasnelle overdracht via Wi-Fi.",
+        "no" : "Ultrarask overføring over Wi-Fi.",
+        "pl" : "Błyskawiczny transfer przez Wi-Fi.",
+        "pt-BR" : "Transfira muito rápido via Wi-Fi.",
+        "pt-PT" : "Transfere muito rápido por Wi-Fi.",
+        "ro" : "Transfer ultra-rapid prin Wi-Fi.",
+        "ru" : "Быстрая передача Wi-Fi.",
+        "sk" : "Ultra-rýchly prenos cez Wi-Fi.",
+        "sv" : "Ultrasnabb överföring via Wi-Fi.",
+        "th" : "ถ่ายโอนด้วยความเร็วสูงผ่าน Wi-Fi",
+        "tr" : "Wi-Fi ile ultra hızlı transfer.",
+        "uk" : "Надшвидка передача через Wi-Fi.",
+        "vi" : "Chuyển siêu nhanh qua Wi-Fi.",
+        "zh-Hans" : "超快的 Wi-Fi 传输。",
+        "zh-Hant" : "超快速 Wi-Fi 傳輸。"
+      },
+      "yOffset" : 253
+    }
+  ],
+  "sourceLocale" : "en-US",
+  "syncSettings" : true,
+  "version" : 2
+}

NearbyShare/Connection/InboundNearbyConnection.swift

@@ -30,11 +30,13 @@ class InboundNearbyConnection: NearbyConnection {
     private var textPayloadID: Int64 = 0
     private var bytesToBeTransferred: Int64 = 0
     private var isAuthenticated = false
+    private var receiverAuthenticationAccepted = false
     private var peerCertificate: Sharing_Nearby_PublicCertificate? = nil
     private var mirroredNotificationMetadata: Sharing_Nearby_MirroredNotificationMetadata?
     private var pairingMetadata: Sharing_Nearby_PairingMetadata?
     private var isPairingSetupRequest = false
     var isPlainTextTransfer = false
+    var isClipboardSyncTransfer = false
     var isControlTransfer = false
     
     var wasUserRejected = false
@@ -279,11 +281,22 @@ class InboundNearbyConnection: NearbyConnection {
             if let urlStr = String(data: payload, encoding: .utf8) {
                 
                 if isPlainTextTransfer {
+                    #if os(macOS) && !EXTENSION
+                    ClipboardSyncCoordinator.shared.suppressNextClipboardSync(for: urlStr)
+                    #endif
                     #if os(macOS)
                     // macOS clipboard
                     let pasteboard = NSPasteboard.general
                     pasteboard.clearContents()
                     pasteboard.setString(urlStr, forType: .string)
+                    #if !EXTENSION
+                    if isClipboardSyncTransfer {
+                        ClipboardSyncNotificationPresenter.shared.present(
+                            clipboardText: urlStr,
+                            senderDeviceName: remoteDeviceInfo?.name
+                        )
+                    }
+                    #endif
                     #elseif os(iOS)
                     // iOS clipboard
                     UIPasteboard.general.string = urlStr
@@ -567,6 +580,7 @@ class InboundNearbyConnection: NearbyConnection {
     
     private func processPairedKeyResultFrame(_ frame: Sharing_Nearby_Frame) throws {
         guard frame.hasV1, frame.v1.hasPairedKeyResult else { throw NearbyError.requiredFieldMissing("shareNearbyFrame.v1.pairedKeyResult") }
+        receiverAuthenticationAccepted = frame.v1.pairedKeyResult.status == .success
         currentState = .receivedPairedKeyResult
     }
     
@@ -664,6 +678,8 @@ class InboundNearbyConnection: NearbyConnection {
                     return
                 }
 
+                // Existing trust only proves this is the same device key we trusted before.
+                // It does not by itself grant a new feature, such as clipboard sync.
                 let trustedData = TrustStore.shared.findTrustedKey(for: peerCertificate.secretID)
                 if let trustedData {
                     guard let currentData = try? peerCertificate.serializedData(),
@@ -671,13 +687,10 @@ class InboundNearbyConnection: NearbyConnection {
                         self.rejectTransfer(with: .reject)
                         return
                     }
-                    DispatchQueue.main.async {
-                        self.delegate?.notificationSyncSetupConfirmed(connection: self)
-                    }
-                    submitUserConsent(accepted: true, trustDevice: false)
-                    return
                 }
 
+                // The QR token proves the user accepted this specific pairing use case.
+                // Require it even for already-trusted devices before adding a new grant.
                 let matches = TrustStore.shared.confirmPendingPairingTrust(
                     secretIdHex: peerCertificate.secretID.hex,
                     useCase: pairingUseCase,
@@ -689,9 +702,19 @@ class InboundNearbyConnection: NearbyConnection {
                     return
                 }
 
-                TrustStore.shared.addTrusted(certificate: peerCertificate, device: device)
+                // Preserve the existing trusted certificate when present; otherwise store
+                // the newly paired device and attach the confirmed use-case grant.
+                if trustedData != nil {
+                    TrustStore.shared.grantUseCase(pairingUseCase, for: peerCertificate.secretID.hex)
+                } else {
+                    TrustStore.shared.addTrusted(
+                        certificate: peerCertificate,
+                        device: device,
+                        grantedUseCases: [pairingUseCase]
+                    )
+                }
                 DispatchQueue.main.async {
-                    self.delegate?.notificationSyncSetupConfirmed(connection: self)
+                    self.delegate?.pairingSetupConfirmed(connection: self)
                 }
                 submitUserConsent(accepted: true, trustDevice: false)
                 return
@@ -724,8 +747,32 @@ class InboundNearbyConnection: NearbyConnection {
         if let textMetadata = frame.v1.introduction.textMetadata.first {
             let isURL = textMetadata.type == .url
             textPayloadID = textMetadata.payloadID
+            let isRemoteCopy = frame.v1.introduction.hasUseCase
+                && frame.v1.introduction.useCase == .remoteCopy
+            if isRemoteCopy && !isURL {
+                let peerFingerprint = peerCertificate?.secretID.hex
+                let isClipboardSyncAllowed = isAuthenticated
+                    && receiverAuthenticationAccepted
+                    && TrustStore.shared.hasUseCaseGrant(.clipboardSync, for: peerFingerprint)
+                guard isClipboardSyncAllowed else {
+                    log("[InboundNearbyConnection \(self.id)] Rejecting clipboard sync transfer because the sender is not trusted for clipboard sync.")
+                    self.rejectTransfer(with: .reject, markAsUserRejected: false)
+                    return
+                }
+                isClipboardSyncTransfer = true
+            } else {
+                isClipboardSyncTransfer = false
+            }
 
-            let metadata = TransferMetadata(files: [], id: id, pinCode: pinCode, textDescription: textMetadata.textTitle, transferType: isURL ? .url : .text, allowsToBeAddedAsTrustedDevice: self.peerCertificate != nil)
+            let metadata = TransferMetadata(
+                files: [],
+                id: id,
+                pinCode: pinCode,
+                textDescription: textMetadata.textTitle,
+                transferType: isURL ? .url : .text,
+                allowsToBeAddedAsTrustedDevice: self.peerCertificate != nil,
+                isClipboardSync: isClipboardSyncTransfer
+            )
 
             if !isURL {
                 isPlainTextTransfer = true
@@ -774,7 +821,6 @@ class InboundNearbyConnection: NearbyConnection {
            let pairingUseCase = PairingUseCase(protoValue: pairingMetadata.useCase) {
             let secretIdHex = peerCertificate.secretID.hex
             if accepted {
-                if TrustStore.shared.findTrustedKey(for: peerCertificate.secretID) == nil {
                 if let token = pairingToken {
                     TrustStore.shared.registerPendingPairingTrust(
                         secretIdHex: secretIdHex,
@@ -785,7 +831,6 @@ class InboundNearbyConnection: NearbyConnection {
                     log("[InboundNearbyConnection \(self.id)] Missing pairing token; pending trust not registered.")
                     TrustStore.shared.clearPendingPairingTrust(secretIdHex: secretIdHex)
                 }
-                }
             } else {
                 TrustStore.shared.clearPendingPairingTrust(secretIdHex: secretIdHex)
             }
@@ -873,7 +918,9 @@ class InboundNearbyConnection: NearbyConnection {
         switch useCase {
         case .notificationSync:
             return .notificationSync
-        case .clipboardSync, .none:
+        case .clipboardSync:
+            return .clipboardSync
+        case .none:
             return nil
         }
     }

NearbyShare/Connection/NearbyBonjourServiceResolver.swift

@@ -0,0 +1,237 @@
+//
+//  NearbyBonjourServiceResolver.swift
+//  QuickDrop
+//
+//  Created by Leon Böttger on 19.05.26.
+//
+
+import Darwin
+import Foundation
+import Network
+
+struct NearbyResolvedBonjourEndpoint {
+    let endpoint: NWEndpoint
+    /// Numeric host string; IPv6 link-local hosts may include a `%scopeID` suffix for NWEndpoint routing.
+    let host: String
+    let port: UInt16
+    let interface: NWInterface?
+    let description: String
+    let isIPv4: Bool
+    let isLinkLocal: Bool
+}
+
+
+final class NearbyBonjourServiceResolver: NSObject, NetServiceDelegate {
+    private static let defaultWatchdogGracePeriod: TimeInterval = 0.5
+
+    private let service: NetService
+    private let resolveTimeout: TimeInterval
+    private let watchdogGracePeriod: TimeInterval
+    private let interface: NWInterface?
+    private var timeoutWorkItem: DispatchWorkItem?
+    private var completion: (([NearbyResolvedBonjourEndpoint]) -> Void)?
+    private var finished = false
+
+    init?(
+        result: NWBrowser.Result,
+        resolveTimeout: TimeInterval,
+        watchdogGracePeriod: TimeInterval = defaultWatchdogGracePeriod,
+        completion: @escaping ([NearbyResolvedBonjourEndpoint]) -> Void
+    ) {
+        guard let components = Self.serviceEndpointComponents(from: result) else {
+            return nil
+        }
+
+        self.service = NetService(
+            domain: Self.normalizedServiceDomain(components.domain),
+            type: Self.normalizedServiceType(components.type),
+            name: components.name
+        )
+        self.resolveTimeout = resolveTimeout
+        self.watchdogGracePeriod = watchdogGracePeriod
+        self.interface = components.interface
+        self.completion = completion
+        super.init()
+    }
+
+
+    private static func serviceEndpointComponents(
+        from result: NWBrowser.Result
+    ) -> (name: String, type: String, domain: String, interface: NWInterface?)? {
+        guard case let NWEndpoint.service(name: name, type: type, domain: domain, interface: interface) = result.endpoint else {
+            return nil
+        }
+
+        return (name: name, type: type, domain: domain, interface: interface)
+    }
+
+
+    func start() {
+        service.delegate = self
+        service.resolve(withTimeout: resolveTimeout)
+
+        let timeoutWorkItem = DispatchWorkItem { [weak self] in
+            self?.finish(endpoints: [])
+        }
+        self.timeoutWorkItem = timeoutWorkItem
+        DispatchQueue.main.asyncAfter(deadline: .now() + resolveTimeout + watchdogGracePeriod, execute: timeoutWorkItem)
+    }
+
+
+    func cancel() {
+        finish(endpoints: [], notify: false)
+    }
+
+
+    func netServiceDidResolveAddress(_ sender: NetService) {
+        finish(endpoints: Self.resolvedEndpoints(from: sender, interface: interface))
+    }
+
+
+    func netService(_ sender: NetService, didNotResolve errorDict: [String: NSNumber]) {
+        finish(endpoints: [])
+    }
+
+
+    private func finish(endpoints: [NearbyResolvedBonjourEndpoint], notify: Bool = true) {
+        guard !finished else { return }
+        finished = true
+        timeoutWorkItem?.cancel()
+        service.stop()
+        service.delegate = nil
+
+        let completion = completion
+        self.completion = nil
+
+        if notify {
+            DispatchQueue.main.async {
+                completion?(endpoints)
+            }
+        }
+    }
+
+
+    private static func resolvedEndpoints(
+        from service: NetService,
+        interface: NWInterface?
+    ) -> [NearbyResolvedBonjourEndpoint] {
+        let endpoints = (service.addresses ?? [])
+            .compactMap { resolvedEndpoint(from: $0, interface: interface) }
+
+        var seenDescriptions = Set<String>()
+        let uniqueEndpoints = endpoints.filter { endpoint in
+            seenDescriptions.insert(endpoint.description).inserted
+        }
+
+        return uniqueEndpoints.sorted { lhs, rhs in
+            if lhs.isIPv4 != rhs.isIPv4 {
+                return lhs.isIPv4
+            }
+            if lhs.isLinkLocal != rhs.isLinkLocal {
+                return !lhs.isLinkLocal
+            }
+            return lhs.description < rhs.description
+        }
+    }
+
+
+    private static func resolvedEndpoint(
+        from addressData: Data,
+        interface: NWInterface?
+    ) -> NearbyResolvedBonjourEndpoint? {
+        addressData.withUnsafeBytes { rawBuffer in
+            guard let baseAddress = rawBuffer.baseAddress else { return nil }
+
+            let sockaddrPointer = baseAddress.assumingMemoryBound(to: sockaddr.self)
+            let addressFamily = Int32(sockaddrPointer.pointee.sa_family)
+
+            guard addressFamily == AF_INET || addressFamily == AF_INET6 else {
+                return nil
+            }
+
+            var hostBuffer = [CChar](repeating: 0, count: Int(NI_MAXHOST))
+            var portBuffer = [CChar](repeating: 0, count: Int(NI_MAXSERV))
+            let result = getnameinfo(
+                sockaddrPointer,
+                socklen_t(addressData.count),
+                &hostBuffer,
+                socklen_t(hostBuffer.count),
+                &portBuffer,
+                socklen_t(portBuffer.count),
+                NI_NUMERICHOST | NI_NUMERICSERV
+            )
+
+            guard result == 0 else { return nil }
+
+            var host = String(cString: hostBuffer)
+            if addressFamily == AF_INET6 {
+                host = scopedIPv6Host(host, addressData: addressData)
+            }
+
+            guard let portRawValue = UInt16(String(cString: portBuffer)),
+                  let port = NWEndpoint.Port(rawValue: portRawValue) else {
+                return nil
+            }
+
+            let endpoint = NWEndpoint.hostPort(host: NWEndpoint.Host(host), port: port)
+            let description: String
+            if addressFamily == AF_INET6 {
+                description = "[\(host)]:\(portRawValue)"
+            } else {
+                description = "\(host):\(portRawValue)"
+            }
+
+            let isIPv6LinkLocal = addressFamily == AF_INET6 && host.lowercased().hasPrefix("fe80:")
+
+            return NearbyResolvedBonjourEndpoint(
+                endpoint: endpoint,
+                host: host,
+                port: portRawValue,
+                interface: isIPv6LinkLocal ? interface : nil,
+                description: description,
+                isIPv4: addressFamily == AF_INET,
+                isLinkLocal: isIPv6LinkLocal
+            )
+        }
+    }
+
+
+    private static func scopedIPv6Host(
+        _ host: String,
+        addressData: Data
+    ) -> String {
+        guard !host.contains("%"),
+              host.lowercased().hasPrefix("fe80:") else {
+            return host
+        }
+
+        guard let scopeID = ipv6ScopeID(from: addressData), scopeID != 0 else {
+            return host
+        }
+
+        return "\(host)%\(scopeID)"
+    }
+
+
+    private static func ipv6ScopeID(from addressData: Data) -> UInt32? {
+        addressData.withUnsafeBytes { rawBuffer in
+            guard let baseAddress = rawBuffer.baseAddress else { return nil }
+            let sockaddrPointer = baseAddress.assumingMemoryBound(to: sockaddr.self)
+            guard Int32(sockaddrPointer.pointee.sa_family) == AF_INET6 else { return nil }
+            return baseAddress.assumingMemoryBound(to: sockaddr_in6.self).pointee.sin6_scope_id
+        }
+    }
+
+
+    private static func normalizedServiceDomain(_ domain: String) -> String {
+        let trimmedDomain = domain.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !trimmedDomain.isEmpty else { return "local." }
+        return trimmedDomain.hasSuffix(".") ? trimmedDomain : "\(trimmedDomain)."
+    }
+
+
+    private static func normalizedServiceType(_ type: String) -> String {
+        let trimmedType = type.trimmingCharacters(in: .whitespacesAndNewlines)
+        return trimmedType.hasSuffix(".") ? trimmedType : "\(trimmedType)."
+    }
+}

NearbyShare/Connection/NearbyConnection.swift

@@ -46,7 +46,7 @@ class NearbyConnection {
     private var dataTransferInactivityTimer: DispatchSourceTimer?
     
     private let ackInterval: TimeInterval = 5
-    private let ackTimeoutInterval: TimeInterval = 30
+    private let ackTimeoutInterval: TimeInterval = 60
     private var lastKeepAliveFrameSent = Date()
     
     // UKEY2-related state
@@ -424,14 +424,29 @@ class NearbyConnection {
             let chunk = payloadTransfer.payloadChunk
             
             guard header.hasType, header.hasID else { throw NearbyError.requiredFieldMissing("payloadHeader.type|id") }
-            guard payloadTransfer.hasPayloadChunk, chunk.hasOffset, chunk.hasFlags else {
 
-                if payloadTransfer.controlMessage.event == .payloadCanceled {
+            if payloadTransfer.hasPayloadChunk {
+                guard chunk.hasOffset, chunk.hasFlags else {
+                    log("[NearbyConnection \(self.id)] Payload transfer chunk is missing offset or flags. Frame is \(payloadTransfer.debugDescription)")
+                    throw NearbyError.requiredFieldMissing("payloadChunk.offset|flags")
+                }
+            } else if payloadTransfer.hasControlMessage || payloadTransfer.packetType == .control {
+                switch payloadTransfer.controlMessage.event {
+                case .payloadCanceled:
                     log("[NearbyConnection \(self.id)] Cancel control frame received.")
                     throw NearbyError.canceled(reason: .userCanceled)
+                case .payloadReceivedAck:
+                    // Legacy peers can send ACKs as control events instead of packetType=.payloadAck.
+                    return
+                case .payloadError:
+                    throw NearbyError.protocolError("Peer reported payload error")
+                case .unknownEventType:
+                    return
                 }
-                
+            } else if payloadTransfer.packetType == .payloadAck {
-                log("[NearbyConnection \(self.id)] Payload transfer chunk is missing offset or flags. Frame is \(payloadTransfer.debugDescription)")
+                return
+            } else {
+                log("[NearbyConnection \(self.id)] Payload transfer frame missing supported payload content. Frame is \(payloadTransfer.debugDescription)")
                 throw NearbyError.requiredFieldMissing("payloadChunk.offset|flags")
             }
             
@@ -484,6 +499,9 @@ class NearbyConnection {
                 // Older peers can omit the keepAlive payload; default to ACK reply.
                 sendKeepAlive(ack: true)
             }
+        } else if offlineFrame.hasV1, offlineFrame.v1.hasType, case .disconnection = offlineFrame.v1.type {
+            log("[NearbyConnection \(self.id)] Received disconnection frame.")
+            disconnect()
         } else {
             
             if offlineFrame.hasV1, offlineFrame.v1.hasType, offlineFrame.v1.type == .bandwidthUpgradeRetry {

NearbyShare/Connection/NearbyConnectionManager.swift

@@ -33,9 +33,14 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
     private var outboundAppDelegates: [OutboundAppDelegate] = []
     private var inboundAppDelegates: [InboundAppDelegate] = []
     private var outgoingTransfers: [String: OutgoingTransferInfo] = [:]
+    private var pendingOutgoingTransferPreparations: [String: UUID] = [:]
+    private var outgoingServiceResolvers: [String: NearbyBonjourServiceResolver] = [:]
+    private let pendingNotificationSyncTrustQueue = DispatchQueue(label: "NearbyConnectionManager.pendingNotificationSyncTrust")
+    private var pendingNotificationSyncTrust: [String: PendingReceiverTrust] = [:]
     private var startedDeviceDiscovery = false
     private var startedAdvertising = false { didSet { informAboutStatus() }}
     private var browsers: [NWBrowser] = []
+    private let deviceNameResolver = NearbyDeviceNameResolver()
     private let serviceTypes = ["_FC9F5ED42C8A._tcp."]
     private var qrCodePrivateKey: ECPrivateKey?
     private var qrCodeAdvertisingToken: Data?
@@ -46,9 +51,10 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
     private static let customDeviceNameKey = "com.leonboettger.quickdrop.deviceName"
     private var defaultPort: NWEndpoint.Port = 50362
     private let txtKeyEndpointInfo = "n"
-    private let txtKeyNotificationSyncCapabilities = "qd_caps"
+    private let txtQuickDropCapabilities = "qd_caps"
-    private let txtKeyNotificationSyncKeyFingerprint = "qd_kid"
+    private let txtQuickDropDeviceKeyFingerprint = "qd_kid"
     private let notificationSyncCapabilityToken = "nsync1"
+    private let clipboardReceiveCapabilityToken = "cliprecv1"
     private let unnamedAndroidFallbackDeviceName = "AndroidDevice".localized()
     
     
@@ -315,11 +321,15 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
             var txtRecord: [String: Data] = [
                 txtKeyEndpointInfo: deviceInfo.serialize().urlSafeBase64EncodedString().data(using: .utf8)!,
             ]
-            #if os(macOS)
-            txtRecord[txtKeyNotificationSyncCapabilities] = Data(notificationSyncCapabilityToken.utf8)
             if let keyFingerprint = notificationSyncKeyFingerprintHex() {
-                txtRecord[txtKeyNotificationSyncKeyFingerprint] = Data(keyFingerprint.utf8)
+                txtRecord[txtQuickDropDeviceKeyFingerprint] = Data(keyFingerprint.utf8)
             }
+            #if os(macOS)
+            let capabilityTokens = [
+                notificationSyncCapabilityToken,
+                clipboardReceiveCapabilityToken,
+            ]
+            txtRecord[txtQuickDropCapabilities] = Data(capabilityTokens.joined(separator: ",").utf8)
             #endif
             service.setTXTRecord(NetService.data(fromTXTRecord: txtRecord))
             service.publish()
@@ -370,14 +380,21 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
 
         if !connection.wasUserRejected {
             inboundAppDelegates.forEach { delegate in
-                delegate.connectionWasTerminated(connectionID: connection.id, from: connection.remoteDeviceInfo, savedFiles: savedFiles, wasPlainTextTransfer: connection.isPlainTextTransfer, error: error)
+                delegate.connectionWasTerminated(
+                    connectionID: connection.id,
+                    from: connection.remoteDeviceInfo,
+                    savedFiles: savedFiles,
+                    wasPlainTextTransfer: connection.isPlainTextTransfer,
+                    wasClipboardSync: connection.isClipboardSyncTransfer,
+                    error: error
+                )
             }
         }
     }
 
-    func notificationSyncSetupConfirmed(connection _: InboundNearbyConnection) {
+    func pairingSetupConfirmed(connection _: InboundNearbyConnection) {
         inboundAppDelegates.forEach { delegate in
-            delegate.notificationSyncSetupConfirmed()
+            delegate.pairingSetupConfirmed()
         }
     }
     
@@ -429,6 +446,8 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
                                 self.addFoundDevice(service: res)
                             case let .removed(res):
                                 self.removeFoundDevice(service: res)
+                            case let .changed(_, new, _):
+                                self.addFoundDevice(service: new)
                             default:
                                 log("[NearbyConnectionManager] Ignoring change \(change)")
                             }
@@ -473,7 +492,7 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
             
             browsers.removeAll()
             startedDeviceDiscovery = false
-            
+            deviceNameResolver.cancelAll()
             
             for delegate in outboundAppDelegates {
                 
@@ -486,6 +505,16 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
     }
 
 
+    var isDeviceDiscoveryActive: Bool {
+        startedDeviceDiscovery
+    }
+
+
+    func discoveredDevices() -> [RemoteDeviceInfo] {
+        foundServices.values.compactMap(\.device)
+    }
+    
+    
     public func addOutboundAppDelegate(_ delegate: OutboundAppDelegate) {
         outboundAppDelegates.append(delegate)
         for service in foundServices.values {
@@ -510,10 +539,11 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
     
     
     public func cancelTransfer(id: String) {
-        
         if let transfer = incomingConnections[id] {
             transfer.cancel()
         }
+        pendingOutgoingTransferPreparations.removeValue(forKey: id)
+        outgoingServiceResolvers.removeValue(forKey: id)?.cancel()
         if let info = outgoingTransfers[id] {
             info.connection.cancel()
         }
@@ -552,14 +582,57 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
         guard case let NWBrowser.Result.Metadata.bonjour(txtRecord) = service.metadata else { return }
         guard let endpointInfoEncoded = txtRecord.dictionary[txtKeyEndpointInfo] else { return }
         guard let endpointInfoData = Data.dataFromUrlSafeBase64(endpointInfoEncoded) else { return }
-        var endpointInfo = EndpointInfo(data: endpointInfoData)
+        let parsedEndpointInfo = EndpointInfo(data: endpointInfoData)
+        let keyFingerprint = normalizedKeyFingerprint(
+            txtRecord.dictionary[txtQuickDropDeviceKeyFingerprint]
+        )
+        let capabilityTokens = Set(
+            txtRecord.dictionary[txtQuickDropCapabilities]?
+                .split(separator: ",")
+                .map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
+                .filter { !$0.isEmpty } ?? []
+        )
+        let supportsNotificationSync = capabilityTokens.contains(notificationSyncCapabilityToken)
+        let supportsClipboardReceive = capabilityTokens.contains(clipboardReceiveCapabilityToken)
+        var endpointInfo = parsedEndpointInfo
             ?? EndpointInfo(name: unnamedAndroidFallbackDeviceName, deviceType: .unknown)
-
+        let isQuickDropPeer = keyFingerprint != nil
-        let cleanedName = endpointInfo.name?.trimmingCharacters(in: .whitespacesAndNewlines)
+        let needsDeviceNameLookup = deviceNameResolver.needsLookup(for: parsedEndpointInfo)
-        if cleanedName?.isEmpty != false {
+        if needsDeviceNameLookup {
             endpointInfo.name = unnamedAndroidFallbackDeviceName
         }
-        let deviceInfo = addFoundDevice(foundService: &foundService, endpointInfo: endpointInfo, endpointID: endpointID)
+        let deviceInfo = addFoundDevice(
+            foundService: &foundService,
+            endpointInfo: endpointInfo,
+            endpointID: endpointID,
+            isQuickDropPeer: isQuickDropPeer,
+            keyFingerprint: keyFingerprint,
+            supportsNotificationSync: supportsNotificationSync,
+            supportsClipboardReceive: supportsClipboardReceive
+        )
+
+        if needsDeviceNameLookup {
+            deviceNameResolver.resolveName(for: service, endpointID: endpointID) { [weak self] deviceName in
+                guard let self else { return }
+                guard self.foundServices[endpointID]?.device?.name == self.unnamedAndroidFallbackDeviceName else { return }
+
+                var resolvedEndpointInfo = endpointInfo
+                resolvedEndpointInfo.name = deviceName
+                var resolvedFoundService = FoundServiceInfo(service: service)
+                _ = self.addFoundDevice(
+                    foundService: &resolvedFoundService,
+                    endpointInfo: resolvedEndpointInfo,
+                    endpointID: endpointID,
+                    isQuickDropPeer: isQuickDropPeer,
+                    keyFingerprint: keyFingerprint,
+                    supportsNotificationSync: supportsNotificationSync,
+                    supportsClipboardReceive: supportsClipboardReceive
+                )
+            }
+        }
+        else {
+            deviceNameResolver.cancelLookup(for: endpointID)
+        }
         
         if let qrData = endpointInfo.qrCodeData, let qrCodeAdvertisingToken = qrCodeAdvertisingToken, let qrCodeNameEncryptionKey = qrCodeNameEncryptionKey {
             
@@ -576,7 +649,15 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
                     let decryptedName = try AES.GCM.open(box, using: qrCodeNameEncryptionKey, authenticating: qrCodeAdvertisingToken)
                     guard let name = String.init(data: decryptedName, encoding: .utf8) else { return }
                     endpointInfo.name = name
-                    let deviceInfo = addFoundDevice(foundService: &foundService, endpointInfo: endpointInfo, endpointID: endpointID)
+                    let deviceInfo = addFoundDevice(
+                        foundService: &foundService,
+                        endpointInfo: endpointInfo,
+                        endpointID: endpointID,
+                        isQuickDropPeer: isQuickDropPeer,
+                        keyFingerprint: keyFingerprint,
+                        supportsNotificationSync: supportsNotificationSync,
+                        supportsClipboardReceive: supportsClipboardReceive
+                    )
                     for delegate in outboundAppDelegates {
                         delegate.startTransferWithQrCode(device: deviceInfo)
                     }
@@ -588,9 +669,24 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
     }
     
     
-    private func addFoundDevice(foundService: inout FoundServiceInfo, endpointInfo: EndpointInfo, endpointID: String) -> RemoteDeviceInfo {
+    private func addFoundDevice(
+        foundService: inout FoundServiceInfo,
+        endpointInfo: EndpointInfo,
+        endpointID: String,
+        isQuickDropPeer: Bool = false,
+        keyFingerprint: String? = nil,
+        supportsNotificationSync: Bool = false,
+        supportsClipboardReceive: Bool = false
+    ) -> RemoteDeviceInfo {
         let hadPreviousDevice = foundServices[endpointID]?.device != nil
-        let deviceInfo = RemoteDeviceInfo(info: endpointInfo, id: endpointID)
+        let deviceInfo = RemoteDeviceInfo(
+            info: endpointInfo,
+            id: endpointID,
+            isQuickDropPeer: isQuickDropPeer,
+            keyFingerprint: keyFingerprint,
+            supportsNotificationSync: supportsNotificationSync,
+            supportsClipboardReceive: supportsClipboardReceive
+        )
         foundService.device = deviceInfo
         foundServices[endpointID] = foundService
         
@@ -608,9 +704,28 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
     }
 
 
+    public func resolveDiscoveredDeviceIdForKeyFingerprint(_ keyFingerprint: String) -> String? {
+        guard let normalizedFingerprint = normalizedKeyFingerprint(keyFingerprint) else {
+            return nil
+        }
+
+        return foundServices.values
+            .first(where: { $0.device?.keyFingerprint == normalizedFingerprint })?
+            .device?
+            .id
+    }
+    
+    
     private func removeFoundDevice(service: NWBrowser.Result) {
         guard let endpointID = endpointID(for: service) else { return }
-        guard let _ = foundServices.removeValue(forKey: endpointID) else { return }
+        deviceNameResolver.cancelLookup(for: endpointID)
+        guard let currentService = foundServices[endpointID] else { return }
+        // Ignore delayed removals for an older Bonjour result after a changed result
+        // has already replaced the service for this endpoint ID.
+        guard serviceIdentity(currentService.service) == serviceIdentity(service) else {
+            return
+        }
+        foundServices.removeValue(forKey: endpointID)
         for delegate in outboundAppDelegates {
             delegate.removeDevice(id: endpointID)
         }
@@ -657,32 +772,132 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
     }
     
     
-    public func startOutgoingTransfer(deviceID: String, delegate: OutboundAppDelegate, urls: [URL], textToSend: String?) {
+    @discardableResult
+    public func startOutgoingTransfer(
+        deviceID: String,
+        delegate: OutboundAppDelegate,
+        urls: [URL],
+        textToSend: String?,
+        preparationFinished: (() -> Void)? = nil,
+        isClipboardSyncTransfer: Bool = false,
+        receiverAuthenticationPolicy: ReceiverAuthenticationPolicy
+    ) -> Bool {
         log("Starting outgoing transfer to \(deviceID)")
-        guard let info = foundServices[deviceID] else { return }
+        guard foundServices[deviceID] != nil else {
+            let error = NearbyError.protocolError("TargetDeviceNoLongerNearby".localized())
+            delegate.connectionFailed(error: error)
+            return false
+        }
+
+        let preparationID = UUID()
+        pendingOutgoingTransferPreparations[deviceID] = preparationID
+
+        DispatchQueue.global(qos: .userInitiated).async { [weak self, weak delegate] in
+            guard let self else { return }
 
             do {
-            let localUrls = try saveFilesToTemp(urls: urls)
+                let localUrls = try self.saveFilesToTemp(urls: urls)
+
+                DispatchQueue.main.async {
+                    guard let info = self.foundServices[deviceID],
+                          self.pendingOutgoingTransferPreparations[deviceID] == preparationID else {
+                        return
+                    }
+
+                    guard let delegate else {
+                        self.pendingOutgoingTransferPreparations.removeValue(forKey: deviceID)
+                        return
+                    }
+
+                    preparationFinished?()
+
+                    self.resolveOutgoingEndpoint(for: info.service, deviceID: deviceID) { endpoint, requiredInterface in
+                        guard let info = self.foundServices[deviceID],
+                              self.pendingOutgoingTransferPreparations[deviceID] == preparationID else {
+                            return
+                        }
+
+                        self.pendingOutgoingTransferPreparations.removeValue(forKey: deviceID)
 
                         let tcp = NWProtocolTCP.Options()
                         tcp.noDelay = true
-            let nwconn = NWConnection(to: info.service.endpoint, using: NWParameters(tls: .none, tcp: tcp))
+                        let parameters = NWParameters(tls: .none, tcp: tcp)
+                        parameters.requiredInterface = requiredInterface
+                        let nwconn = NWConnection(to: endpoint, using: parameters)
 
-            let conn = OutboundNearbyConnection(connection: nwconn, id: deviceID, urlsToSend: localUrls, textToSend: textToSend)
+                        let conn = OutboundNearbyConnection(
+                            connection: nwconn,
+                            id: deviceID,
+                            urlsToSend: localUrls,
+                            textToSend: textToSend,
+                            isClipboardSyncTransfer: isClipboardSyncTransfer,
+                            receiverAuthenticationPolicy: receiverAuthenticationPolicy
+                        )
+                        conn.remoteDeviceInfo = info.device
                         conn.delegate = self
-            conn.qrCodePrivateKey = qrCodePrivateKey
+                        conn.qrCodePrivateKey = self.qrCodePrivateKey
 
                         let transfer = OutgoingTransferInfo(service: info.service, device: info.device!, connection: conn, delegate: delegate)
-            outgoingTransfers[deviceID] = transfer
+                        self.outgoingTransfers[deviceID] = transfer
                         conn.start()
+                    }
+                }
             } catch {
                 log("[NearbyConnectionManager] Error storing URLs: \(error)")
-            outboundAppDelegates.forEach { delegate in
+                DispatchQueue.main.async {
-                delegate.connectionFailed(error: error)
+                    guard self.pendingOutgoingTransferPreparations[deviceID] == preparationID else {
+                        return
+                    }
+
+                    self.pendingOutgoingTransferPreparations.removeValue(forKey: deviceID)
+                    delegate?.connectionFailed(error: error)
                 }
             }
         }
 
+        return true
+    }
+
+
+    private func resolveOutgoingEndpoint(
+        for service: NWBrowser.Result,
+        deviceID: String,
+        completion: @escaping (NWEndpoint, NWInterface?) -> Void
+    ) {
+        guard let resolver = NearbyBonjourServiceResolver(result: service, resolveTimeout: 2.5, completion: { [weak self] endpoints in
+            guard let self else { return }
+            self.outgoingServiceResolvers.removeValue(forKey: deviceID)
+
+            if let endpoint = endpoints.first {
+                completion(endpoint.endpoint, endpoint.interface)
+            } else {
+                log("[NearbyConnectionManager] Could not resolve outgoing service for \(deviceID); falling back to Bonjour endpoint \(service.endpoint)")
+                completion(service.endpoint, nil)
+            }
+        }) else {
+            log("[NearbyConnectionManager] Cannot create resolver for outgoing service; falling back to Bonjour endpoint")
+            completion(service.endpoint, nil)
+            return
+        }
+
+        outgoingServiceResolvers.removeValue(forKey: deviceID)?.cancel()
+        outgoingServiceResolvers[deviceID] = resolver
+        resolver.start()
+    }
+
+
+    private func normalizedKeyFingerprint(_ keyFingerprint: String?) -> String? {
+        let normalized = keyFingerprint?
+            .trimmingCharacters(in: .whitespacesAndNewlines)
+            .lowercased()
+        return normalized?.isEmpty == false ? normalized : nil
+    }
+    
+    
+    private func serviceIdentity(_ service: NWBrowser.Result) -> String {
+        String(describing: service.endpoint)
+    }
+    
     
     func connectionWasEstablished(connection: OutboundNearbyConnection) {
         guard let transfer = outgoingTransfers[connection.id] else { return }
@@ -726,6 +941,78 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
     }
 
 
+    func receiverAuthenticationPending(
+        connection _: OutboundNearbyConnection,
+        certificateData: Data,
+        device: RemoteDeviceInfo,
+        fingerprint: String
+    ) {
+        guard let normalizedFingerprint = normalizedKeyFingerprint(fingerprint) else { return }
+        log("[NearbyConnectionManager] Receiver auth pending: fingerprint=\(normalizedFingerprint) device=\(device.name ?? "unknown") (\(device.id ?? "no-id"))")
+        pendingNotificationSyncTrustQueue.sync {
+            pendingNotificationSyncTrust[normalizedFingerprint] = PendingReceiverTrust(
+                certificateData: certificateData,
+                device: device
+            )
+        }
+    }
+
+
+    public func commitNotificationSyncReceiverTrust(_ fingerprint: String) -> Bool {
+        guard let normalizedFingerprint = normalizedKeyFingerprint(fingerprint) else {
+            return false
+        }
+
+        let pending = pendingNotificationSyncTrustQueue.sync {
+            pendingNotificationSyncTrust.removeValue(forKey: normalizedFingerprint)
+        }
+
+        if pending == nil {
+            let alreadyTrusted = TrustStore.shared.trustedCertificates.keys.contains(normalizedFingerprint)
+            if alreadyTrusted {
+                log("[NearbyConnectionManager] Commit trust skipped: already trusted for \(normalizedFingerprint)")
+                return true
+            }
+
+            log("[NearbyConnectionManager] Commit trust failed: no pending entry for \(normalizedFingerprint)")
+            return false
+        }
+
+        guard let pending,
+              let certificate = try? Sharing_Nearby_PublicCertificate(serializedBytes: pending.certificateData) else {
+            log("[NearbyConnectionManager] Commit trust failed: could not parse certificate for \(normalizedFingerprint)")
+            return false
+        }
+
+        let derivedFingerprint = certificate.secretID.hex.lowercased()
+        guard derivedFingerprint == normalizedFingerprint else {
+            log("[NearbyConnectionManager] Commit trust failed: fingerprint mismatch pending=\(normalizedFingerprint) derived=\(derivedFingerprint)")
+            return false
+        }
+
+        log("[NearbyConnectionManager] Commit trust succeeded for fingerprint=\(normalizedFingerprint)")
+        TrustStore.shared.addTrusted(certificate: certificate, device: pending.device)
+        return true
+    }
+
+
+    public func clearPendingNotificationSyncReceiverTrust(_ fingerprint: String? = nil) {
+        if fingerprint == nil {
+            pendingNotificationSyncTrustQueue.sync {
+                pendingNotificationSyncTrust.removeAll()
+            }
+            log("[NearbyConnectionManager] Cleared all pending receiver trust entries")
+            return
+        }
+
+        guard let normalizedFingerprint = normalizedKeyFingerprint(fingerprint) else { return }
+        _ = pendingNotificationSyncTrustQueue.sync {
+            pendingNotificationSyncTrust.removeValue(forKey: normalizedFingerprint)
+        }
+        log("[NearbyConnectionManager] Cleared pending receiver trust for \(normalizedFingerprint)")
+    }
+    
+    
     public func getActiveConnectionsCount() -> Int {
         return incomingConnections.count + outgoingTransfers.count
     }
@@ -862,4 +1149,10 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
         let connection: OutboundNearbyConnection
         let delegate: OutboundAppDelegate
     }
+
+
+    private struct PendingReceiverTrust {
+        let certificateData: Data
+        let device: RemoteDeviceInfo
+    }
 }

NearbyShare/Connection/NearbyDeviceNameResolver.swift

@@ -0,0 +1,134 @@
+//
+//  NearbyDeviceNameResolver.swift
+//  QuickDrop
+//
+//  Created by Leon Böttger on 25.04.2026.
+//
+
+import Darwin
+import Foundation
+import Network
+
+final class NearbyDeviceNameResolver {
+    private static let hostnameLookupQueue = DispatchQueue(
+        label: "com.leonboettger.quickdrop.deviceNameHostnameLookup",
+        qos: .utility
+    )
+
+    private var hostnameResolvers: [UUID: NearbyBonjourServiceResolver] = [:]
+    private var lookupTokens: [String: UUID] = [:]
+    
+    func needsLookup(for endpointInfo: EndpointInfo?) -> Bool {
+        let cleanedName = endpointInfo?.name?.trimmingCharacters(in: .whitespacesAndNewlines)
+        return cleanedName?.isEmpty != false
+    }
+    
+
+    func resolveName(for service: NWBrowser.Result, endpointID: String, completion: @escaping (String) -> Void) {
+        let lookupToken = UUID()
+        lookupTokens[endpointID] = lookupToken
+
+        resolveAdvertisedHostname(for: service) { [weak self] hostname in
+            guard let self else { return }
+            guard self.lookupTokens[endpointID] == lookupToken else { return }
+            self.lookupTokens.removeValue(forKey: endpointID)
+            guard let hostname else { return }
+            completion(hostname)
+        }
+    }
+
+    
+    func cancelLookup(for endpointID: String) {
+        lookupTokens.removeValue(forKey: endpointID)
+    }
+
+    
+    func cancelAll() {
+        lookupTokens.removeAll()
+        hostnameResolvers.values.forEach { $0.cancel() }
+        hostnameResolvers.removeAll()
+    }
+    
+
+    private func resolveAdvertisedHostname(for service: NWBrowser.Result, completion: @escaping (String?) -> Void) {
+        let resolverID = UUID()
+        guard let resolver = NearbyBonjourServiceResolver(
+            result: service,
+            resolveTimeout: 0.5,
+            watchdogGracePeriod: 1.0,
+            completion: { [weak self] endpoints in
+                self?.hostnameResolvers.removeValue(forKey: resolverID)
+                guard let ipv4Address = endpoints.first(where: \.isIPv4)?.host else {
+                    completion(nil)
+                    return
+                }
+
+                Self.hostnameLookupQueue.async {
+                    let hostname = NearbyHostLookup.hostname(forIPv4: ipv4Address)
+                    DispatchQueue.main.async {
+                        completion(hostname)
+                    }
+                }
+            }
+        ) else {
+            completion(nil)
+            return
+        }
+
+        hostnameResolvers[resolverID] = resolver
+        resolver.start()
+    }
+}
+
+
+private enum NearbyHostLookup {
+    static func hostname(forIPv4 address: String) -> String? {
+        reverseDNSName(forIPv4: address).flatMap(prettifyDisplayName)
+    }
+
+    
+    private static func reverseDNSName(forIPv4 address: String) -> String? {
+        var socketAddress = sockaddr_in()
+        socketAddress.sin_len = UInt8(MemoryLayout<sockaddr_in>.size)
+        socketAddress.sin_family = sa_family_t(AF_INET)
+
+        guard inet_pton(AF_INET, address, &socketAddress.sin_addr) == 1 else {
+            return nil
+        }
+
+        var hostBuffer = [CChar](repeating: 0, count: Int(NI_MAXHOST))
+        let result = withUnsafePointer(to: &socketAddress) { pointer in
+            pointer.withMemoryRebound(to: sockaddr.self, capacity: 1) { sockaddrPointer in
+                getnameinfo(
+                    sockaddrPointer,
+                    socklen_t(MemoryLayout<sockaddr_in>.size),
+                    &hostBuffer,
+                    socklen_t(hostBuffer.count),
+                    nil,
+                    0,
+                    NI_NAMEREQD
+                )
+            }
+        }
+
+        guard result == 0 else { return nil }
+        return String(cString: hostBuffer)
+    }
+    
+
+    private static func prettifyDisplayName(_ value: String?) -> String? {
+        guard let value = value?.trimmingCharacters(in: .whitespacesAndNewlines), !value.isEmpty else {
+            return nil
+        }
+
+        let withoutZone = value.split(separator: "%").first.map(String.init) ?? value
+        let withoutDomain = withoutZone.split(separator: ".").first.map(String.init) ?? withoutZone
+        let prettified = withoutDomain
+            .replacingOccurrences(of: "-", with: " ")
+            .replacingOccurrences(of: "_", with: " ")
+            .trimmingCharacters(in: .whitespacesAndNewlines)
+
+        guard !prettified.isEmpty else { return nil }
+        return prettified.capitalized
+    }
+}

NearbyShare/Connection/OutboundNearbyConnection.swift

@@ -22,11 +22,14 @@ class OutboundNearbyConnection: NearbyConnection {
     private var currentState: State = .initial
     private let urlsToSend: [URL]
     private let textToSend: String?
+    private let isClipboardSyncTransfer: Bool
+    private let receiverAuthenticationPolicy: ReceiverAuthenticationPolicy
     private var ukeyClientFinishMsgData: Data?
     private var queue: [OutgoingFileTransfer] = []
     private var currentTransfer: OutgoingFileTransfer?
     private var totalBytesToSend: Int64 = 0
     private var textPayloadID: Int64 = 0
+    private var receiverAuthenticationVerified = false
     
     public var qrCodePrivateKey: ECPrivateKey?
     public var delegate: OutboundNearbyConnectionDelegate?
@@ -35,10 +38,19 @@ class OutboundNearbyConnection: NearbyConnection {
         case initial, sentUkeyClientInit, sentUkeyClientFinish, sentPairedKeyEncryption, sentPairedKeyResult, sentIntroduction, sendingFiles
     }
 
-    init(connection: NWConnection, id: String, urlsToSend: [URL], textToSend: String?) {
+    init(
+        connection: NWConnection,
+        id: String,
+        urlsToSend: [URL],
+        textToSend: String?,
+        isClipboardSyncTransfer: Bool = false,
+        receiverAuthenticationPolicy: ReceiverAuthenticationPolicy
+    ) {
         
         self.urlsToSend = urlsToSend
         self.textToSend = textToSend
+        self.isClipboardSyncTransfer = isClipboardSyncTransfer
+        self.receiverAuthenticationPolicy = receiverAuthenticationPolicy
         
         super.init(connection: connection, id: id)
         
@@ -368,7 +380,12 @@ class OutboundNearbyConnection: NearbyConnection {
         pairedResult.v1 = Sharing_Nearby_V1Frame()
         pairedResult.v1.type = .pairedKeyResult
         pairedResult.v1.pairedKeyResult = Sharing_Nearby_PairedKeyResultFrame()
+        if receiverAuthenticationPolicy.requiresReceiverAuthentication {
+            try verifyReceiverAuthentication(frame: frame)
+            pairedResult.v1.pairedKeyResult.status = .success
+        } else {
             pairedResult.v1.pairedKeyResult.status = .unable
+        }
         
         try sendTransferSetupFrame(pairedResult)
         currentState = .sentPairedKeyResult
@@ -377,10 +394,16 @@ class OutboundNearbyConnection: NearbyConnection {
     
     private func processPairedKeyResult(frame: Sharing_Nearby_Frame) throws {
         guard frame.hasV1, frame.v1.hasPairedKeyResult else { throw NearbyError.requiredFieldMissing("sharingNearbyFrame.v1.pairedKeyResult") }
+        if receiverAuthenticationPolicy.requiresReceiverAuthentication, !receiverAuthenticationVerified {
+            throw NearbyError.protocolError("Receiver authentication incomplete")
+        }
 
         var introduction = Sharing_Nearby_Frame()
         introduction.version = .v1
         introduction.v1.type = .introduction
+        if isClipboardSyncTransfer {
+            introduction.v1.introduction.useCase = .remoteCopy
+        }
         
         if let textToSend = textToSend {
             var meta = Sharing_Nearby_TextMetadata()
@@ -473,6 +496,84 @@ class OutboundNearbyConnection: NearbyConnection {
     }
 
 
+    private func verifyReceiverAuthentication(frame: Sharing_Nearby_Frame) throws {
+        guard let expectedFingerprint = receiverAuthenticationPolicy.expectedReceiverKeyFingerprint, !expectedFingerprint.isEmpty else {
+            throw NearbyError.protocolError("Missing expected receiver fingerprint")
+        }
+
+        guard let certificate = frame.v1.certificateInfo.publicCertificate.first else {
+            throw NearbyError.protocolError("Missing receiver certificate")
+        }
+
+        let certificateData = try certificate.serializedData()
+        let secretID = certificate.secretID
+        guard !secretID.isEmpty else {
+            throw NearbyError.protocolError("Missing receiver key ID")
+        }
+
+        let peerGenericKey = try Securemessage_GenericPublicKey(serializedBytes: certificate.publicKey)
+        guard let derivedKeyID = peerGenericKey.id() else {
+            throw NearbyError.protocolError("Receiver key ID derivation failed")
+        }
+
+        guard secretID == derivedKeyID else {
+            throw NearbyError.protocolError("Receiver key ID mismatch")
+        }
+
+        let actualFingerprint = derivedKeyID.hex.lowercased()
+        guard actualFingerprint == expectedFingerprint else {
+            throw NearbyError.protocolError("Receiver fingerprint mismatch")
+        }
+
+        let pinnedCertificateData = TrustStore.shared.findTrustedKey(for: secretID)
+        if pinnedCertificateData == nil, !receiverAuthenticationPolicy.allowsReceiverTrustBootstrap {
+            throw NearbyError.protocolError("Receiver certificate is not trusted")
+        }
+
+        if let pinnedCertificateData, pinnedCertificateData != certificateData {
+            throw NearbyError.protocolError("Receiver certificate changed")
+        }
+
+        let pairedKeyEncryption = frame.v1.pairedKeyEncryption
+        guard pairedKeyEncryption.secretIDHash == secretID else {
+            throw NearbyError.protocolError("Receiver sent unexpected key ID")
+        }
+
+        guard let authKeyData = authKey?.data() else {
+            throw NearbyError.protocolError("Missing auth key for receiver verification")
+        }
+
+        let domain = Domain.instance(curve: .EC256r1)
+        let ecKey = peerGenericKey.ecP256PublicKey
+        let point = Point(
+            BInt(magnitude: [UInt8](ecKey.x.ensureLength(length: 32))),
+            BInt(magnitude: [UInt8](ecKey.y.ensureLength(length: 32)))
+        )
+
+        guard let peerPublicKey = try? ECPublicKey(domain: domain, w: point) else {
+            throw NearbyError.protocolError("Invalid receiver public key")
+        }
+
+        let signature = try ECSignature(asn1: .build(pairedKeyEncryption.signedData), domain: domain)
+        guard peerPublicKey.verify(signature: signature, msg: authKeyData) else {
+            throw NearbyError.protocolError("Receiver signature verification failed")
+        }
+
+        if pinnedCertificateData == nil, receiverAuthenticationPolicy.allowsReceiverTrustBootstrap {
+            guard let device = remoteDeviceInfo else {
+                throw NearbyError.protocolError("Missing remote device info for receiver trust")
+            }
+            delegate?.receiverAuthenticationPending(
+                connection: self,
+                certificateData: certificateData,
+                device: device,
+                fingerprint: actualFingerprint
+            )
+        }
+
+        receiverAuthenticationVerified = true
+    }
+
     private func hasURL() -> Bool {
         urlsToSend.count == 1 && !urlsToSend[0].isFileURL
     }
@@ -593,3 +694,32 @@ class OutboundNearbyConnection: NearbyConnection {
         var currentOffset: Int64
     }
 }
+
+private extension ReceiverAuthenticationPolicy {
+    var expectedReceiverKeyFingerprint: String? {
+        switch self {
+        case .none:
+            return nil
+        case .trustedReceiver(let fingerprint), .bootstrapReceiverTrust(let fingerprint):
+            return Self.normalizedFingerprint(fingerprint)
+        }
+    }
+
+    var allowsReceiverTrustBootstrap: Bool {
+        if case .bootstrapReceiverTrust = self {
+            return true
+        }
+        return false
+    }
+
+    var requiresReceiverAuthentication: Bool {
+        if case .none = self {
+            return false
+        }
+        return true
+    }
+
+    static func normalizedFingerprint(_ fingerprint: String) -> String {
+        fingerprint.trimmingCharacters(in: .whitespacesAndNewlines).lowercased()
+    }
+}

NearbyShare/Model/DataModel.swift

@@ -19,7 +19,7 @@ protocol InboundNearbyConnectionDelegate {
     func updatedTransferProgress(connection: InboundNearbyConnection, progress: Double)
     func connectionWasTerminated(connection: InboundNearbyConnection, savedFiles: [URL], error: Error?)
     func showPlusScreen()
-    func notificationSyncSetupConfirmed(connection: InboundNearbyConnection)
+    func pairingSetupConfirmed(connection: InboundNearbyConnection)
 }
 
 
@@ -29,20 +29,33 @@ protocol OutboundNearbyConnectionDelegate {
     func transferAccepted(connection: OutboundNearbyConnection)
     func failedWithError(connection: OutboundNearbyConnection, error: Error)
     func transferFinished(connection: OutboundNearbyConnection)
+    func receiverAuthenticationPending(
+        connection: OutboundNearbyConnection,
+        certificateData: Data,
+        device: RemoteDeviceInfo,
+        fingerprint: String
+    )
+}
+
+
+public enum ReceiverAuthenticationPolicy: Equatable {
+    case none
+    case trustedReceiver(fingerprint: String)
+    case bootstrapReceiverTrust(fingerprint: String)
 }
 
 
 public protocol InboundAppDelegate: AnyObject {
     func obtainUserConsent(transfer: TransferMetadata, device: RemoteDeviceInfo)
     func obtainedUserConsentAutomatically(transfer: TransferMetadata, device: RemoteDeviceInfo)
-    func connectionWasTerminated(connectionID: String, from device: RemoteDeviceInfo?, savedFiles: [URL], wasPlainTextTransfer: Bool, error: Error?)
+    func connectionWasTerminated(connectionID: String, from device: RemoteDeviceInfo?, savedFiles: [URL], wasPlainTextTransfer: Bool, wasClipboardSync: Bool, error: Error?)
     func transferProgress(connectionID: String, progress: Double)
     func showPlusScreen()
-    func notificationSyncSetupConfirmed()
+    func pairingSetupConfirmed()
 }
 
 extension InboundAppDelegate {
-    func notificationSyncSetupConfirmed() {}
+    func pairingSetupConfirmed() {}
 }
 
 
@@ -62,20 +75,87 @@ public struct RemoteDeviceInfo: Codable, Identifiable, Equatable {
     public let name: String?
     public let type: DeviceType
     public let qrCodeData: Data?
+    public let isQuickDropPeer: Bool
     public var id: String?
+    public let keyFingerprint: String?
+    public let supportsNotificationSync: Bool
+    public let supportsClipboardReceive: Bool
 
-    init(name: String?, type: DeviceType?, id: String? = nil) {
+    init(
+        name: String?,
+        type: DeviceType?,
+        id: String? = nil,
+        isQuickDropPeer: Bool = false,
+        keyFingerprint: String? = nil,
+        supportsNotificationSync: Bool = false,
+        supportsClipboardReceive: Bool = false
+    ) {
         self.name = name
         self.type = type ?? .phone
         self.id = id
         self.qrCodeData = nil
+        self.isQuickDropPeer = isQuickDropPeer
+        self.keyFingerprint = Self.normalizedKeyFingerprint(keyFingerprint)
+        self.supportsNotificationSync = supportsNotificationSync
+        self.supportsClipboardReceive = supportsClipboardReceive
     }
 
-    init(info: EndpointInfo, id: String? = nil) {
+    init(
+        info: EndpointInfo,
+        id: String? = nil,
+        isQuickDropPeer: Bool = false,
+        keyFingerprint: String? = nil,
+        supportsNotificationSync: Bool = false,
+        supportsClipboardReceive: Bool = false
+    ) {
         self.name = info.name
         self.type = info.deviceType
         self.qrCodeData = info.qrCodeData
         self.id = id
+        self.isQuickDropPeer = isQuickDropPeer
+        self.keyFingerprint = Self.normalizedKeyFingerprint(keyFingerprint)
+        self.supportsNotificationSync = supportsNotificationSync
+        self.supportsClipboardReceive = supportsClipboardReceive
+    }
+
+    private enum CodingKeys: String, CodingKey {
+        case name
+        case type
+        case qrCodeData
+        case isQuickDropPeer
+        case isVerifiedQuickDropPeer
+        case id
+        case keyFingerprint
+        case supportsNotificationSync
+        case supportsClipboardReceive
+    }
+
+    public init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        name = try container.decodeIfPresent(String.self, forKey: .name)
+        type = try container.decode(DeviceType.self, forKey: .type)
+        qrCodeData = try container.decodeIfPresent(Data.self, forKey: .qrCodeData)
+        isQuickDropPeer = try container.decodeIfPresent(Bool.self, forKey: .isQuickDropPeer)
+            ?? container.decodeIfPresent(Bool.self, forKey: .isVerifiedQuickDropPeer)
+            ?? false
+        id = try container.decodeIfPresent(String.self, forKey: .id)
+        keyFingerprint = Self.normalizedKeyFingerprint(
+            try container.decodeIfPresent(String.self, forKey: .keyFingerprint)
+        )
+        supportsNotificationSync = try container.decodeIfPresent(Bool.self, forKey: .supportsNotificationSync) ?? false
+        supportsClipboardReceive = try container.decodeIfPresent(Bool.self, forKey: .supportsClipboardReceive) ?? false
+    }
+
+    public func encode(to encoder: Encoder) throws {
+        var container = encoder.container(keyedBy: CodingKeys.self)
+        try container.encodeIfPresent(name, forKey: .name)
+        try container.encode(type, forKey: .type)
+        try container.encodeIfPresent(qrCodeData, forKey: .qrCodeData)
+        try container.encode(isQuickDropPeer, forKey: .isQuickDropPeer)
+        try container.encodeIfPresent(id, forKey: .id)
+        try container.encodeIfPresent(keyFingerprint, forKey: .keyFingerprint)
+        try container.encode(supportsNotificationSync, forKey: .supportsNotificationSync)
+        try container.encode(supportsClipboardReceive, forKey: .supportsClipboardReceive)
     }
 
     
@@ -120,6 +200,13 @@ public struct RemoteDeviceInfo: Codable, Identifiable, Equatable {
         }
         return "iphone"
     }
+
+    private static func normalizedKeyFingerprint(_ keyFingerprint: String?) -> String? {
+        let normalized = keyFingerprint?
+            .trimmingCharacters(in: .whitespacesAndNewlines)
+            .lowercased()
+        return normalized?.isEmpty == false ? normalized : nil
+    }
 }
 
 
@@ -130,14 +217,16 @@ public struct TransferMetadata {
     public let textDescription: String?
     public let type: TransferType
     public let allowsToBeAddedAsTrustedDevice: Bool
+    public let isClipboardSync: Bool
 
-    init(files: [FileMetadata], id: String, pinCode: String?, textDescription: String? = nil, transferType: TransferType = .file, allowsToBeAddedAsTrustedDevice: Bool) {
+    init(files: [FileMetadata], id: String, pinCode: String?, textDescription: String? = nil, transferType: TransferType = .file, allowsToBeAddedAsTrustedDevice: Bool, isClipboardSync: Bool = false) {
         self.files = files
         self.id = id
         self.pinCode = pinCode
         self.textDescription = textDescription
         self.type = transferType
         self.allowsToBeAddedAsTrustedDevice = allowsToBeAddedAsTrustedDevice
+        self.isClipboardSync = isClipboardSync
     }
     
     public enum TransferType {
@@ -146,6 +235,7 @@ public struct TransferMetadata {
         case url
         case wifiPassword
         case notificationSync
+        case clipboardSync
     }
     
     private func getSummary() -> String {
@@ -164,27 +254,27 @@ public struct TransferMetadata {
         let type = UTType(mimeType: mimeType) ?? UTType(filenameExtension: ext)
 
         if let type, type.conforms(to: .pdf) {
-            return UTType.pdf.localizedDescription ?? "PDF"
+            return "PDF".localized()
         }
         if let type, type.conforms(to: .image) {
-            return UTType.image.localizedDescription ?? "Image"
+            return "Image".localized()
         }
         if let type, type.conforms(to: .video) || type.conforms(to: .movie) {
-            return UTType.video.localizedDescription ?? "Video"
+            return "Video".localized()
         }
         if let type, type.conforms(to: .audio) {
-            return UTType.audio.localizedDescription ?? "Audio"
+            return "Audio".localized()
         }
         if let type, type.conforms(to: .text) {
-            return UTType.text.localizedDescription ?? "Text"
+            return "Text".localized()
         }
         if let type, type.conforms(to: .archive) {
-            return UTType.archive.localizedDescription ?? "Archive"
+            return "Archive".localized()
         }
         if let type, let description = type.localizedDescription {
             return description
         }
-        return "File"
+        return "File".localized()
     }
     
     public func getDescription(deviceName: String) -> String {
@@ -209,6 +299,12 @@ public struct TransferMetadata {
                 return textDescription
             }
             return "NotificationSyncConsentPromptFromDevice".localized(with: deviceName)
+
+            case .clipboardSync:
+            if let textDescription, !textDescription.isEmpty {
+                return textDescription
+            }
+            return "ClipboardSyncConsentPromptFromDevice".localized(with: deviceName)
         }
     }
     
@@ -217,7 +313,7 @@ public struct TransferMetadata {
     }
 }
 
-enum PairingUseCase: String {
+enum PairingUseCase: String, Codable, Hashable {
     case notificationSync = "notification_sync"
     case clipboardSync = "clipboard_sync"
 

NearbyShare/Util/PairingToken.swift

@@ -1,8 +1,8 @@
 //
-//  NotificationSyncPairingToken.swift
+//  PairingToken.swift
 //  QuickDrop
 //
-//  Created by Codex on 2026-03-15.
+//  Created by Leon Böttger on 2026-03-15.
 //
 
 import Foundation
@@ -10,7 +10,7 @@ import QRCode
 import SwiftUI
 import LUI
 
-enum NotificationSyncPairingToken {
+enum PairingToken {
     static func generate() -> String {
         Data.randomData(length: 16).urlSafeBase64EncodedString()
     }
@@ -22,14 +22,14 @@ enum NotificationSyncPairingToken {
         return keyId.hex.lowercased()
     }
 
-    static func qrPayload(token: String, receiverFingerprint: String, useCase: PairingUseCase = .notificationSync) -> String {
+    static func qrPayload(token: String, receiverFingerprint: String, useCase: PairingUseCase) -> String {
         "quickdrop://pair?token=\(token)&usecase=\(useCase.rawValue)&receiver=\(receiverFingerprint)"
     }
 
     static func makeQrImage(
         token: String,
         receiverFingerprint: String,
-        useCase: PairingUseCase = .notificationSync,
+        useCase: PairingUseCase,
         foregroundColor: CGColor = CGColor(gray: 0, alpha: 1),
         backgroundColor: CGColor = CGColor(srgbRed: 1, green: 1, blue: 1, alpha: 1)
     ) -> Image? {
@@ -47,7 +47,7 @@ enum NotificationSyncPairingToken {
                 .image(dimension: 1000)
             return Image(decorative: qrCodeImage, scale: 1.0, orientation: .up)
         } catch {
-            log("[NotificationSyncPairingToken] QR code generation failed: \(error)")
+            log("[PairingToken] QR code generation failed: \(error)")
             return nil
         }
     }

NearbyShare/Util/TrustStore.swift

@@ -11,6 +11,7 @@ import CryptoKit
 class TrustStore: ObservableObject {
     
     static let shared = TrustStore()
+    static let trustedCertificatesDidChange = Notification.Name("TrustStore.trustedCertificatesDidChange")
     
     @Published private(set) var trustedCertificates: [String: TrustedCertificate] = [:]
     
@@ -58,12 +59,18 @@ class TrustStore: ObservableObject {
         do {
             try persistTrustedCertificates()
             AppGroup.appGroupUD.removeObject(forKey: trustedKeysKey)
+            notifyTrustedCertificatesDidChange()
         } catch {
             print("[TrustStore] Failed to save trusted certificates to keychain: \(error.localizedDescription)")
         }
     }
 
 
+    private func notifyTrustedCertificatesDidChange() {
+        NotificationCenter.default.post(name: Self.trustedCertificatesDidChange, object: self)
+    }
+    
+    
     // MARK: - Public API
     
     func findTrustedKey(for secretIdHash: Data) -> Data? {
@@ -71,19 +78,45 @@ class TrustStore: ObservableObject {
     }
     
     
-    func addTrusted(certificate: Sharing_Nearby_PublicCertificate, device: RemoteDeviceInfo) {
+    func addTrusted(
+        certificate: Sharing_Nearby_PublicCertificate,
+        device: RemoteDeviceInfo,
+        grantedUseCases: Set<PairingUseCase> = []
+    ) {
         guard let publicKeyData = try? certificate.serializedData() else { return }
+        let fingerprint = certificate.secretID.hex
+        let existingGrants = trustedCertificates[fingerprint]?.grantedUseCases ?? []
         
-        trustedCertificates[certificate.secretID.hex] = TrustedCertificate(
+        trustedCertificates[fingerprint] = TrustedCertificate(
             device: device,
             creationDate: Date(),
-            certificateData: publicKeyData
+            certificateData: publicKeyData,
+            grantedUseCases: existingGrants.union(grantedUseCases)
         )
         
         saveTrustedCertificates()
     }
 
 
+    func grantUseCase(_ useCase: PairingUseCase, for secretIdHex: String) {
+        let normalized = secretIdHex.trimmingCharacters(in: .whitespacesAndNewlines).lowercased()
+        guard let existing = trustedCertificates[normalized] else { return }
+        trustedCertificates[normalized] = existing.withGrantedUseCase(useCase)
+        saveTrustedCertificates()
+    }
+
+
+    func hasUseCaseGrant(_ useCase: PairingUseCase, for secretIdHex: String?) -> Bool {
+        guard let normalized = secretIdHex?
+            .trimmingCharacters(in: .whitespacesAndNewlines)
+            .lowercased(),
+              !normalized.isEmpty else {
+            return false
+        }
+        return trustedCertificates[normalized]?.grantedUseCases.contains(useCase) == true
+    }
+    
+    
     func removeTrusted(secretIdHex: String) {
         trustedCertificates.removeValue(forKey: secretIdHex)
         saveTrustedCertificates()
@@ -142,6 +175,43 @@ class TrustStore: ObservableObject {
         let device: RemoteDeviceInfo
         let creationDate: Date
         let certificateData: Data
+        let grantedUseCases: Set<PairingUseCase>
+
+        init(
+            device: RemoteDeviceInfo,
+            creationDate: Date,
+            certificateData: Data,
+            grantedUseCases: Set<PairingUseCase> = []
+        ) {
+            self.device = device
+            self.creationDate = creationDate
+            self.certificateData = certificateData
+            self.grantedUseCases = grantedUseCases
+        }
+
+        private enum CodingKeys: String, CodingKey {
+            case device
+            case creationDate
+            case certificateData
+            case grantedUseCases
+        }
+
+        init(from decoder: Decoder) throws {
+            let container = try decoder.container(keyedBy: CodingKeys.self)
+            device = try container.decode(RemoteDeviceInfo.self, forKey: .device)
+            creationDate = try container.decode(Date.self, forKey: .creationDate)
+            certificateData = try container.decode(Data.self, forKey: .certificateData)
+            grantedUseCases = try container.decodeIfPresent(Set<PairingUseCase>.self, forKey: .grantedUseCases) ?? []
+        }
+
+        func withGrantedUseCase(_ useCase: PairingUseCase) -> TrustedCertificate {
+            TrustedCertificate(
+                device: device,
+                creationDate: creationDate,
+                certificateData: certificateData,
+                grantedUseCases: grantedUseCases.union([useCase])
+            )
+        }
     }
 
     struct PendingPairingTrust: Equatable {

QuickDrop.xcodeproj/project.pbxproj

@@ -20,13 +20,36 @@
 		A1B2C3D72F33AA0100ABC001 /* MirroredNotificationSupport.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1B2C3DA2F33AA0100ABC001 /* MirroredNotificationSupport.swift */; };
 		A1B2C3D82F33AA0100ABC001 /* MirroredNotificationSupport.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1B2C3DA2F33AA0100ABC001 /* MirroredNotificationSupport.swift */; };
 		A1B2C3D92F33AA0100ABC001 /* MirroredNotificationSupport.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1B2C3DA2F33AA0100ABC001 /* MirroredNotificationSupport.swift */; };
-		A1F5B3DB2F3A1A0100A1B2C6 /* NotificationSyncPairingToken.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D82F3A1A0100A1B2C3 /* NotificationSyncPairingToken.swift */; };
+		A1C0DE112F4C000100ABC001 /* ClipboardSyncCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1C0DE102F4C000100ABC001 /* ClipboardSyncCoordinator.swift */; };
-		A1F5B3DC2F3A1A0100A1B2C7 /* NotificationSyncPairingToken.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D82F3A1A0100A1B2C3 /* NotificationSyncPairingToken.swift */; };
+		A1C0DE122F4C000100ABC001 /* ClipboardSyncCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1C0DE102F4C000100ABC001 /* ClipboardSyncCoordinator.swift */; };
-		A1F5B3DD2F3A1A0100A1B2C8 /* NotificationSyncQrSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D92F3A1A0100A1B2C4 /* NotificationSyncQrSheetManager.swift */; };
+		A1C0DE132F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1C0DE152F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift */; };
-		A1F5B3DE2F3A1A0100A1B2C9 /* NotificationSyncQrSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D92F3A1A0100A1B2C4 /* NotificationSyncQrSheetManager.swift */; };
+		A1C0DE142F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1C0DE152F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift */; };
+		A1F5B3DB2F3A1A0100A1B2C6 /* PairingToken.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D82F3A1A0100A1B2C3 /* PairingToken.swift */; };
+		A1F5B3DC2F3A1A0100A1B2C7 /* PairingToken.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D82F3A1A0100A1B2C3 /* PairingToken.swift */; };
+		A1F5B3DD2F3A1A0100A1B2C8 /* PairingQrSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D92F3A1A0100A1B2C4 /* PairingQrSheetManager.swift */; };
+		A1F5B3DE2F3A1A0100A1B2C9 /* PairingQrSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D92F3A1A0100A1B2C4 /* PairingQrSheetManager.swift */; };
+		A3D000000000000000000202 /* BluetoothPermissionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A3D000000000000000000002 /* BluetoothPermissionManager.swift */; };
+		A3D000000000000000000203 /* BluetoothPermissionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A3D000000000000000000002 /* BluetoothPermissionManager.swift */; };
+		A6D000000000000000000101 /* AndroidAirDropModeDetector.swift in Sources */ = {isa = PBXBuildFile; fileRef = A6D000000000000000000001 /* AndroidAirDropModeDetector.swift */; };
+		A6D000000000000000000102 /* AndroidAirDropModeDetector.swift in Sources */ = {isa = PBXBuildFile; fileRef = A6D000000000000000000001 /* AndroidAirDropModeDetector.swift */; };
+		A6D000000000000000000201 /* AndroidAirDropModeDetectorTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = A6D000000000000000000002 /* AndroidAirDropModeDetectorTests.swift */; };
+		A7D000000000000000000101 /* AndroidAirDropModeIssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */; };
+		A7D000000000000000000102 /* AndroidAirDropModeIssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */; };
+		A7D000000000000000000103 /* AndroidAirDropModeIssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */; };
+		A7D000000000000000000104 /* AndroidAirDropModeIssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */; };
+		A8D000000000000000000101 /* BluetoothPermissionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A3D000000000000000000002 /* BluetoothPermissionManager.swift */; };
+		A8D000000000000000000102 /* AndroidAirDropModeDetector.swift in Sources */ = {isa = PBXBuildFile; fileRef = A6D000000000000000000001 /* AndroidAirDropModeDetector.swift */; };
+		A8D000000000000000000103 /* AndroidAirDropModeIssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */; };
+		A8D000000000000000000104 /* IssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = EBC05C7F2E33B58300EECC18 /* IssueView.swift */; };
 		EB05DFBE2E59FC8900EF567A /* TrustedDevicesView.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB05DFBD2E59FC8000EF567A /* TrustedDevicesView.swift */; };
 		EB05DFBF2E59FD0A00EF567A /* TrustedDevicesView.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB05DFBD2E59FC8000EF567A /* TrustedDevicesView.swift */; };
 		EB05DFC02E5A2EAA00EF567A /* TrustedDevicesView.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB05DFBD2E59FC8000EF567A /* TrustedDevicesView.swift */; };
+		EB0A22E32FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */; };
+		EB0A22E42FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */; };
+		EB0A22E52FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */; };
+		EB0A22E62FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */; };
+		EB0A22E72FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */; };
+		EB0A22E82FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */; };
 		EB1325D32E701D8E00FD749C /* Settings.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB1325D22E701D8900FD749C /* Settings.swift */; };
 		EB1325D42E701D8E00FD749C /* Settings.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB1325D22E701D8900FD749C /* Settings.swift */; };
 		EB1325D52E701D8E00FD749C /* Settings.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB1325D22E701D8900FD749C /* Settings.swift */; };
@@ -80,6 +103,7 @@
 		EB3B9F172EF7150400D6704E /* InboundNearbyConnection.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2229E17F0400A442DA /* InboundNearbyConnection.swift */; };
 		EB3B9F182EF7150400D6704E /* NearbyConnectionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A1E29E0C0B300A442DA /* NearbyConnectionManager.swift */; };
 		EB3B9F192EF7150400D6704E /* Configuration.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB979F8D2E50CA23008B8C5C /* Configuration.swift */; };
+		EB3B9F192EF7150400D6704F /* NearbyDeviceNameResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB3B9F192EF7150400D67050 /* NearbyDeviceNameResolver.swift */; };
 		EB3B9F1A2EF7150400D6704E /* AttachmentDetails.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB950B762E521712002D68FA /* AttachmentDetails.swift */; };
 		EB3B9F1B2EF7150400D6704E /* HKDF.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB886E512E4E19390052B7D9 /* HKDF.swift */; };
 		EB3B9F1C2EF7150400D6704E /* SmallSheetView.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB96ED8A2D7F7CF4004B3FF1 /* SmallSheetView.swift */; };
@@ -148,6 +172,7 @@
 		EB3B9F6D2EF7151900D6704E /* InboundNearbyConnection.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2229E17F0400A442DA /* InboundNearbyConnection.swift */; };
 		EB3B9F6E2EF7151900D6704E /* NearbyConnectionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A1E29E0C0B300A442DA /* NearbyConnectionManager.swift */; };
 		EB3B9F6F2EF7151900D6704E /* Helpers.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB2F9BFA2DA04B67004010A2 /* Helpers.swift */; };
+		EB3B9F6F2EF7151900D6704F /* NearbyDeviceNameResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB3B9F192EF7150400D67050 /* NearbyDeviceNameResolver.swift */; };
 		EB3B9F702EF7151900D6704E /* ApIsolationTester.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB1325E92E7025D900FD749C /* ApIsolationTester.swift */; };
 		EB3B9F712EF7151900D6704E /* ActiveNetworkInterface.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB1325E72E7025D900FD749C /* ActiveNetworkInterface.swift */; };
 		EB3B9F722EF7151900D6704E /* ApIsolation6Tester.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB1325E82E7025D900FD749C /* ApIsolation6Tester.swift */; };
@@ -199,11 +224,13 @@
 		EB5C37CD2E377A7F0052EFD7 /* OutboundNearbyConnection.swift in Sources */ = {isa = PBXBuildFile; fileRef = 691F53BD2ABF03820089FD92 /* OutboundNearbyConnection.swift */; };
 		EB5C37CE2E377A7F0052EFD7 /* InboundNearbyConnection.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2229E17F0400A442DA /* InboundNearbyConnection.swift */; };
 		EB5C37CF2E377A7F0052EFD7 /* NearbyConnectionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A1E29E0C0B300A442DA /* NearbyConnectionManager.swift */; };
+		EB5C37CF2E377A7F0052EFD8 /* NearbyDeviceNameResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB3B9F192EF7150400D67050 /* NearbyDeviceNameResolver.swift */; };
 		EB5C37D02E377A7F0052EFD7 /* OutboundNearbyConnection.swift in Sources */ = {isa = PBXBuildFile; fileRef = 691F53BD2ABF03820089FD92 /* OutboundNearbyConnection.swift */; };
 		EB5C37D12E377A7F0052EFD7 /* DataModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB5C36E82E3546100052EFD7 /* DataModel.swift */; };
 		EB5C37D22E377A7F0052EFD7 /* NearbyConnection.swift in Sources */ = {isa = PBXBuildFile; fileRef = 698DFAE529E2F91A0064F247 /* NearbyConnection.swift */; };
 		EB5C37D32E377A7F0052EFD7 /* InboundNearbyConnection.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2229E17F0400A442DA /* InboundNearbyConnection.swift */; };
 		EB5C37D42E377A7F0052EFD7 /* NearbyConnectionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A1E29E0C0B300A442DA /* NearbyConnectionManager.swift */; };
+		EB5C37D42E377A7F0052EFD8 /* NearbyDeviceNameResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB3B9F192EF7150400D67050 /* NearbyDeviceNameResolver.swift */; };
 		EB5C37D62E377ACF0052EFD7 /* SwiftProtobuf in Frameworks */ = {isa = PBXBuildFile; productRef = EB5C37D52E377ACF0052EFD7 /* SwiftProtobuf */; };
 		EB5C37D82E377ACF0052EFD7 /* SwiftECC in Frameworks */ = {isa = PBXBuildFile; productRef = EB5C37D72E377ACF0052EFD7 /* SwiftECC */; };
 		EB5C37DA2E377AD60052EFD7 /* SwiftProtobuf in Frameworks */ = {isa = PBXBuildFile; productRef = EB5C37D92E377AD60052EFD7 /* SwiftProtobuf */; };
@@ -213,6 +240,7 @@
 		EB5C37F12E377CE70052EFD7 /* ukey.pb.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2829E18CB500A442DA /* ukey.pb.swift */; };
 		EB5C37F22E377CE70052EFD7 /* NearbyConnection.swift in Sources */ = {isa = PBXBuildFile; fileRef = 698DFAE529E2F91A0064F247 /* NearbyConnection.swift */; };
 		EB5C37F42E377CE70052EFD7 /* NearbyConnectionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A1E29E0C0B300A442DA /* NearbyConnectionManager.swift */; };
+		EB5C37F42E377CE70052EFD8 /* NearbyDeviceNameResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB3B9F192EF7150400D67050 /* NearbyDeviceNameResolver.swift */; };
 		EB5C37F52E377CE70052EFD7 /* securemessage.pb.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2D29E18CB500A442DA /* securemessage.pb.swift */; };
 		EB5C37F62E377CE70052EFD7 /* device_to_device_messages.pb.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2A29E18CB500A442DA /* device_to_device_messages.pb.swift */; };
 		EB5C37F82E377CE70052EFD7 /* SleepManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB2B41E32DC63AC80070FC39 /* SleepManager.swift */; };
@@ -231,6 +259,10 @@
 		EB5C383F2E38C49D0052EFD7 /* LaunchAtLogin.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB5C383E2E38C49D0052EFD7 /* LaunchAtLogin.swift */; };
 		EB5C38402E38C49D0052EFD7 /* LaunchAtLogin.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB5C383E2E38C49D0052EFD7 /* LaunchAtLogin.swift */; };
 		EB5C38412E38C49D0052EFD7 /* LaunchAtLogin.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB5C383E2E38C49D0052EFD7 /* LaunchAtLogin.swift */; };
+		EB63EDB72FF42390000CC61F /* ModelessAlertPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB63EDB62FF42390000CC61F /* ModelessAlertPresenter.swift */; };
+		EB63EDB92FF42390000CC61F /* ModelessAlertPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB63EDB62FF42390000CC61F /* ModelessAlertPresenter.swift */; };
+		EB63EDBA2FF42390000CC61F /* ModelessAlertPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB63EDB62FF42390000CC61F /* ModelessAlertPresenter.swift */; };
+		EB63EDBB2FF42390000CC61F /* ModelessAlertPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB63EDB62FF42390000CC61F /* ModelessAlertPresenter.swift */; };
 		EB6E51A52F2F9370006D9812 /* IntroductionSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB6E51A42F2F9370006D9812 /* IntroductionSheetManager.swift */; };
 		EB6E51A62F2F9370006D9812 /* IntroductionSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB6E51A42F2F9370006D9812 /* IntroductionSheetManager.swift */; };
 		EB6E51AB2F311ED4006D9812 /* QuickDropIcon.icon in Resources */ = {isa = PBXBuildFile; fileRef = EB721F232E75AFA900F2099F /* QuickDropIcon.icon */; };
@@ -285,6 +317,7 @@
 		EB950B502E520436002D68FA /* wire_format.pb.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2929E18CB500A442DA /* wire_format.pb.swift */; };
 		EB950B512E520436002D68FA /* securemessage.pb.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2D29E18CB500A442DA /* securemessage.pb.swift */; };
 		EB950B522E520436002D68FA /* NearbyConnectionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A1E29E0C0B300A442DA /* NearbyConnectionManager.swift */; };
+		EB950B522E520436002D68FB /* NearbyDeviceNameResolver.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB3B9F192EF7150400D67050 /* NearbyDeviceNameResolver.swift */; };
 		EB950B532E520436002D68FA /* ukey.pb.swift in Sources */ = {isa = PBXBuildFile; fileRef = 69DA9A2829E18CB500A442DA /* ukey.pb.swift */; };
 		EB950B542E520436002D68FA /* HKDF.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB886E512E4E19390052B7D9 /* HKDF.swift */; };
 		EB950B562E520436002D68FA /* DataModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = EB5C36E82E3546100052EFD7 /* DataModel.swift */; };
@@ -366,6 +399,13 @@
 			remoteGlobalIDString = 699DEBA02AB0573200115D22;
 			remoteInfo = ShareExtension;
 		};
+		E14627D44A6E1CA296A9A53D /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 69DA9A0629E0BF5100A442DA /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 69DA9A0D29E0BF5100A442DA;
+			remoteInfo = QuickDrop;
+		};
 		EB3B9F8C2EF7153000D6704E /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 69DA9A0629E0BF5100A442DA /* Project object */;
@@ -479,6 +519,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		156115A05E122702111639A0 /* QuickDropTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = QuickDropTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		691F53B92ABB70840089FD92 /* DeviceListCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeviceListCell.swift; sourceTree = "<group>"; };
 		691F53BA2ABB70840089FD92 /* DeviceListCell.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = DeviceListCell.xib; sourceTree = "<group>"; };
 		691F53BD2ABF03820089FD92 /* OutboundNearbyConnection.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OutboundNearbyConnection.swift; sourceTree = "<group>"; };
@@ -503,9 +544,16 @@
 		69DA9A2C29E18CB500A442DA /* securegcm.pb.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = securegcm.pb.swift; sourceTree = "<group>"; };
 		69DA9A2D29E18CB500A442DA /* securemessage.pb.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = securemessage.pb.swift; sourceTree = "<group>"; };
 		A1B2C3DA2F33AA0100ABC001 /* MirroredNotificationSupport.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MirroredNotificationSupport.swift; sourceTree = "<group>"; };
-		A1F5B3D82F3A1A0100A1B2C3 /* NotificationSyncPairingToken.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NotificationSyncPairingToken.swift; sourceTree = "<group>"; };
+		A1C0DE102F4C000100ABC001 /* ClipboardSyncCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ClipboardSyncCoordinator.swift; sourceTree = "<group>"; };
-		A1F5B3D92F3A1A0100A1B2C4 /* NotificationSyncQrSheetManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NotificationSyncQrSheetManager.swift; sourceTree = "<group>"; };
+		A1C0DE152F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ClipboardSyncNotificationPresenter.swift; sourceTree = "<group>"; };
+		A1F5B3D82F3A1A0100A1B2C3 /* PairingToken.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PairingToken.swift; sourceTree = "<group>"; };
+		A1F5B3D92F3A1A0100A1B2C4 /* PairingQrSheetManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PairingQrSheetManager.swift; sourceTree = "<group>"; };
+		A3D000000000000000000002 /* BluetoothPermissionManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BluetoothPermissionManager.swift; sourceTree = "<group>"; };
+		A6D000000000000000000001 /* AndroidAirDropModeDetector.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AndroidAirDropModeDetector.swift; sourceTree = "<group>"; };
+		A6D000000000000000000002 /* AndroidAirDropModeDetectorTests.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = AndroidAirDropModeDetectorTests.swift; sourceTree = "<group>"; };
+		A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AndroidAirDropModeIssueView.swift; sourceTree = "<group>"; };
 		EB05DFBD2E59FC8000EF567A /* TrustedDevicesView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TrustedDevicesView.swift; sourceTree = "<group>"; };
+		EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NearbyBonjourServiceResolver.swift; sourceTree = "<group>"; };
 		EB1325D22E701D8900FD749C /* Settings.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Settings.swift; sourceTree = "<group>"; };
 		EB1325E72E7025D900FD749C /* ActiveNetworkInterface.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActiveNetworkInterface.swift; sourceTree = "<group>"; };
 		EB1325E82E7025D900FD749C /* ApIsolation6Tester.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ApIsolation6Tester.swift; sourceTree = "<group>"; };
@@ -518,6 +566,7 @@
 		EB2B41E32DC63AC80070FC39 /* SleepManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SleepManager.swift; sourceTree = "<group>"; };
 		EB2F9BFA2DA04B67004010A2 /* Helpers.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Helpers.swift; sourceTree = "<group>"; };
 		EB36435F2D73A29F009CDFF8 /* AudioManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AudioManager.swift; sourceTree = "<group>"; };
+		EB3B9F192EF7150400D67050 /* NearbyDeviceNameResolver.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NearbyDeviceNameResolver.swift; sourceTree = "<group>"; };
 		EB3B9F482EF7150400D6704E /* QuickDropGitHub.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = QuickDropGitHub.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		EB3B9F492EF7150400D6704E /* QuickDrop copy-Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; name = "QuickDrop copy-Info.plist"; path = "/Users/leonboettger/QuickDrop Backup with git/QuickDrop copy-Info.plist"; sourceTree = "<absolute>"; };
 		EB3B9F892EF7151900D6704E /* QuickDropShareExtensionGitHub.appex */ = {isa = PBXFileReference; explicitFileType = "wrapper.app-extension"; includeInIndex = 0; path = QuickDropShareExtensionGitHub.appex; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -530,6 +579,7 @@
 		EB5C37E22E377C2E0052EFD7 /* QuickDropiOS.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = QuickDropiOS.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		EB5C38382E38C1F60052EFD7 /* justMaybe.mp3 */ = {isa = PBXFileReference; lastKnownFileType = audio.mp3; path = justMaybe.mp3; sourceTree = "<group>"; };
 		EB5C383E2E38C49D0052EFD7 /* LaunchAtLogin.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LaunchAtLogin.swift; sourceTree = "<group>"; };
+		EB63EDB62FF42390000CC61F /* ModelessAlertPresenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ModelessAlertPresenter.swift; sourceTree = "<group>"; };
 		EB6E51A42F2F9370006D9812 /* IntroductionSheetManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IntroductionSheetManager.swift; sourceTree = "<group>"; };
 		EB6E6B202ECBA95000E71D57 /* InfoPlist.xcstrings */ = {isa = PBXFileReference; lastKnownFileType = text.json.xcstrings; path = InfoPlist.xcstrings; sourceTree = "<group>"; };
 		EB6F62D62D91F4AC00534EC2 /* SettingsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SettingsView.swift; sourceTree = "<group>"; };
@@ -653,6 +703,13 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		F5F5F63DAC90375051BA9F4E /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
@@ -693,6 +750,7 @@
 				EBC05C8B2E33B59E00EECC18 /* Resources */,
 				EB3B9F492EF7150400D6704E /* QuickDrop copy-Info.plist */,
 				EB3B9F8A2EF7151900D6704E /* QuickDropShareExtension copy-Info.plist */,
+				9E6A957675D279417AA88926 /* QuickDropTests */,
 			);
 			sourceTree = "<group>";
 		};
@@ -705,6 +763,7 @@
 				EB950B2D2E52027F002D68FA /* iOSShareExtension.appex */,
 				EB3B9F482EF7150400D6704E /* QuickDropGitHub.app */,
 				EB3B9F892EF7151900D6704E /* QuickDropShareExtensionGitHub.appex */,
+				156115A05E122702111639A0 /* QuickDropTests.xctest */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -750,12 +809,20 @@
 			path = NearbyShare;
 			sourceTree = "<group>";
 		};
-		A1F5B3DA2F3A1A0100A1B2C5 /* NotificationSync */ = {
+		9E6A957675D279417AA88926 /* QuickDropTests */ = {
 			isa = PBXGroup;
 			children = (
-				A1F5B3D92F3A1A0100A1B2C4 /* NotificationSyncQrSheetManager.swift */,
+				A6D000000000000000000002 /* AndroidAirDropModeDetectorTests.swift */,
 			);
-			path = NotificationSync;
+			path = QuickDropTests;
+			sourceTree = "<group>";
+		};
+		A1F5B3DA2F3A1A0100A1B2C5 /* Pairing */ = {
+			isa = PBXGroup;
+			children = (
+				A1F5B3D92F3A1A0100A1B2C4 /* PairingQrSheetManager.swift */,
+			);
+			path = Pairing;
 			sourceTree = "<group>";
 		};
 		EB1325EA2E7025D900FD749C /* SelfTest */ = {
@@ -779,7 +846,7 @@
 				EB886E512E4E19390052B7D9 /* HKDF.swift */,
 				EB4F9D232EC27CF000A74A0F /* FileManager+DocumentsOpener.swift */,
 				EB2F9BFA2DA04B67004010A2 /* Helpers.swift */,
-				A1F5B3D82F3A1A0100A1B2C3 /* NotificationSyncPairingToken.swift */,
+				A1F5B3D82F3A1A0100A1B2C3 /* PairingToken.swift */,
 			);
 			path = Util;
 			sourceTree = "<group>";
@@ -788,6 +855,8 @@
 			isa = PBXGroup;
 			children = (
 				69DA9A1E29E0C0B300A442DA /* NearbyConnectionManager.swift */,
+				EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */,
+				EB3B9F192EF7150400D67050 /* NearbyDeviceNameResolver.swift */,
 				69DA9A2229E17F0400A442DA /* InboundNearbyConnection.swift */,
 				A1B2C3DA2F33AA0100ABC001 /* MirroredNotificationSupport.swift */,
 				691F53BD2ABF03820089FD92 /* OutboundNearbyConnection.swift */,
@@ -911,7 +980,7 @@
 				EB7654772E525ACC006B4AA3 /* MainMenu.xib */,
 				EB6E51A92F2F95EE006D9812 /* UserManual */,
 				EB6E51AA2F2F9606006D9812 /* Toast */,
-				A1F5B3DA2F3A1A0100A1B2C5 /* NotificationSync */,
+				A1F5B3DA2F3A1A0100A1B2C5 /* Pairing */,
 				EB6E51A82F2F95E0006D9812 /* Settings */,
 				EB6E51A72F2F95D0006D9812 /* Introduction */,
 				EBC05C812E33B58300EECC18 /* IssueViews */,
@@ -922,12 +991,17 @@
 		EBC05C6B2E33B57100EECC18 /* Util */ = {
 			isa = PBXGroup;
 			children = (
+				A3D000000000000000000002 /* BluetoothPermissionManager.swift */,
+				A1C0DE102F4C000100ABC001 /* ClipboardSyncCoordinator.swift */,
+				A1C0DE152F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift */,
 				EB1325F72E70287C00FD749C /* SendToExtension.swift */,
 				EB5C383E2E38C49D0052EFD7 /* LaunchAtLogin.swift */,
+				EB63EDB62FF42390000CC61F /* ModelessAlertPresenter.swift */,
 				EB886E662E4F2F7C0052B7D9 /* License.swift */,
 				EB6FE7D12EFEFB2700FF2BCF /* AllowedWorkMonitor.swift */,
 				EB36435F2D73A29F009CDFF8 /* AudioManager.swift */,
 				EBC05C5A2E33936C00EECC18 /* ErrorAlertHandler.swift */,
+				A6D000000000000000000001 /* AndroidAirDropModeDetector.swift */,
 				EB1325EA2E7025D900FD749C /* SelfTest */,
 			);
 			path = Util;
@@ -940,6 +1014,7 @@
 				EBC05C7E2E33B58300EECC18 /* FirewallIssueView.swift */,
 				EBC05C7F2E33B58300EECC18 /* IssueView.swift */,
 				EBC05C802E33B58300EECC18 /* NetworkFilterIssueView.swift */,
+				A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */,
 			);
 			path = IssueViews;
 			sourceTree = "<group>";
@@ -957,6 +1032,24 @@
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
+		32A98F34E7D10C21DC2EEA19 /* QuickDropTests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = B473F6C65C8455203EA5FD18 /* Build configuration list for PBXNativeTarget "QuickDropTests" */;
+			buildPhases = (
+				BECDC1522AF83179791FA522 /* Sources */,
+				F5F5F63DAC90375051BA9F4E /* Frameworks */,
+				36CE9ED35EE7975FAB802535 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				C4F698F843B0C498BFC216AB /* PBXTargetDependency */,
+			);
+			name = QuickDropTests;
+			productName = QuickDropTests;
+			productReference = 156115A05E122702111639A0 /* QuickDropTests.xctest */;
+			productType = "com.apple.product-type.bundle.unit-test";
+		};
 		699DEBA02AB0573200115D22 /* QuickDropShareExtension */ = {
 			isa = PBXNativeTarget;
 			buildConfigurationList = 699DEBB12AB0573200115D22 /* Build configuration list for PBXNativeTarget "QuickDropShareExtension" */;
@@ -1113,6 +1206,9 @@
 				LastSwiftUpdateCheck = 1640;
 				LastUpgradeCheck = 2600;
 				TargetAttributes = {
+					32A98F34E7D10C21DC2EEA19 = {
+						CreatedOnToolsVersion = 26.0;
+					};
 					699DEBA02AB0573200115D22 = {
 						CreatedOnToolsVersion = 14.3.1;
 					};
@@ -1172,11 +1268,19 @@
 				EB950B2C2E52027F002D68FA /* iOSShareExtension */,
 				EB3B9EF02EF7150400D6704E /* QuickDropGitHub */,
 				EB3B9F4A2EF7151900D6704E /* QuickDropShareExtensionGitHub */,
+				32A98F34E7D10C21DC2EEA19 /* QuickDropTests */,
 			);
 		};
 /* End PBXProject section */
 
 /* Begin PBXResourcesBuildPhase section */
+		36CE9ED35EE7975FAB802535 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		699DEB9F2AB0573200115D22 /* Resources */ = {
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -1288,14 +1392,17 @@
 				EBE5FF432EDB71810019B380 /* Configuration.swift in Sources */,
 				EB6FE7D42EFEFB2700FF2BCF /* AllowedWorkMonitor.swift in Sources */,
 				EBC05C872E33B58300EECC18 /* IssueView.swift in Sources */,
+				A7D000000000000000000103 /* AndroidAirDropModeIssueView.swift in Sources */,
 				EBC05C882E33B58300EECC18 /* FirewallIssueView.swift in Sources */,
 				EBC05C892E33B58300EECC18 /* ApIsolationIssueView.swift in Sources */,
+				EB63EDBB2FF42390000CC61F /* ModelessAlertPresenter.swift in Sources */,
 				699DEBA62AB0573200115D22 /* ShareViewController.swift in Sources */,
 				EB96ED8B2D7F7CF7004B3FF1 /* SmallSheetView.swift in Sources */,
 				EBCC27F92D80C9F90079C478 /* Zip.swift in Sources */,
 				EB5C37C52E377A780052EFD7 /* securemessage.pb.swift in Sources */,
 				EB5C37C62E377A780052EFD7 /* securegcm.pb.swift in Sources */,
 				EB5C37C72E377A780052EFD7 /* wire_format.pb.swift in Sources */,
+				EB0A22E42FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */,
 				EB5C37C82E377A780052EFD7 /* ukey.pb.swift in Sources */,
 				EB5C37C92E377A780052EFD7 /* device_to_device_messages.pb.swift in Sources */,
 				EB950B742E520957002D68FA /* Attachments.swift in Sources */,
@@ -1315,6 +1422,7 @@
 				EB5C37D32E377A7F0052EFD7 /* InboundNearbyConnection.swift in Sources */,
 				A1B2C3D42F33AA0100ABC001 /* MirroredNotificationSupport.swift in Sources */,
 				EB5C37D42E377A7F0052EFD7 /* NearbyConnectionManager.swift in Sources */,
+				EB5C37D42E377A7F0052EFD8 /* NearbyDeviceNameResolver.swift in Sources */,
 				EB5C37BD2E377A700052EFD7 /* Helpers.swift in Sources */,
 				EB1325EB2E7025D900FD749C /* ApIsolationTester.swift in Sources */,
 				EB1325EC2E7025D900FD749C /* ActiveNetworkInterface.swift in Sources */,
@@ -1337,6 +1445,8 @@
 				EB16B6182E58B4C8007D9792 /* TrustStore.swift in Sources */,
 				EBC05C5B2E33937200EECC18 /* ErrorAlertHandler.swift in Sources */,
 				EB1325D42E701D8E00FD749C /* Settings.swift in Sources */,
+				A3D000000000000000000202 /* BluetoothPermissionManager.swift in Sources */,
+				A6D000000000000000000101 /* AndroidAirDropModeDetector.swift in Sources */,
 				EB886E5D2E4F13EB0052B7D9 /* Zip.swift in Sources */,
 				EB5C37BF2E377A780052EFD7 /* ukey.pb.swift in Sources */,
 				EB5C37C02E377A780052EFD7 /* securemessage.pb.swift in Sources */,
@@ -1344,16 +1454,19 @@
 				EB5C37C22E377A780052EFD7 /* device_to_device_messages.pb.swift in Sources */,
 				EB5C37C32E377A780052EFD7 /* wire_format.pb.swift in Sources */,
 				EB16B6152E58B4B9007D9792 /* IdentityManager.swift in Sources */,
+				EB63EDB92FF42390000CC61F /* ModelessAlertPresenter.swift in Sources */,
 				EB5C37C42E377A780052EFD7 /* securegcm.pb.swift in Sources */,
 				EB97A0102E51CD13008B8C5C /* ReceiveModel.swift in Sources */,
-				A1F5B3DD2F3A1A0100A1B2C8 /* NotificationSyncQrSheetManager.swift in Sources */,
+				A1F5B3DD2F3A1A0100A1B2C8 /* PairingQrSheetManager.swift in Sources */,
-				A1F5B3DB2F3A1A0100A1B2C6 /* NotificationSyncPairingToken.swift in Sources */,
+				A1F5B3DB2F3A1A0100A1B2C6 /* PairingToken.swift in Sources */,
 				EB5C37CB2E377A7F0052EFD7 /* NearbyConnection.swift in Sources */,
 				EB5C37CC2E377A7F0052EFD7 /* DataModel.swift in Sources */,
 				EB5C37CD2E377A7F0052EFD7 /* OutboundNearbyConnection.swift in Sources */,
 				EB5C37CE2E377A7F0052EFD7 /* InboundNearbyConnection.swift in Sources */,
 				A1B2C3D52F33AA0100ABC001 /* MirroredNotificationSupport.swift in Sources */,
+				A1C0DE132F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift in Sources */,
 				EB5C37CF2E377A7F0052EFD7 /* NearbyConnectionManager.swift in Sources */,
+				EB5C37CF2E377A7F0052EFD8 /* NearbyDeviceNameResolver.swift in Sources */,
 				EBE5FF422EDB6F6F0019B380 /* Configuration.swift in Sources */,
 				EB7654A12E53252D006B4AA3 /* AttachmentDetails.swift in Sources */,
 				EB886E522E4E19390052B7D9 /* HKDF.swift in Sources */,
@@ -1370,13 +1483,24 @@
 				EB6FE7D62EFEFB2700FF2BCF /* AllowedWorkMonitor.swift in Sources */,
 				EBC05C822E33B58300EECC18 /* ApIsolationIssueView.swift in Sources */,
 				EBC05C832E33B58300EECC18 /* FirewallIssueView.swift in Sources */,
+				A7D000000000000000000101 /* AndroidAirDropModeIssueView.swift in Sources */,
 				EB1325FA2E70288300FD749C /* SendToExtension.swift in Sources */,
+				EB0A22E72FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */,
 				EB1325F42E7025D900FD749C /* ApIsolationTester.swift in Sources */,
 				EB1325F52E7025D900FD749C /* ActiveNetworkInterface.swift in Sources */,
 				EB1325F62E7025D900FD749C /* ApIsolation6Tester.swift in Sources */,
 				EBC05C842E33B58300EECC18 /* IssueView.swift in Sources */,
 				EBC05C852E33B58300EECC18 /* NetworkFilterIssueView.swift in Sources */,
 				EB7A95F42EF6E1BE0021111B /* IntroductionView.swift in Sources */,
+				A1C0DE112F4C000100ABC001 /* ClipboardSyncCoordinator.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		BECDC1522AF83179791FA522 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				A6D000000000000000000201 /* AndroidAirDropModeDetectorTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -1394,6 +1518,8 @@
 				EB3B9F082EF7150400D6704E /* TrustStore.swift in Sources */,
 				EB3B9F092EF7150400D6704E /* ErrorAlertHandler.swift in Sources */,
 				EB3B9F0A2EF7150400D6704E /* Settings.swift in Sources */,
+				A3D000000000000000000203 /* BluetoothPermissionManager.swift in Sources */,
+				A6D000000000000000000102 /* AndroidAirDropModeDetector.swift in Sources */,
 				EB3B9F0B2EF7150400D6704E /* Zip.swift in Sources */,
 				EB3B9F0C2EF7150400D6704E /* ukey.pb.swift in Sources */,
 				EB3B9F0D2EF7150400D6704E /* securemessage.pb.swift in Sources */,
@@ -1401,16 +1527,19 @@
 				EB3B9F0F2EF7150400D6704E /* device_to_device_messages.pb.swift in Sources */,
 				EB3B9F102EF7150400D6704E /* wire_format.pb.swift in Sources */,
 				EB3B9F112EF7150400D6704E /* IdentityManager.swift in Sources */,
+				EB63EDB72FF42390000CC61F /* ModelessAlertPresenter.swift in Sources */,
 				EB3B9F122EF7150400D6704E /* securegcm.pb.swift in Sources */,
 				EB3B9F132EF7150400D6704E /* ReceiveModel.swift in Sources */,
-				A1F5B3DE2F3A1A0100A1B2C9 /* NotificationSyncQrSheetManager.swift in Sources */,
+				A1F5B3DE2F3A1A0100A1B2C9 /* PairingQrSheetManager.swift in Sources */,
-				A1F5B3DC2F3A1A0100A1B2C7 /* NotificationSyncPairingToken.swift in Sources */,
+				A1F5B3DC2F3A1A0100A1B2C7 /* PairingToken.swift in Sources */,
 				EB3B9F142EF7150400D6704E /* NearbyConnection.swift in Sources */,
 				EB3B9F152EF7150400D6704E /* DataModel.swift in Sources */,
 				EB3B9F162EF7150400D6704E /* OutboundNearbyConnection.swift in Sources */,
 				EB3B9F172EF7150400D6704E /* InboundNearbyConnection.swift in Sources */,
 				A1B2C3D62F33AA0100ABC001 /* MirroredNotificationSupport.swift in Sources */,
+				A1C0DE142F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift in Sources */,
 				EB3B9F182EF7150400D6704E /* NearbyConnectionManager.swift in Sources */,
+				EB3B9F192EF7150400D6704F /* NearbyDeviceNameResolver.swift in Sources */,
 				EB3B9F192EF7150400D6704E /* Configuration.swift in Sources */,
 				EB3B9F1A2EF7150400D6704E /* AttachmentDetails.swift in Sources */,
 				EB3B9F1B2EF7150400D6704E /* HKDF.swift in Sources */,
@@ -1427,13 +1556,16 @@
 				EB6FE7D52EFEFB2700FF2BCF /* AllowedWorkMonitor.swift in Sources */,
 				EB3B9F272EF7150400D6704E /* ApIsolationIssueView.swift in Sources */,
 				EB3B9F282EF7150400D6704E /* FirewallIssueView.swift in Sources */,
+				A7D000000000000000000102 /* AndroidAirDropModeIssueView.swift in Sources */,
 				EB3B9F292EF7150400D6704E /* SendToExtension.swift in Sources */,
+				EB0A22E82FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */,
 				EB3B9F2A2EF7150400D6704E /* ApIsolationTester.swift in Sources */,
 				EB3B9F2B2EF7150400D6704E /* ActiveNetworkInterface.swift in Sources */,
 				EB3B9F2C2EF7150400D6704E /* ApIsolation6Tester.swift in Sources */,
 				EB3B9F2D2EF7150400D6704E /* IssueView.swift in Sources */,
 				EB3B9F2E2EF7150400D6704E /* NetworkFilterIssueView.swift in Sources */,
 				EB3B9F2F2EF7150400D6704E /* IntroductionView.swift in Sources */,
+				A1C0DE122F4C000100ABC001 /* ClipboardSyncCoordinator.swift in Sources */,
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 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -1449,14 +1581,17 @@
 				EB3B9F522EF7151900D6704E /* Configuration.swift in Sources */,
 				EB6FE7D22EFEFB2700FF2BCF /* AllowedWorkMonitor.swift in Sources */,
 				EB3B9F532EF7151900D6704E /* IssueView.swift in Sources */,
+				A7D000000000000000000104 /* AndroidAirDropModeIssueView.swift in Sources */,
 				EB3B9F542EF7151900D6704E /* FirewallIssueView.swift in Sources */,
 				EB3B9F552EF7151900D6704E /* ApIsolationIssueView.swift in Sources */,
+				EB63EDBA2FF42390000CC61F /* ModelessAlertPresenter.swift in Sources */,
 				EB3B9F562EF7151900D6704E /* ShareViewController.swift in Sources */,
 				EB3B9F572EF7151900D6704E /* SmallSheetView.swift in Sources */,
 				EB3B9F582EF7151900D6704E /* Zip.swift in Sources */,
 				EB3B9F592EF7151900D6704E /* securemessage.pb.swift in Sources */,
 				EB3B9F5A2EF7151900D6704E /* securegcm.pb.swift in Sources */,
 				EB3B9F5B2EF7151900D6704E /* wire_format.pb.swift in Sources */,
+				EB0A22E52FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */,
 				EB3B9F5C2EF7151900D6704E /* ukey.pb.swift in Sources */,
 				EB3B9F5D2EF7151900D6704E /* device_to_device_messages.pb.swift in Sources */,
 				EB3B9F5F2EF7151900D6704E /* Attachments.swift in Sources */,
@@ -1476,6 +1611,7 @@
 				EB3B9F6D2EF7151900D6704E /* InboundNearbyConnection.swift in Sources */,
 				A1B2C3D72F33AA0100ABC001 /* MirroredNotificationSupport.swift in Sources */,
 				EB3B9F6E2EF7151900D6704E /* NearbyConnectionManager.swift in Sources */,
+				EB3B9F6F2EF7151900D6704F /* NearbyDeviceNameResolver.swift in Sources */,
 				EB3B9F6F2EF7151900D6704E /* Helpers.swift in Sources */,
 				EB3B9F702EF7151900D6704E /* ApIsolationTester.swift in Sources */,
 				EB3B9F712EF7151900D6704E /* ActiveNetworkInterface.swift in Sources */,
@@ -1496,13 +1632,17 @@
 				EB16B6142E58B4B9007D9792 /* IdentityManager.swift in Sources */,
 				EB886E672E4F2F800052B7D9 /* License.swift in Sources */,
 				EB5C37F42E377CE70052EFD7 /* NearbyConnectionManager.swift in Sources */,
+				EB5C37F42E377CE70052EFD8 /* NearbyDeviceNameResolver.swift in Sources */,
 				EB5C37F52E377CE70052EFD7 /* securemessage.pb.swift in Sources */,
 				EB5C37F62E377CE70052EFD7 /* device_to_device_messages.pb.swift in Sources */,
 				EB886E532E4E19390052B7D9 /* HKDF.swift in Sources */,
 				EB5C37F82E377CE70052EFD7 /* SleepManager.swift in Sources */,
 				EB5C37F92E377CE70052EFD7 /* securegcm.pb.swift in Sources */,
+				A8D000000000000000000101 /* BluetoothPermissionManager.swift in Sources */,
+				A8D000000000000000000102 /* AndroidAirDropModeDetector.swift in Sources */,
 				EB5C37FA2E377CE70052EFD7 /* Helpers.swift in Sources */,
 				EB5C37FB2E377CE70052EFD7 /* InboundNearbyConnection.swift in Sources */,
+				EB0A22E62FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */,
 				A1B2C3D82F33AA0100ABC001 /* MirroredNotificationSupport.swift in Sources */,
 				EB9925802E45D53E00357055 /* sharing_enums.pb.swift in Sources */,
 				EB5C37FC2E377CE70052EFD7 /* OutboundNearbyConnection.swift in Sources */,
@@ -1516,6 +1656,8 @@
 				EB979F942E50CA23008B8C5C /* Configuration.swift in Sources */,
 				EB979F952E50CA23008B8C5C /* ContentView.swift in Sources */,
 				EB6FE7CF2EFEB42800FF2BCF /* NoLocalNetworkAccessAlertView.swift in Sources */,
+				A8D000000000000000000103 /* AndroidAirDropModeIssueView.swift in Sources */,
+				A8D000000000000000000104 /* IssueView.swift in Sources */,
 				EBBEE1462EC9D93400AA7831 /* PhotoManager.swift in Sources */,
 				EB97A01A2E51EAA2008B8C5C /* UIAlert.swift in Sources */,
 				EB979F962E50CA23008B8C5C /* FilePicker.swift in Sources */,
@@ -1547,10 +1689,12 @@
 				EB16B6132E58B4B9007D9792 /* IdentityManager.swift in Sources */,
 				EB950B4D2E520436002D68FA /* NearbyConnection.swift in Sources */,
 				EB950B502E520436002D68FA /* wire_format.pb.swift in Sources */,
+				EB0A22E32FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */,
 				EB950B582E5205B4002D68FA /* Zip.swift in Sources */,
 				EB950B512E520436002D68FA /* securemessage.pb.swift in Sources */,
 				EBA1BB1F2EF1F6030068E46E /* ChangeDeviceNameModifier.swift in Sources */,
 				EB950B522E520436002D68FA /* NearbyConnectionManager.swift in Sources */,
+				EB950B522E520436002D68FB /* NearbyDeviceNameResolver.swift in Sources */,
 				EB950B532E520436002D68FA /* ukey.pb.swift in Sources */,
 				EBBC93B22EC8B76600F541A1 /* LocalNetworkPermissionView.swift in Sources */,
 				EB05DFC02E5A2EAA00EF567A /* TrustedDevicesView.swift in Sources */,
@@ -1582,6 +1726,12 @@
 			target = 699DEBA02AB0573200115D22 /* QuickDropShareExtension */;
 			targetProxy = 699DEBAC2AB0573200115D22 /* PBXContainerItemProxy */;
 		};
+		C4F698F843B0C498BFC216AB /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			name = QuickDrop;
+			target = 69DA9A0D29E0BF5100A442DA /* QuickDrop */;
+			targetProxy = E14627D44A6E1CA296A9A53D /* PBXContainerItemProxy */;
+		};
 		EB3B9F8D2EF7153000D6704E /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
 			target = EB3B9F4A2EF7151900D6704E /* QuickDropShareExtensionGitHub */;
@@ -1706,7 +1856,6 @@
 				RUNTIME_EXCEPTION_DISABLE_LIBRARY_VALIDATION = NO;
 				SKIP_INSTALL = YES;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = EXTENSION;
-				"SWIFT_ACTIVE_COMPILATION_CONDITIONS[arch=*]" = "";
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
 			};
@@ -1773,8 +1922,8 @@
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
-				SHARED_BUILD = 138;
+				SHARED_BUILD = 154;
-				SHARED_VERSION = 3.0;
+				SHARED_VERSION = 4.2.1;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_EMIT_LOC_STRINGS = YES;
@@ -1836,8 +1985,8 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = macosx;
-				SHARED_BUILD = 138;
+				SHARED_BUILD = 154;
-				SHARED_VERSION = 3.0;
+				SHARED_VERSION = 4.2.1;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_EMIT_LOC_STRINGS = YES;
@@ -1865,7 +2014,7 @@
 				ENABLE_INCOMING_NETWORK_CONNECTIONS = YES;
 				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
 				ENABLE_RESOURCE_ACCESS_AUDIO_INPUT = NO;
-				ENABLE_RESOURCE_ACCESS_BLUETOOTH = NO;
+				ENABLE_RESOURCE_ACCESS_BLUETOOTH = YES;
 				ENABLE_RESOURCE_ACCESS_CALENDARS = NO;
 				ENABLE_RESOURCE_ACCESS_CAMERA = NO;
 				ENABLE_RESOURCE_ACCESS_CONTACTS = NO;
@@ -1880,6 +2029,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
@@ -1930,7 +2081,7 @@
 				ENABLE_INCOMING_NETWORK_CONNECTIONS = YES;
 				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
 				ENABLE_RESOURCE_ACCESS_AUDIO_INPUT = NO;
-				ENABLE_RESOURCE_ACCESS_BLUETOOTH = NO;
+				ENABLE_RESOURCE_ACCESS_BLUETOOTH = YES;
 				ENABLE_RESOURCE_ACCESS_CALENDARS = NO;
 				ENABLE_RESOURCE_ACCESS_CAMERA = NO;
 				ENABLE_RESOURCE_ACCESS_CONTACTS = NO;
@@ -1945,6 +2096,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
@@ -1974,6 +2127,49 @@
 			};
 			name = Release;
 		};
+		9A4E1D6A03B4FDA5B2074DF0 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 92SDAWLN76;
+				GENERATE_INFOPLIST_FILE = YES;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+					"@loader_path/../Frameworks",
+				);
+				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.leonboettger.neardrop.tests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SDKROOT = macosx;
+				SWIFT_VERSION = 5.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/QuickDrop.app/Contents/MacOS/QuickDrop";
+			};
+			name = Release;
+		};
+		A8C87F63E411A0C639408AC5 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 92SDAWLN76;
+				GENERATE_INFOPLIST_FILE = YES;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+					"@loader_path/../Frameworks",
+				);
+				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.leonboettger.neardrop.tests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SDKROOT = macosx;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = "DEBUG $(inherited)";
+				SWIFT_VERSION = 5.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/QuickDrop.app/Contents/MacOS/QuickDrop";
+			};
+			name = Debug;
+		};
 		EB3B9F462EF7150400D6704E /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
@@ -1994,7 +2190,7 @@
 				ENABLE_INCOMING_NETWORK_CONNECTIONS = YES;
 				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
 				ENABLE_RESOURCE_ACCESS_AUDIO_INPUT = NO;
-				ENABLE_RESOURCE_ACCESS_BLUETOOTH = NO;
+				ENABLE_RESOURCE_ACCESS_BLUETOOTH = YES;
 				ENABLE_RESOURCE_ACCESS_CALENDARS = NO;
 				ENABLE_RESOURCE_ACCESS_CAMERA = NO;
 				ENABLE_RESOURCE_ACCESS_CONTACTS = NO;
@@ -2009,6 +2205,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
@@ -2060,7 +2258,7 @@
 				ENABLE_INCOMING_NETWORK_CONNECTIONS = YES;
 				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
 				ENABLE_RESOURCE_ACCESS_AUDIO_INPUT = NO;
-				ENABLE_RESOURCE_ACCESS_BLUETOOTH = NO;
+				ENABLE_RESOURCE_ACCESS_BLUETOOTH = YES;
 				ENABLE_RESOURCE_ACCESS_CALENDARS = NO;
 				ENABLE_RESOURCE_ACCESS_CAMERA = NO;
 				ENABLE_RESOURCE_ACCESS_CONTACTS = NO;
@@ -2075,6 +2273,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
@@ -2225,6 +2425,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSSupportsOpeningDocumentsInPlace = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSPhotoLibraryAddUsageDescription = "The add photos permission is required to save received photos and videos to your photo library.";
@@ -2270,6 +2472,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSSupportsOpeningDocumentsInPlace = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSPhotoLibraryAddUsageDescription = "The add photos permission is required to save received photos and videos to your photo library.";
@@ -2392,6 +2596,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		B473F6C65C8455203EA5FD18 /* Build configuration list for PBXNativeTarget "QuickDropTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9A4E1D6A03B4FDA5B2074DF0 /* Release */,
+				A8C87F63E411A0C639408AC5 /* Debug */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 		EB3B9F452EF7150400D6704E /* Build configuration list for PBXNativeTarget "QuickDropGitHub" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (

QuickDrop.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -33,8 +33,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/leif-ibsen/BigInt",
       "state" : {
-        "revision" : "8c6f93aa37504b7b1ba3954335b5548a19fbbd82",
+        "revision" : "7c7b1be2f6714ce03833879b0aab4b20293c0207",
-        "version" : "1.22.0"
+        "version" : "1.24.0"
       }
     },
     {
@@ -52,7 +52,7 @@
       "location" : "https://github.com/leonboe1/LUI.git",
       "state" : {
         "branch" : "main",
-        "revision" : "3582f59e758c39a849ab691f3fe26f7d0f618a94"
+        "revision" : "44013e8ef77d8e0d18e13f449cfe3775f1abb31a"
       }
     },
     {
@@ -87,8 +87,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-protobuf.git",
       "state" : {
-        "revision" : "a008af1a102ff3dd6cc3764bb69bf63226d0f5f6",
+        "revision" : "55d7a1cc5666b85c13464aea1c4b4a90feccb4c8",
-        "version" : "1.36.1"
+        "version" : "1.38.1"
       }
     },
     {
@@ -124,7 +124,7 @@
       "location" : "https://github.com/siteline/swiftui-introspect",
       "state" : {
         "branch" : "main",
-        "revision" : "26986a57e31c813f98262ddb62d4b07d40008535"
+        "revision" : "aee624c87acee41e1a421f7825b468d38bbfbd6c"
       }
     },
     {

QuickDrop.xcodeproj/xcshareddata/xcschemes/QuickDrop.xcscheme

@@ -40,6 +40,24 @@
       debugDocumentVersioning = "YES"
       debugServiceExtension = "internal"
       allowLocationSimulation = "YES">
+      <PostActions>
+         <ExecutionAction
+            ActionType = "Xcode.IDEStandardExecutionActionsCore.ExecutionActionType.ShellScriptAction">
+            <ActionContent
+               title = "Register dev QuickDrop for Finder Share"
+               scriptText = "&quot;${SRCROOT}/scripts/use-dev-share-extension.sh&quot;&#10;">
+               <EnvironmentBuildable>
+                  <BuildableReference
+                     BuildableIdentifier = "primary"
+                     BlueprintIdentifier = "69DA9A0D29E0BF5100A442DA"
+                     BuildableName = "QuickDrop.app"
+                     BlueprintName = "QuickDrop"
+                     ReferencedContainer = "container:QuickDrop.xcodeproj">
+                  </BuildableReference>
+               </EnvironmentBuildable>
+            </ActionContent>
+         </ExecutionAction>
+      </PostActions>
       <BuildableProductRunnable
          runnableDebuggingMode = "0">
          <BuildableReference

QuickDrop.xcodeproj/xcshareddata/xcschemes/QuickDropTests.xcscheme

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "2650"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      buildArchitectures = "Automatic">
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "32A98F34E7D10C21DC2EEA19"
+               BuildableName = "QuickDropTests.xctest"
+               BlueprintName = "QuickDropTests"
+               ReferencedContainer = "container:QuickDrop.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES"
+      queueDebuggingEnableBacktraceRecording = "Yes">
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

QuickDrop.xcodeproj/xcshareddata/xcschemes/QuickDropiOS.xcscheme

@@ -32,8 +32,8 @@
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedDebuggerIdentifier = ""
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      selectedLauncherIdentifier = "Xcode.IDEFoundation.Launcher.PosixSpawn"
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"

QuickDrop/AppDelegate.swift

@@ -7,6 +7,7 @@
 
 import AudioToolbox
 import BezelNotification
+import Combine
 import Cocoa
 import Network
 import StoreKit
@@ -27,14 +28,24 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
     private var errorAlertHandler = ErrorAlertHandler.shared
 
     private var receiveModel: ReceiveModel?
+    private var bluetoothAuthorizationObserver: AnyCancellable?
+    private let welcomeNavigationState = WelcomeScreenNavigationState()
 
     var showsFirewallAlert = false
     var visibleItem: NSMenuItem? = nil
+    private var didShowAndroidAirDropModeAlert = false
 
     
     // MARK: NSApplicationDelegate functions
     
     func applicationDidFinishLaunching(_: Notification) {
+        if ProcessInfo.processInfo.environment["XCTestConfigurationFilePath"] != nil {
+            LUIInit(configuration: configuration)
+            return
+        }
+
+        UNUserNotificationCenter.current().delegate = self
+
         // app did not lauch before
         if !Settings.sharedInstance.appLaunchedBefore {
             runAfter(seconds: 0.1) { log("[AppDelegate] Opening Welcome Screen") }
@@ -66,18 +77,16 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
             startReceiving()
         }
 
-        UNUserNotificationCenter.current().delegate = self
-        
-        
         // MARK: Menu Bar
         
         let menu = NSMenu()
 
         let visibleItem = NSMenuItem(
             title: getDefaultVisibleLabel(),
-            action: nil,
+            action: #selector(visibleMenuItemSelected),
             keyEquivalent: ""
         )
+        visibleItem.target = self
         self.visibleItem = visibleItem
         menu.addItem(visibleItem)
 
@@ -120,6 +129,9 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
             self.visibleItem?.title = self.getDefaultVisibleLabel()
         }
 
+        setupAndroidAirDropModeDetection()
+        requestBluetoothPermissionForExistingUserIfNeeded()
+        
         
         // MARK: Logging
         
@@ -131,6 +143,7 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
     func startReceiving() {
         guard receiveModel == nil else {
             log("[AppDelegate] startReceiving called while receiver is already active. Ignoring duplicate call.")
+            ClipboardSyncCoordinator.shared.start()
             return
         }
 
@@ -146,6 +159,8 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
                 }
             }
         })
+
+        ClipboardSyncCoordinator.shared.start()
     }
     
     
@@ -166,14 +181,20 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
     
 
     public func userNotificationCenter(_: UNUserNotificationCenter,
-                                       willPresent _: UNNotification,
+                                       willPresent notification: UNNotification,
                                        withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
+        if ClipboardSyncNotificationPresenter.isClipboardSyncNotification(notification) {
+            completionHandler([.banner])
+            return
+        }
         completionHandler([.sound, .banner])
     }
     
 
     func applicationWillTerminate(_: Notification) {
         UNUserNotificationCenter.current().removeAllDeliveredNotifications()
+        ClipboardSyncCoordinator.shared.stop()
+        AndroidAirDropModeDetector.shared.stop()
         NearbyConnectionManager.shared.stopDeviceDiscovery()
         NearbyConnectionManager.shared.becomeInvisible()
     }
@@ -225,6 +246,10 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
     
     // MARK: - Button Actions
 
+    @objc private func visibleMenuItemSelected() {
+        showMainWindow(selectedTab: .settings)
+    }
+    
     @objc func sendClipboard() {
        
         let pasteboard = NSPasteboard.general
@@ -242,6 +267,15 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
 
     
     @objc func openMainWindow() {
+        showMainWindow()
+    }
+    
+    
+    private func showMainWindow(selectedTab: Tab? = nil) {
+        if let selectedTab {
+            welcomeNavigationState.select(selectedTab)
+        }
+        
         defer {
             if let welcomeWindow, !Settings.sharedInstance.appLaunchedBefore {
                 runAfter(seconds: 0.2) {
@@ -268,7 +302,8 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
             openPlusScreen: openPlusScreen,
             openAppAdvertisementView: { self.openSheetView(type: .downloadAndroidApp) },
             openCableTransmissionView: { self.openSheetView(type: .downloadCableConnectionApp) },
-            checkForNetworkIssues: performDeviceToDeviceCheck
+            checkForNetworkIssues: performDeviceToDeviceCheck,
+            navigationState: welcomeNavigationState
         )
         
         welcomeWindow = NSWindow(
@@ -397,6 +432,58 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
         }
     }
 
+    private func setupAndroidAirDropModeDetection() {
+        log("[AppDelegate] Setting up Android AirDrop mode detection. authorization=\(BluetoothPermissionManager.shared.authorization.rawValue)")
+
+        bluetoothAuthorizationObserver = BluetoothPermissionManager.shared.$authorization
+            .removeDuplicates()
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] authorization in
+                guard let self else { return }
+
+                log("[AppDelegate] Bluetooth authorization changed for Android AirDrop mode detection: \(authorization.rawValue)")
+
+                if authorization == .allowedAlways {
+                    self.startAndroidAirDropModeDetection()
+                }
+                else {
+                    AndroidAirDropModeDetector.shared.stop()
+                }
+            }
+
+        BluetoothPermissionManager.shared.refresh()
+    }
+
+    private func requestBluetoothPermissionForExistingUserIfNeeded() {
+        let bluetoothPermission = BluetoothPermissionManager.shared
+        bluetoothPermission.refresh()
+
+        guard Settings.sharedInstance.appLaunchedBefore, bluetoothPermission.canRequestPermission else { return }
+
+        log("[AppDelegate] Requesting Bluetooth permission for existing user.")
+
+        bluetoothPermission.requestPermission { allowed in
+            log("[AppDelegate] Existing user Bluetooth permission request completed. allowed=\(allowed)")
+        }
+    }
+
+    private func startAndroidAirDropModeDetection() {
+        guard !didShowAndroidAirDropModeAlert else { return }
+
+        AndroidAirDropModeDetector.shared.start { [weak self] _ in
+            DispatchQueue.main.async {
+                self?.showAndroidAirDropModeAlertIfNeeded()
+            }
+        }
+    }
+
+    private func showAndroidAirDropModeAlertIfNeeded() {
+        guard !didShowAndroidAirDropModeAlert else { return }
+
+        didShowAndroidAirDropModeAlert = true
+        ErrorAlertHandler.shared.openAlert(type: .AndroidAirDropMode)
+    }
+    
     
     private func getDefaultVisibleLabel() -> String {
         let name = NearbyConnectionManager.shared.deviceInfo.name ?? "Unknown".localized()

QuickDrop/Assets.xcassets/Smartphone.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "Smartphone.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

QuickDrop/Configuration.swift

@@ -11,11 +11,21 @@ import SwiftUI
 let configuration = LUIConfiguration(
     appName: "QuickDrop",
     
-    plusVersionInfo: GetPlusViewInformation(lifetimeID: "plusversion", monthlyID: "quickdrop.monthly", yearlyID: "quickdrop.yearly", plusViewHeader: isMac() ? "plusview_title" : nil, description: isMac() ? "plusview_description" : "plusview_description_phone", onBoughtPlusVersionAlertMessage: "plusview_success_description", plusVersionFeatures: [], settingsLabelColor: .orange, settingsFooter: "plusview_footer_phone"),
+    plusVersionInfo: GetPlusViewInformation(
+        lifetimeID: "plusversion",
+        monthlyID: "quickdrop.monthly",
+        yearlyID: "quickdrop.yearly",
+        plusViewHeader: isMac() ? "plusview_title" : nil,
+        description: isMac() ? "plusview_description" : "plusview_description_phone",
+        onBoughtPlusVersionAlertMessage: "plusview_success_description",
+        plusVersionFeatures: [],
+        settingsLabelColor: .orange,
+        settingsFooter: "plusview_footer_phone"
+    ),
     
     hasRoundedFont: false,
     
-    switchedToIAPafterBundleVersion: AppVersionBundle(appVersion: "1.2", buildVersion: 0, legacyUserDefaultsKey: Settings.UserDefaultsKeys.plusVersionLegacy.rawValue),
+    switchedToInAppPurchaseWithBundleVersion: AppVersionBundle(appVersion: "1.2", buildVersion: 0, legacyUserDefaultsKey: Settings.UserDefaultsKeys.plusVersionLegacy.rawValue),
     
     copyrightInformation: licenseText,
     
@@ -37,5 +47,12 @@ let configuration = LUIConfiguration(
     
     supportsPortraitSplitView: false,
     
-    supportsDarkModeShadow: true
+    supportsDarkModeShadow: false,
+    
+    privacyPolicyURL: .privacyPolicyURL
 )
+
+
+extension String {
+    static let privacyPolicyURL = "https://leonboettger.com/quickdrop-privacy"
+}

QuickDrop/InfoPlist.xcstrings

@@ -27,6 +27,472 @@
       },
       "shouldTranslate" : false
     },
+    "NSBluetoothAlwaysUsageDescription" : {
+      "comment" : "Privacy - Bluetooth Always Usage Description",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "يستخدم QuickDrop تقنية Bluetooth لتحسين اكتشاف الأجهزة القريبة."
+          }
+        },
+        "ca" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilitza Bluetooth per millorar la detecció de dispositius propers."
+          }
+        },
+        "cs" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop používá Bluetooth pro vylepšenou detekci zařízení v okolí."
+          }
+        },
+        "da" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruger Bluetooth til forbedret registrering af enheder i nærheden."
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop verwendet Bluetooth für eine verbesserte Erkennung von Geräten in der Nähe."
+          }
+        },
+        "el" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Το QuickDrop χρησιμοποιεί Bluetooth για βελτιωμένο εντοπισμό κοντινών συσκευών."
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-AU" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-GB" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "es-419" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "fi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop käyttää Bluetoothia läheisten laitteiden parempaan havaitsemiseen."
+          }
+        },
+        "fr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "he" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop משתמש ב-Bluetooth לזיהוי משופר של מכשירים בקרבת מקום."
+          }
+        },
+        "hi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop आस-पास के डिवाइस की बेहतर पहचान के लिए Bluetooth का उपयोग करता है।"
+          }
+        },
+        "hr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop koristi Bluetooth za poboljšano otkrivanje uređaja u blizini."
+          }
+        },
+        "hu" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "A QuickDrop Bluetoothot használ a közeli eszközök fejlettebb felismeréséhez."
+          }
+        },
+        "id" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk deteksi perangkat terdekat yang lebih baik."
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa il Bluetooth per un rilevamento migliorato dei dispositivi nelle vicinanze."
+          }
+        },
+        "ja" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDropは、近くのデバイスをより正確に検出するためにBluetoothを使用します。"
+          }
+        },
+        "ko" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop은 주변 기기를 더 잘 감지하기 위해 Bluetooth를 사용합니다."
+          }
+        },
+        "ms" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk pengesanan peranti berdekatan yang dipertingkatkan."
+          }
+        },
+        "nb" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruker Bluetooth for forbedret oppdagelse av enheter i nærheten."
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop gebruikt Bluetooth voor verbeterde detectie van apparaten in de buurt."
+          }
+        },
+        "pl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop używa Bluetooth do ulepszonego wykrywania pobliskich urządzeń."
+          }
+        },
+        "pt-BR" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a detecção de dispositivos próximos."
+          }
+        },
+        "pt-PT" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a deteção de dispositivos próximos."
+          }
+        },
+        "ro" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop folosește Bluetooth pentru detectarea îmbunătățită a dispozitivelor din apropiere."
+          }
+        },
+        "ru" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop использует Bluetooth для улучшенного обнаружения устройств поблизости."
+          }
+        },
+        "sv" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop använder Bluetooth för förbättrad upptäckt av enheter i närheten."
+          }
+        },
+        "th" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop ใช้ Bluetooth เพื่อการตรวจจับอุปกรณ์ใกล้เคียงที่ดียิ่งขึ้น"
+          }
+        },
+        "tr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop, yakındaki cihazları daha iyi algılamak için Bluetooth kullanır."
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop використовує Bluetooth для покращеного виявлення пристроїв поблизу."
+          }
+        },
+        "vi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop sử dụng Bluetooth để phát hiện thiết bị lân cận tốt hơn."
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用蓝牙来增强附近设备检测。"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用藍牙來增強附近裝置偵測。"
+          }
+        }
+      }
+    },
+    "NSBluetoothPeripheralUsageDescription" : {
+      "comment" : "Privacy - Bluetooth Peripheral Usage Description",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "يستخدم QuickDrop تقنية Bluetooth لتحسين اكتشاف الأجهزة القريبة."
+          }
+        },
+        "ca" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilitza Bluetooth per millorar la detecció de dispositius propers."
+          }
+        },
+        "cs" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop používá Bluetooth pro vylepšenou detekci zařízení v okolí."
+          }
+        },
+        "da" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruger Bluetooth til forbedret registrering af enheder i nærheden."
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop verwendet Bluetooth für eine verbesserte Erkennung von Geräten in der Nähe."
+          }
+        },
+        "el" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Το QuickDrop χρησιμοποιεί Bluetooth για βελτιωμένο εντοπισμό κοντινών συσκευών."
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-AU" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-GB" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "es-419" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "fi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop käyttää Bluetoothia läheisten laitteiden parempaan havaitsemiseen."
+          }
+        },
+        "fr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "he" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop משתמש ב-Bluetooth לזיהוי משופר של מכשירים בקרבת מקום."
+          }
+        },
+        "hi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop आस-पास के डिवाइस की बेहतर पहचान के लिए Bluetooth का उपयोग करता है।"
+          }
+        },
+        "hr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop koristi Bluetooth za poboljšano otkrivanje uređaja u blizini."
+          }
+        },
+        "hu" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "A QuickDrop Bluetoothot használ a közeli eszközök fejlettebb felismeréséhez."
+          }
+        },
+        "id" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk deteksi perangkat terdekat yang lebih baik."
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa il Bluetooth per un rilevamento migliorato dei dispositivi nelle vicinanze."
+          }
+        },
+        "ja" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDropは、近くのデバイスをより正確に検出するためにBluetoothを使用します。"
+          }
+        },
+        "ko" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop은 주변 기기를 더 잘 감지하기 위해 Bluetooth를 사용합니다."
+          }
+        },
+        "ms" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk pengesanan peranti berdekatan yang dipertingkatkan."
+          }
+        },
+        "nb" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruker Bluetooth for forbedret oppdagelse av enheter i nærheten."
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop gebruikt Bluetooth voor verbeterde detectie van apparaten in de buurt."
+          }
+        },
+        "pl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop używa Bluetooth do ulepszonego wykrywania pobliskich urządzeń."
+          }
+        },
+        "pt-BR" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a detecção de dispositivos próximos."
+          }
+        },
+        "pt-PT" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a deteção de dispositivos próximos."
+          }
+        },
+        "ro" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop folosește Bluetooth pentru detectarea îmbunătățită a dispozitivelor din apropiere."
+          }
+        },
+        "ru" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop использует Bluetooth для улучшенного обнаружения устройств поблизости."
+          }
+        },
+        "sv" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop använder Bluetooth för förbättrad upptäckt av enheter i närheten."
+          }
+        },
+        "th" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop ใช้ Bluetooth เพื่อการตรวจจับอุปกรณ์ใกล้เคียงที่ดียิ่งขึ้น"
+          }
+        },
+        "tr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop, yakındaki cihazları daha iyi algılamak için Bluetooth kullanır."
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop використовує Bluetooth для покращеного виявлення пристроїв поблизу."
+          }
+        },
+        "vi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop sử dụng Bluetooth để phát hiện thiết bị lân cận tốt hơn."
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用蓝牙来增强附近设备检测。"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用藍牙來增強附近裝置偵測。"
+          }
+        }
+      }
+    },
     "NSHumanReadableCopyright" : {
       "comment" : "Copyright (human-readable)",
       "extractionState" : "extracted_with_value",

QuickDrop/Util/AndroidAirDropModeDetector.swift

@@ -0,0 +1,259 @@
+//
+//  AndroidAirDropModeDetector.swift
+//  QuickDrop
+//
+//  Created by Leon Böttger on 10.06.26.
+//
+
+import CoreBluetooth
+import Foundation
+import LUI
+
+struct AndroidAirDropAdvertisement: Equatable {
+    let rssi: Int
+    let manufacturerDataHex: String?
+    let serviceUUIDs: Set<String>
+    let serviceDataHexByUUID: [String: String]
+    let isConnectable: Bool?
+
+    init(
+        rssi: Int,
+        manufacturerDataHex: String?,
+        serviceUUIDs: Set<String>,
+        serviceDataHexByUUID: [String: String] = [:],
+        isConnectable: Bool? = nil
+    ) {
+        self.rssi = rssi
+        self.manufacturerDataHex = manufacturerDataHex?.lowercased()
+        self.serviceUUIDs = Set(serviceUUIDs.map { $0.uppercased() })
+        self.serviceDataHexByUUID = Dictionary(
+            uniqueKeysWithValues: serviceDataHexByUUID.map { ($0.key.uppercased(), $0.value.lowercased()) }
+        )
+        self.isConnectable = isConnectable
+    }
+}
+
+struct AndroidAirDropModeObservation: Equatable {
+    let airDropModePacketCount: Int
+    let strongestAirDropModeRSSI: Int?
+    let minimumRSSI: Int
+    let requiredPacketsPerSignal: Int
+
+    var isDetected: Bool {
+        airDropModePacketCount >= requiredPacketsPerSignal
+    }
+}
+
+struct AndroidAirDropModeClassifier {
+    static let defaultMinimumRSSI = -70
+    static let defaultRequiredPacketsPerSignal = 2
+
+    static let airDropModeManufacturerPrefix = "4c000512000000000000000001"
+    static let airDropModeServiceUUID = "FCF1"
+
+    let minimumRSSI: Int
+    let requiredPacketsPerSignal: Int
+
+    private(set) var airDropModePacketCount = 0
+    private(set) var strongestAirDropModeRSSI: Int?
+
+    init(
+        minimumRSSI: Int = Self.defaultMinimumRSSI,
+        requiredPacketsPerSignal: Int = Self.defaultRequiredPacketsPerSignal
+    ) {
+        self.minimumRSSI = minimumRSSI
+        self.requiredPacketsPerSignal = requiredPacketsPerSignal
+    }
+
+    var observation: AndroidAirDropModeObservation {
+        AndroidAirDropModeObservation(
+            airDropModePacketCount: airDropModePacketCount,
+            strongestAirDropModeRSSI: strongestAirDropModeRSSI,
+            minimumRSSI: minimumRSSI,
+            requiredPacketsPerSignal: requiredPacketsPerSignal
+        )
+    }
+
+    mutating func reset() {
+        airDropModePacketCount = 0
+        strongestAirDropModeRSSI = nil
+    }
+
+    @discardableResult
+    mutating func record(_ advertisement: AndroidAirDropAdvertisement) -> AndroidAirDropModeObservation {
+        guard advertisement.rssi >= minimumRSSI else {
+            return observation
+        }
+
+        if Self.isAirDropModeAdvertisement(advertisement) {
+            airDropModePacketCount += 1
+            strongestAirDropModeRSSI = Self.strongerRSSI(strongestAirDropModeRSSI, advertisement.rssi)
+        }
+
+        return observation
+    }
+
+    static func isAirDropModeAdvertisement(_ advertisement: AndroidAirDropAdvertisement) -> Bool {
+        #if os(iOS)
+        // iOS exposes the AirDrop-compatible Android share-mode service UUID,
+        // but hides the Apple manufacturer payload from third-party apps. The
+        // share sheet emits a non-connectable FCF1 packet without service data;
+        // background AirDrop-compatible discovery emits connectable FCF1 packets
+        // with FCF1 service data.
+        advertisement.serviceUUIDs.contains(airDropModeServiceUUID) &&
+        advertisement.isConnectable == false &&
+        advertisement.serviceDataHexByUUID[airDropModeServiceUUID] == nil
+        #else
+        advertisement.manufacturerDataHex?.hasPrefix(airDropModeManufacturerPrefix) == true &&
+        advertisement.serviceUUIDs.contains(airDropModeServiceUUID)
+        #endif
+    }
+
+    private static func strongerRSSI(_ current: Int?, _ candidate: Int) -> Int {
+        guard let current else { return candidate }
+        return max(current, candidate)
+    }
+}
+
+final class AndroidAirDropModeDetector: NSObject, CBCentralManagerDelegate {
+    static let shared = AndroidAirDropModeDetector()
+    static let scanServiceUUIDs = [CBUUID(string: AndroidAirDropModeClassifier.airDropModeServiceUUID)]
+    static let scanOptions: [String: Any] = [CBCentralManagerScanOptionAllowDuplicatesKey: true]
+
+    private var centralManager: CBCentralManager?
+    private var classifier = AndroidAirDropModeClassifier()
+    private var onDetected: ((AndroidAirDropModeObservation) -> Void)?
+    private var isScanning = false
+    private var hasDeliveredDetection = false
+
+    func start(onDetected: @escaping (AndroidAirDropModeObservation) -> Void) {
+        guard BluetoothPermissionManager.shared.isAllowed else {
+            log("[AndroidAirDropModeDetector] Bluetooth permission is not granted; skipping scan. authorization=\(BluetoothPermissionManager.shared.authorization.rawValue)")
+            return
+        }
+
+        self.onDetected = onDetected
+
+        guard !hasDeliveredDetection else { return }
+        guard !isScanning else { return }
+
+        log("[AndroidAirDropModeDetector] Starting detector.")
+
+        classifier.reset()
+
+        if centralManager == nil {
+            log("[AndroidAirDropModeDetector] Creating central manager.")
+            centralManager = CBCentralManager(delegate: self, queue: .main)
+        }
+        else if centralManager?.state == .poweredOn {
+            beginScanning()
+        }
+    }
+
+    func stop() {
+        log("[AndroidAirDropModeDetector] Stopping detector.")
+        centralManager?.stopScan()
+        classifier.reset()
+        onDetected = nil
+        hasDeliveredDetection = false
+        isScanning = false
+    }
+
+    func centralManagerDidUpdateState(_ central: CBCentralManager) {
+        log("[AndroidAirDropModeDetector] Central state changed: \(central.state.rawValue)")
+
+        guard central.state == .poweredOn else {
+            if isScanning {
+                central.stopScan()
+                isScanning = false
+            }
+            return
+        }
+
+        if onDetected != nil {
+            beginScanning()
+        }
+    }
+
+    func centralManager(
+        _ central: CBCentralManager,
+        didDiscover peripheral: CBPeripheral,
+        advertisementData: [String: Any],
+        rssi RSSI: NSNumber
+    ) {
+        guard !hasDeliveredDetection else { return }
+
+        let advertisement = Self.advertisement(from: advertisementData, rssi: RSSI.intValue)
+        let observation = classifier.record(advertisement)
+
+        guard observation.isDetected else { return }
+
+        hasDeliveredDetection = true
+        isScanning = false
+        central.stopScan()
+
+        let callback = onDetected
+        onDetected = nil
+
+        log(
+            "[AndroidAirDropModeDetector] Detected Android AirDrop-compatible sharing mode. " +
+            "airDropModePackets=\(observation.airDropModePacketCount), " +
+            "minimumRSSI=\(observation.minimumRSSI)"
+        )
+
+        callback?(observation)
+    }
+
+    private func beginScanning() {
+        guard !isScanning, let centralManager, centralManager.state == .poweredOn else { return }
+
+        let scanTargetDescription = Self.scanServiceUUIDs.map(\.uuidString).joined(separator: ", ")
+        log("[AndroidAirDropModeDetector] BLE scan started for \(scanTargetDescription).")
+
+        // Duplicate delivery is intentional: the classifier waits for repeated
+        // matching packets so one transient advertisement does not trigger the alert.
+        centralManager.scanForPeripherals(
+            withServices: Self.scanServiceUUIDs,
+            options: Self.scanOptions
+        )
+        isScanning = true
+    }
+
+    private static func advertisement(
+        from advertisementData: [String: Any],
+        rssi: Int
+    ) -> AndroidAirDropAdvertisement {
+        var serviceUUIDs = Set<String>()
+        var serviceDataHexByUUID: [String: String] = [:]
+
+        [
+            CBAdvertisementDataServiceUUIDsKey,
+            CBAdvertisementDataOverflowServiceUUIDsKey,
+            CBAdvertisementDataSolicitedServiceUUIDsKey
+        ].forEach { key in
+            guard let uuids = advertisementData[key] as? [CBUUID] else { return }
+            uuids.forEach { serviceUUIDs.insert($0.uuidString) }
+        }
+
+        if let serviceData = advertisementData[CBAdvertisementDataServiceDataKey] as? [CBUUID: Data] {
+            serviceData.forEach { uuid, data in
+                serviceUUIDs.insert(uuid.uuidString)
+                serviceDataHexByUUID[uuid.uuidString] = data.androidAirDropModeHexString
+            }
+        }
+
+        return AndroidAirDropAdvertisement(
+            rssi: rssi,
+            manufacturerDataHex: (advertisementData[CBAdvertisementDataManufacturerDataKey] as? Data)?.androidAirDropModeHexString,
+            serviceUUIDs: serviceUUIDs,
+            serviceDataHexByUUID: serviceDataHexByUUID,
+            isConnectable: advertisementData[CBAdvertisementDataIsConnectable] as? Bool
+        )
+    }
+}
+
+private extension Data {
+    var androidAirDropModeHexString: String {
+        map { String(format: "%02x", $0) }.joined()
+    }
+}

QuickDrop/Util/BluetoothPermissionManager.swift

@@ -0,0 +1,85 @@
+//
+//  BluetoothPermissionManager.swift
+//  QuickDrop
+//
+//  Created by Leon Böttger on 31.05.26.
+//
+
+import Combine
+import CoreBluetooth
+import Foundation
+import LUI
+
+#if os(iOS) && !EXTENSION
+import UIKit
+#endif
+
+#if os(macOS)
+import AppKit
+#endif
+
+final class BluetoothPermissionManager: NSObject, ObservableObject, CBCentralManagerDelegate {
+
+    static let shared = BluetoothPermissionManager()
+
+    @Published private(set) var authorization: CBManagerAuthorization = CBManager.authorization
+
+    private var centralManager: CBCentralManager?
+    private var completion: ((Bool) -> Void)?
+
+    var isAllowed: Bool {
+        authorization == .allowedAlways
+    }
+
+    var canRequestPermission: Bool {
+        authorization == .notDetermined
+    }
+
+    private override init() {
+        super.init()
+    }
+
+    func refresh() {
+        let currentAuthorization = CBManager.authorization
+        guard authorization != currentAuthorization else { return }
+
+        authorization = currentAuthorization
+    }
+
+    func requestPermission(completion: ((Bool) -> Void)? = nil) {
+        refresh()
+
+        guard authorization == .notDetermined else {
+            completion?(isAllowed)
+            return
+        }
+
+        self.completion = completion
+        centralManager = CBCentralManager(delegate: self, queue: .main)
+    }
+
+    func centralManagerDidUpdateState(_ central: CBCentralManager) {
+        refresh()
+
+        guard authorization != .notDetermined else { return }
+
+        let completion = completion
+        self.completion = nil
+        completion?(isAllowed)
+    }
+
+    func openSystemBluetoothSettings() {
+        #if os(iOS) && !EXTENSION
+        openAppSettings()
+        #elseif os(macOS)
+        let urls = [
+            URL(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_Bluetooth"),
+            URL(string: "x-apple.systempreferences:com.apple.BluetoothSettings")
+        ].compactMap { $0 }
+
+        if let url = urls.first {
+            NSWorkspace.shared.open(url)
+        }
+        #endif
+    }
+}

QuickDrop/Util/ClipboardSyncCoordinator.swift

@@ -0,0 +1,317 @@
+//
+//  ClipboardSyncCoordinator.swift
+//  QuickDrop
+//
+
+#if os(macOS) && !EXTENSION
+
+import AppKit
+import Foundation
+import LUI
+
+final class ClipboardSyncCoordinator {
+    static let shared = ClipboardSyncCoordinator()
+
+    private let pollInterval: TimeInterval = 1
+    private let transferTimeout: TimeInterval = 75
+
+    private var isStarted = false
+    private var pollTimer: Timer?
+    private var trustStoreObserver: NSObjectProtocol?
+    private var lastObservedChangeCount: Int
+    private var suppressedClipboardText: String?
+    private var startedOwnDiscovery = false
+    private var activeTransfersByFingerprint: [String: ClipboardSyncTransferDelegate] = [:]
+    private var queuedTextByFingerprint: [String: String] = [:]
+
+    private init() {
+        lastObservedChangeCount = NSPasteboard.general.changeCount
+    }
+
+    func start() {
+        guard !isStarted else {
+            refreshPollingState()
+            return
+        }
+
+        isStarted = true
+        trustStoreObserver = NotificationCenter.default.addObserver(
+            forName: TrustStore.trustedCertificatesDidChange,
+            object: TrustStore.shared,
+            queue: .main
+        ) { [weak self] _ in
+            self?.refreshPollingState()
+        }
+
+        refreshPollingState()
+    }
+
+    func stop() {
+        guard isStarted || pollTimer != nil else { return }
+
+        log("[ClipboardSyncCoordinator] Stopping clipboard watcher")
+        isStarted = false
+        if let trustStoreObserver {
+            NotificationCenter.default.removeObserver(trustStoreObserver)
+            self.trustStoreObserver = nil
+        }
+        stopPolling(clearTransfers: true)
+    }
+
+    private func refreshPollingState() {
+        guard isStarted else { return }
+
+        guard hasTrustedClipboardSyncDevice else {
+            if pollTimer != nil {
+                log("[ClipboardSyncCoordinator] Pausing clipboard watcher because no trusted clipboard sync device is saved")
+            }
+            stopPolling(clearTransfers: true)
+            return
+        }
+
+        startPollingIfNeeded()
+    }
+
+    private var hasTrustedClipboardSyncDevice: Bool {
+        TrustStore.shared.trustedCertificates.values.contains {
+            $0.grantedUseCases.contains(.clipboardSync)
+        }
+    }
+
+    private func startPollingIfNeeded() {
+        guard pollTimer == nil else { return }
+
+        let manager = NearbyConnectionManager.shared
+        if !manager.isDeviceDiscoveryActive {
+            startedOwnDiscovery = true
+            manager.startDeviceDiscovery()
+        }
+
+        lastObservedChangeCount = NSPasteboard.general.changeCount
+        log("[ClipboardSyncCoordinator] Starting clipboard watcher at changeCount=\(lastObservedChangeCount)")
+        pollTimer = Timer.scheduledTimer(withTimeInterval: pollInterval, repeats: true) { [weak self] _ in
+            self?.pollClipboard()
+        }
+    }
+
+    private func stopPolling(clearTransfers: Bool) {
+        pollTimer?.invalidate()
+        pollTimer = nil
+        suppressedClipboardText = nil
+        if clearTransfers {
+            activeTransfersByFingerprint.values.forEach { $0.cancelTimeout() }
+            activeTransfersByFingerprint.removeAll()
+            queuedTextByFingerprint.removeAll()
+        }
+
+        guard startedOwnDiscovery else { return }
+        startedOwnDiscovery = false
+        NearbyConnectionManager.shared.stopDeviceDiscovery()
+    }
+
+    func suppressNextClipboardSync(for text: String) {
+        if Thread.isMainThread {
+            setSuppressedClipboardText(text)
+        } else {
+            DispatchQueue.main.sync {
+                setSuppressedClipboardText(text)
+            }
+        }
+    }
+
+    private func setSuppressedClipboardText(_ text: String) {
+        log("[ClipboardSyncCoordinator] Suppressing next clipboard sync for incoming text with \(text.utf8.count) bytes")
+        suppressedClipboardText = text
+    }
+
+    private func pollClipboard() {
+        let pasteboard = NSPasteboard.general
+        let currentChangeCount = pasteboard.changeCount
+        guard currentChangeCount != lastObservedChangeCount else { return }
+
+        log("[ClipboardSyncCoordinator] Clipboard change detected: \(lastObservedChangeCount) -> \(currentChangeCount)")
+        lastObservedChangeCount = currentChangeCount
+
+        guard let clipboardText = pasteboard.string(forType: .string) else {
+            log("[ClipboardSyncCoordinator] Clipboard change ignored because no plain text content is available")
+            return
+        }
+        guard !clipboardText.isEmpty else {
+            log("[ClipboardSyncCoordinator] Clipboard change ignored because text content is empty")
+            return
+        }
+
+        if suppressedClipboardText == clipboardText {
+            log("[ClipboardSyncCoordinator] Ignoring clipboard change because it matches an incoming clipboard transfer")
+            suppressedClipboardText = nil
+            return
+        }
+        suppressedClipboardText = nil
+
+        sendClipboardText(clipboardText)
+    }
+
+    private func sendClipboardText(_ clipboardText: String) {
+        let targets = nearbyTrustedClipboardTargets()
+        guard !targets.isEmpty else {
+            log("[ClipboardSyncCoordinator] Clipboard change will not be sent because no trusted clipboard-capable devices are nearby")
+            return
+        }
+
+        log("[ClipboardSyncCoordinator] Sending clipboard contents to \(targets.count) trusted clipboard-capable device(s)")
+
+        for target in targets {
+            startTransfer(to: target, clipboardText: clipboardText)
+        }
+    }
+
+    private func startTransfer(to target: ClipboardSyncTarget, clipboardText: String) {
+        guard activeTransfersByFingerprint[target.fingerprint] == nil else {
+            queuedTextByFingerprint[target.fingerprint] = clipboardText
+            log("[ClipboardSyncCoordinator] Queued latest clipboard text for \(target.logName) because a transfer is already active")
+            return
+        }
+
+        let delegate = ClipboardSyncTransferDelegate(target: target) { [weak self] finishedTarget, finishedDelegate in
+            DispatchQueue.main.async {
+                self?.handleTransferCompleted(for: finishedTarget, delegate: finishedDelegate)
+            }
+        }
+        activeTransfersByFingerprint[target.fingerprint] = delegate
+        delegate.startTimeout(after: transferTimeout)
+
+        NearbyConnectionManager.shared.startOutgoingTransfer(
+            deviceID: target.deviceID,
+            delegate: delegate,
+            urls: [],
+            textToSend: clipboardText,
+            isClipboardSyncTransfer: true,
+            receiverAuthenticationPolicy: .trustedReceiver(fingerprint: target.fingerprint)
+        )
+    }
+
+    private func handleTransferCompleted(for target: ClipboardSyncTarget, delegate: ClipboardSyncTransferDelegate) {
+        guard activeTransfersByFingerprint[target.fingerprint] === delegate else {
+            log("[ClipboardSyncCoordinator] Ignoring stale clipboard sync completion for \(target.logName)")
+            return
+        }
+
+        activeTransfersByFingerprint.removeValue(forKey: target.fingerprint)
+
+        guard let queuedText = queuedTextByFingerprint.removeValue(forKey: target.fingerprint) else {
+            return
+        }
+
+        guard let refreshedTarget = nearbyTrustedClipboardTargets()
+            .first(where: { $0.fingerprint == target.fingerprint }) else {
+            log("[ClipboardSyncCoordinator] Dropping queued clipboard text for \(target.logName) because the device is no longer an eligible target")
+            return
+        }
+
+        log("[ClipboardSyncCoordinator] Sending queued latest clipboard text to \(refreshedTarget.logName)")
+        startTransfer(to: refreshedTarget, clipboardText: queuedText)
+    }
+
+    private func nearbyTrustedClipboardTargets() -> [ClipboardSyncTarget] {
+        let trustedFingerprints = Set(
+            TrustStore.shared.trustedCertificates.keys.map {
+                $0.trimmingCharacters(in: .whitespacesAndNewlines).lowercased()
+            }
+        )
+        var seenFingerprints = Set<String>()
+
+        return NearbyConnectionManager.shared.discoveredDevices()
+            .compactMap { device -> ClipboardSyncTarget? in
+                guard let deviceID = device.id,
+                      !deviceID.isEmpty,
+                      let fingerprint = device.keyFingerprint,
+                      trustedFingerprints.contains(fingerprint),
+                      TrustStore.shared.hasUseCaseGrant(.clipboardSync, for: fingerprint),
+                      device.supportsClipboardReceive,
+                      device.type != .computer,
+                      seenFingerprints.insert(fingerprint).inserted else {
+                    return nil
+                }
+
+                return ClipboardSyncTarget(
+                    device: device,
+                    deviceID: deviceID,
+                    fingerprint: fingerprint
+                )
+            }
+            .sorted { lhs, rhs in
+                lhs.logName < rhs.logName
+            }
+    }
+}
+
+private struct ClipboardSyncTarget {
+    let device: RemoteDeviceInfo
+    let deviceID: String
+    let fingerprint: String
+
+    var logName: String {
+        device.name ?? deviceID
+    }
+}
+
+private final class ClipboardSyncTransferDelegate: OutboundAppDelegate {
+    private let target: ClipboardSyncTarget
+    private let onComplete: (ClipboardSyncTarget, ClipboardSyncTransferDelegate) -> Void
+    private var isCompleted = false
+    private var timeoutWorkItem: DispatchWorkItem?
+
+    init(target: ClipboardSyncTarget, onComplete: @escaping (ClipboardSyncTarget, ClipboardSyncTransferDelegate) -> Void) {
+        self.target = target
+        self.onComplete = onComplete
+    }
+
+    func startTimeout(after timeout: TimeInterval) {
+        let timeoutWorkItem = DispatchWorkItem { [weak self] in
+            guard let self, !self.isCompleted else { return }
+
+            log("[ClipboardSyncCoordinator] Clipboard sync to \(self.target.logName) timed out")
+            NearbyConnectionManager.shared.cancelTransfer(id: self.target.deviceID)
+            self.complete()
+        }
+
+        self.timeoutWorkItem = timeoutWorkItem
+        DispatchQueue.main.asyncAfter(deadline: .now() + timeout, execute: timeoutWorkItem)
+    }
+
+    func cancelTimeout() {
+        timeoutWorkItem?.cancel()
+        timeoutWorkItem = nil
+    }
+
+    func addDevice(device _: RemoteDeviceInfo) {}
+
+    func removeDevice(id _: String) {}
+
+    func startTransferWithQrCode(device _: RemoteDeviceInfo) {}
+
+    func connectionWasEstablished(pinCode _: String) {}
+
+    func transferAccepted() {}
+
+    func transferProgress(progress _: Double) {}
+
+    func connectionFailed(error: Error) {
+        log("[ClipboardSyncCoordinator] Clipboard sync to \(target.logName) failed: \(error.localizedDescription)")
+        complete()
+    }
+
+    func transferFinished() {
+        log("[ClipboardSyncCoordinator] Clipboard sync to \(target.logName) finished")
+        complete()
+    }
+
+    private func complete() {
+        guard !isCompleted else { return }
+        isCompleted = true
+        cancelTimeout()
+        onComplete(target, self)
+    }
+}
+
+#endif

QuickDrop/Util/ClipboardSyncNotificationPresenter.swift

@@ -0,0 +1,140 @@
+//
+//  ClipboardSyncNotificationPresenter.swift
+//  QuickDrop
+//
+
+#if os(macOS) && !EXTENSION
+
+import Foundation
+import UserNotifications
+import LUI
+
+final class ClipboardSyncNotificationPresenter {
+
+    static let shared = ClipboardSyncNotificationPresenter()
+    static let notificationIdentifier = "quickdrop-clipboard-sync"
+    private static let notificationIdentifierPrefix = "\(notificationIdentifier)-"
+
+    private let center = UNUserNotificationCenter.current()
+    private let queue = DispatchQueue(label: "ClipboardSyncNotificationPresenter")
+    private var pendingNotifications: [(String, String?)] = []
+    private var authorizationRequestInFlight = false
+    private var postedNotificationIdentifiers: Set<String> = []
+
+    private init() {}
+
+    static func isClipboardSyncNotification(_ notification: UNNotification) -> Bool {
+        notification.request.identifier == notificationIdentifier
+            || notification.request.identifier.hasPrefix(notificationIdentifierPrefix)
+            || notification.request.content.threadIdentifier == notificationIdentifier
+    }
+
+    func present(clipboardText: String, senderDeviceName: String?) {
+        queue.async {
+            self.postNotificationIfAuthorized(
+                clipboardText: clipboardText,
+                senderDeviceName: senderDeviceName
+            )
+        }
+    }
+
+    private func postNotificationIfAuthorized(clipboardText: String, senderDeviceName: String?) {
+        center.getNotificationSettings { settings in
+            self.queue.async {
+                self.handleAuthorizationStatus(
+                    settings.authorizationStatus,
+                    clipboardText: clipboardText,
+                    senderDeviceName: senderDeviceName
+                )
+            }
+        }
+    }
+
+    private func handleAuthorizationStatus(
+        _ status: UNAuthorizationStatus,
+        clipboardText: String,
+        senderDeviceName: String?
+    ) {
+        switch status {
+        case .authorized, .provisional, .ephemeral:
+            post(clipboardText: clipboardText, senderDeviceName: senderDeviceName)
+        case .notDetermined:
+            pendingNotifications.append((clipboardText, senderDeviceName))
+            requestAuthorizationIfNeeded()
+        case .denied:
+            log("[ClipboardSyncNotificationPresenter] Notifications are denied in system settings; cannot show clipboard sync notification.")
+        @unknown default:
+            log("[ClipboardSyncNotificationPresenter] Unknown notification authorization status; skipping clipboard sync notification.")
+        }
+    }
+
+    private func requestAuthorizationIfNeeded() {
+        if authorizationRequestInFlight {
+            return
+        }
+
+        authorizationRequestInFlight = true
+
+        DispatchQueue.main.async {
+            self.center.requestAuthorization(options: [.alert, .badge]) { granted, error in
+                self.queue.async {
+                    self.authorizationRequestInFlight = false
+
+                    if let error = error {
+                        log("[ClipboardSyncNotificationPresenter] Authorization request failed: \(error.localizedDescription)")
+                    }
+
+                    guard granted else {
+                        log("[ClipboardSyncNotificationPresenter] Authorization request not granted; dropping queued clipboard sync notifications.")
+                        self.pendingNotifications.removeAll()
+                        return
+                    }
+
+                    let queued = self.pendingNotifications
+                    self.pendingNotifications.removeAll()
+                    for (queuedText, queuedSender) in queued {
+                        self.post(clipboardText: queuedText, senderDeviceName: queuedSender)
+                    }
+                }
+            }
+        }
+    }
+
+    private func post(clipboardText: String, senderDeviceName: String?) {
+        let senderName = senderDeviceName?.trimmingCharacters(in: .whitespacesAndNewlines)
+        let content = UNMutableNotificationContent()
+        content.title = "CopiedToClipboard".localized()
+        content.body = preview(for: clipboardText)
+        content.subtitle = senderName?.isEmpty == false ? senderName! : "QuickDrop"
+        content.threadIdentifier = Self.notificationIdentifier
+        content.interruptionLevel = .active
+
+        let identifier = Self.makeNotificationIdentifier()
+        var identifiersToRemove = postedNotificationIdentifiers
+        identifiersToRemove.insert(Self.notificationIdentifier)
+        postedNotificationIdentifiers = [identifier]
+        center.removePendingNotificationRequests(withIdentifiers: Array(identifiersToRemove))
+        center.removeDeliveredNotifications(withIdentifiers: Array(identifiersToRemove))
+
+        let request = UNNotificationRequest(identifier: identifier, content: content, trigger: nil)
+        center.add(request) { error in
+            if let error = error {
+                log("[ClipboardSyncNotificationPresenter] Could not post notification: \(error.localizedDescription)")
+            } else {
+                log("[ClipboardSyncNotificationPresenter] Posted clipboard sync notification (\(identifier)).")
+            }
+        }
+    }
+
+    private func preview(for clipboardText: String) -> String {
+        clipboardText
+            .replacingOccurrences(of: "\\s+", with: " ", options: .regularExpression)
+            .trimmingCharacters(in: .whitespacesAndNewlines)
+    }
+
+    private static func makeNotificationIdentifier() -> String {
+        "\(notificationIdentifierPrefix)\(UUID().uuidString)"
+    }
+}
+
+#endif

QuickDrop/Util/ErrorAlertHandler.swift

@@ -27,15 +27,35 @@ class ErrorAlertHandler {
     private var firewallAlertWindow: NSWindow?
     private var apIsolationAlertWindow: NSWindow?
     private var networkFilterAlertWindow: NSWindow?
+    private var androidAirDropModeAlertWindow: NSWindow?
     #endif
     
-    func showErrorAlert(for deviceName: String, error: Error) {
+    /// Resource key for the recoverable-error suffix ("if this keeps happening…") appended to most
+    /// transfer errors.
+    ///
+    /// `Error.FixInstructions` suggests downloading the QuickDrop Android app from Google Play, which
+    /// is pointless for a peer that already runs QuickDrop. For such a peer (`isQuickDropPeer == true`)
+    /// the `Error.FixInstructionsAppInstalled` variant — the same advice without the download
+    /// suggestion — is used instead.
+    static func fixInstructionsKey(isQuickDropPeer: Bool) -> String {
+        isQuickDropPeer ? "Error.FixInstructionsAppInstalled" : "Error.FixInstructions"
+    }
+
+    /// Presents the transfer-error alert for `deviceName`.
+    ///
+    /// - Parameter isQuickDropPeer: whether the other device runs the QuickDrop app. When `true`, the
+    ///   "download the app from Google Play" suggestion is omitted from the fix instructions (see
+    ///   `fixInstructionsKey(isQuickDropPeer:)`). Defaults to `false` so callers without device context
+    ///   keep the full hint.
+    /// - Parameter completion: called after the macOS transfer alert is dismissed. For issue-specific
+    ///   alerts and iOS alerts, it is called after presentation.
+    func showErrorAlert(for deviceName: String, error: Error, isQuickDropPeer: Bool = false, completion: (() -> Void)? = nil) {
         #if os(macOS)
         NSApp.activate(ignoringOtherApps: true)
         #endif
 
         var description = ""
-        let fixInstructions = " " + "Error.FixInstructions".localized()
+        let fixInstructions = " " + Self.fixInstructionsKey(isQuickDropPeer: isQuickDropPeer).localized()
         if let ne = (error as? NearbyError) {
             switch ne {
             case .inputOutput:
@@ -45,6 +65,7 @@ class ErrorAlertHandler {
             case .packetFilterError:
                 #if os(macOS)
                 openAlert(type: .NetworkFilter)
+                completion?()
                 return
                 #else
                 description = error.localizedDescription
@@ -52,6 +73,7 @@ class ErrorAlertHandler {
             case .firewallError:
                 #if os(macOS)
                 openAlert(type: .Firewall)
+                completion?()
                 return
                 #else
                 description = error.localizedDescription
@@ -77,6 +99,7 @@ class ErrorAlertHandler {
         // Prevent multiple alerts at the same time
         if self.isAlertShown {
             log("Skipping alert for error \(error.localizedDescription) because one is already shown")
+            completion?()
             return
         }
         else {
@@ -88,31 +111,14 @@ class ErrorAlertHandler {
             
             #if os(macOS)
             
-            let primaryButtonTitle = "InformDeveloper".localized()
+            // Shown modelessly (the native NSAlert panel via makeKeyAndOrderFront) rather than
-            let secondaryButtonTitle = "CloseAlert".localized()
+            // runModal(), which blocks the main run loop and would freeze the next incoming transfer's
-            
+            // consent prompt until dismissed. Same window runModal() uses, so it looks identical.
             self.isAlertShown = true
-            let alert = NSAlert()
+            presentTransferErrorAlert(title: title, description: description, completion: completion)
-            alert.alertStyle = .critical
-            alert.messageText = title
-            alert.informativeText = description
-            alert.addButton(withTitle: primaryButtonTitle)
-            alert.addButton(withTitle: secondaryButtonTitle)
-            
-            let result = alert.runModal()
-            self.isAlertShown = false
-            
-            if result == .alertFirstButtonReturn {
-                if Bundle.main.bundlePath.hasSuffix(".appex") {
-                    if let url = URL(string: "quickdrop://sendLog") {
-                        NSWorkspace.shared.open(url)
-                    }
-                } else {
-                    LogExportPresenter.showUploadLogsAlert(openSupportMailAfterUpload: false)
-                }
-            }
             #else
             showAlert(title: title, message: description)
+            completion?()
             #endif
         }
     }
@@ -124,6 +130,11 @@ class ErrorAlertHandler {
         AudioManager.playErrorSound()
 
         DispatchQueue.main.async { [self] in
+            if let existingWindow = alertWindow(for: type), existingWindow.isVisible {
+                bringAlertWindowToFront(existingWindow)
+                return
+            }
+
             // Create an NSWindow to host the SwiftUI view
             let alertWindow = NSWindow(
                 contentRect: NSRect(x: 0, y: 0, width: issueViewWidth, height: issueViewHeight),
@@ -142,6 +153,9 @@ class ErrorAlertHandler {
             case .Firewall:
                 firewallAlertWindow = alertWindow
                 alertWindow.contentView = NSHostingView(rootView: FirewallIssueView())
+            case .AndroidAirDropMode:
+                androidAirDropModeAlertWindow = alertWindow
+                alertWindow.contentView = NSHostingView(rootView: AndroidAirDropModeIssueView())
             }
 
             alertWindow.title = "QuickDrop"
@@ -149,9 +163,8 @@ class ErrorAlertHandler {
             alertWindow.isReleasedWhenClosed = false
             alertWindow.setFrameAutosaveName(type.rawValue)
 
-            NSApp.activate(ignoringOtherApps: true)
-            alertWindow.makeKeyAndOrderFront(nil)
             alertWindow.level = .normal
+            bringAlertWindowToFront(alertWindow)
         }
     }
     
@@ -163,6 +176,68 @@ class ErrorAlertHandler {
             self.apIsolationAlertWindow = nil
         }
     }
+
+    private func alertWindow(for type: AlertType) -> NSWindow? {
+        switch type {
+        case .ApIsolation:
+            return apIsolationAlertWindow
+        case .NetworkFilter:
+            return networkFilterAlertWindow
+        case .Firewall:
+            return firewallAlertWindow
+        case .AndroidAirDropMode:
+            return androidAirDropModeAlertWindow
+        }
+    }
+
+    private func bringAlertWindowToFront(_ window: NSWindow) {
+        // Keep the app a menu-bar (.accessory) app: do NOT switch to .regular,
+        // which would add a dock icon that lingers after the alert closes.
+        // orderFrontRegardless() brings the window to the front even though the
+        // app stays inactive in the background.
+        NSApp.activate(ignoringOtherApps: true)
+        window.makeKeyAndOrderFront(nil)
+        window.orderFrontRegardless()
+    }
+
+
+    /// Shows the transfer-error alert as the native `NSAlert` panel, but presented modelessly
+    /// (`makeKeyAndOrderFront`) instead of `runModal()`, so it does NOT block the main run loop — an
+    /// incoming transfer's consent prompt can still appear while it's on screen. It's the same
+    /// `_NSAlertPanel` window `runModal()` would show, so it looks identical; we just route the button
+    /// clicks ourselves (there's no modal session to end) and reset state on dismissal.
+    private func presentTransferErrorAlert(title: String, description: String, completion: (() -> Void)? = nil) {
+        let alert = NSAlert()
+        alert.alertStyle = .critical
+        alert.messageText = title
+        alert.informativeText = description
+        alert.addButton(withTitle: "InformDeveloper".localized())   // tag == .alertFirstButtonReturn
+        alert.addButton(withTitle: "CloseAlert".localized())        // tag == .alertSecondButtonReturn
+        alert.buttons.first?.keyEquivalent = "\r"                    // default button: Return
+        if alert.buttons.count > 1 { alert.buttons[1].keyEquivalent = "\u{1b}" }  // Close: Escape
+
+        ModelessAlertPresenter.present(alert) { [weak self] response in
+            self?.isAlertShown = false
+            if response == .alertFirstButtonReturn {
+                Self.presentLogUpload()
+            }
+            completion?()
+        }
+    }
+
+
+    /// The "Inform developer" action: from the share extension, hand off to the host app via the
+    /// `quickdrop://sendLog` URL; otherwise upload logs directly. Mirrors the previous alert's primary
+    /// button.
+    private static func presentLogUpload() {
+        if Bundle.main.bundlePath.hasSuffix(".appex") {
+            if let url = URL(string: "quickdrop://sendLog") {
+                NSWorkspace.shared.open(url)
+            }
+        } else {
+            LogExportPresenter.showUploadLogsAlert(openSupportMailAfterUpload: false)
+        }
+    }
     #endif
 }
 
@@ -171,4 +246,5 @@ enum AlertType: String {
     case ApIsolation
     case NetworkFilter
     case Firewall
+    case AndroidAirDropMode
 }

QuickDrop/Util/ModelessAlertPresenter.swift

@@ -0,0 +1,78 @@
+//
+//  ModelessAlertPresenter.swift
+//  QuickDrop
+//
+//  Created by Leon Böttger on 30.06.26.
+//
+
+import AppKit
+
+/// Presents an `NSAlert` as its own modeless panel (non-blocking) instead of `runModal()`. It's the
+/// exact `_NSAlertPanel` window `runModal()` would show, so it looks identical — but it does not spin a
+/// nested modal run loop, so the app keeps working (e.g. can still receive the next transfer) while the
+/// alert is on screen.
+///
+/// Use this in place of `alert.runModal()` for any alert that may appear while the app is busy. The
+/// clicked button is reported to `completion` as the `NSApplication.ModalResponse` that `runModal()`
+/// would have returned (first button = `.alertFirstButtonReturn`, second = `.alertSecondButtonReturn`,
+/// …). Must be called on the main thread.
+final class ModelessAlertPresenter: NSObject {
+
+    /// Keeps each live presenter — and thus its `NSAlert` and panel — retained while on screen; the
+    /// entry is removed when the alert is dismissed. `NSButton.target` is weak and the panel is owned by
+    /// the `NSAlert`, so without this the alert would deallocate immediately.
+    private static var active: Set<ModelessAlertPresenter> = []
+
+    private let alert: NSAlert
+    private let completion: (NSApplication.ModalResponse) -> Void
+
+    private init(alert: NSAlert, completion: @escaping (NSApplication.ModalResponse) -> Void) {
+        self.alert = alert
+        self.completion = completion
+    }
+
+    static func present(_ alert: NSAlert,
+                        completion: @escaping (NSApplication.ModalResponse) -> Void = { _ in }) {
+
+        if let window = NSApp.mainWindow ?? NSApp.keyWindow {
+            alert.beginSheetModal(for: window, completionHandler: completion)
+        }
+        else {
+            let presenter = ModelessAlertPresenter(alert: alert, completion: completion)
+            active.insert(presenter)
+            presenter.show()
+        }
+    }
+
+    private func show() {
+        alert.layout()
+
+        // runModal() makes the default button respond to Return; modelessly we set it ourselves — but
+        // only if the caller specified no key equivalents, so explicit ones (e.g. Escape) are kept.
+        if alert.buttons.allSatisfy({ $0.keyEquivalent.isEmpty }) {
+            alert.buttons.first?.keyEquivalent = "\r"
+        }
+
+        for button in alert.buttons {
+            button.target = self
+            button.action = #selector(buttonClicked(_:))
+        }
+
+        let window = alert.window
+        window.center()
+        NSApp.activate(ignoringOtherApps: true)
+        window.makeKeyAndOrderFront(nil)
+        window.orderFrontRegardless()
+    }
+
+    @objc private func buttonClicked(_ sender: NSButton) {
+        let response = NSApplication.ModalResponse(rawValue: sender.tag)
+        alert.window.orderOut(nil)
+        // Defer teardown so the alert and its panel aren't deallocated while this button's action is
+        // still on the stack.
+        DispatchQueue.main.async {
+            self.completion(response)
+            ModelessAlertPresenter.active.remove(self)
+        }
+    }
+}

QuickDrop/Util/SendToExtension.swift

@@ -26,7 +26,7 @@ func sendToSharingService(items: [Any]) {
                 alert.informativeText = "ShareExtensionDisabledDescriptionLegacy".localized()
             }
             alert.addButton(withTitle: "CloseAlert".localized())
-            alert.runModal()
+            ModelessAlertPresenter.present(alert)
         }
     }
 }

QuickDrop/View/Introduction/IntroductionView.swift

@@ -14,6 +14,8 @@ struct IntroductionView: View {
     static let height: CGFloat = 540
     
     @Environment(\.colorScheme) private var colorScheme
+    @Environment(\.scenePhase) private var scenePhase
+    @ObservedObject private var bluetooth = BluetoothPermissionManager.shared
     @State private var currentPage: IntroductionPage = .splash
 
     @State private var pollingPage: IntroductionPage? = nil
@@ -120,6 +122,10 @@ struct IntroductionView: View {
         .onChange(of: currentPage) { newValue in
             pageDidChange(to: newValue)
         }
+        .onChange(of: scenePhase) { newValue in
+            guard newValue == .active, currentPage == .bluetoothAccess else { return }
+            refreshBluetoothPermissionAndAdvanceIfAllowed()
+        }
         .task(id: pollingPage) {
             guard let page = pollingPage else { return }
             
@@ -181,6 +187,11 @@ struct IntroductionView: View {
     
 
     private func continueTapped() {
+        if currentPage == .bluetoothAccess {
+            continueBluetoothPermission()
+            return
+        }
+
         // If already allowed, advance immediately
         if currentPage.canContinue() {
             advance()
@@ -197,6 +208,50 @@ struct IntroductionView: View {
     }
 
     
+    private func continueBluetoothPermission() {
+        bluetooth.refresh()
+
+        if bluetooth.isAllowed {
+            advance()
+            return
+        }
+
+        pollingPage = .bluetoothAccess
+
+        guard bluetooth.canRequestPermission else {
+            bluetooth.openSystemBluetoothSettings()
+            return
+        }
+
+        bluetooth.requestPermission { allowed in
+            DispatchQueue.main.async {
+                guard currentPage == .bluetoothAccess else {
+                    stopPolling()
+                    return
+                }
+
+                if allowed {
+                    stopPolling()
+                    advance()
+                }
+                else {
+                    pollingPage = .bluetoothAccess
+                }
+            }
+        }
+    }
+
+
+    private func refreshBluetoothPermissionAndAdvanceIfAllowed() {
+        bluetooth.refresh()
+
+        guard currentPage == .bluetoothAccess, bluetooth.isAllowed else { return }
+
+        stopPolling()
+        advance()
+    }
+
+
     private func advance() {
 
         if currentPage == .localNetworkAccess {
@@ -223,6 +278,7 @@ enum IntroductionPage: CaseIterable {
     case splash
     case noWifi
     case localNetworkAccess
+    case bluetoothAccess
     case enableShareExtension
     case finished
     
@@ -234,6 +290,8 @@ enum IntroductionPage: CaseIterable {
             return "introduction_no_wifi"
         case .localNetworkAccess:
             return "introduction_local_network_access"
+        case .bluetoothAccess:
+            return "BluetoothPermissionRequiredTitle"
         case .enableShareExtension:
             return "introduction_enable_share_extension"
         case .finished:
@@ -250,6 +308,8 @@ enum IntroductionPage: CaseIterable {
             return "introduction_no_wifi_description"
         case .localNetworkAccess:
             return "introduction_local_network_access_description".localized(with: "introduction_continue".localized())
+        case .bluetoothAccess:
+            return "BluetoothPermissionRequiredSubtitle"
         case .enableShareExtension:
             if #available(macOS 13.0, *) {
                 return "introduction_enable_share_extension_description".localized(with: "EnableQuickDropExtension".localized())
@@ -267,6 +327,8 @@ enum IntroductionPage: CaseIterable {
         switch self {
         case .noWifi:
             return .init(action: presentNextPage, warningTitle: "introduction_no_wifi_skip_title", warningMessage: "introduction_no_wifi_skip_message")
+        case .bluetoothAccess:
+            return .init(action: { .enableShareExtension }, warningTitle: "BluetoothPermissionSkipAlertTitle", warningMessage: "BluetoothPermissionSkipAlertMessage")
         default:
             return nil
         }
@@ -290,6 +352,8 @@ enum IntroductionPage: CaseIterable {
         case .noWifi:
             return firstPermissionPane()
         case .localNetworkAccess:
+            return .bluetoothAccess
+        case .bluetoothAccess:
             return .enableShareExtension
         case .enableShareExtension:
             return .finished
@@ -304,7 +368,7 @@ enum IntroductionPage: CaseIterable {
             // Local network access is requested first on macOS 15+
             return .localNetworkAccess
         }
-        return .enableShareExtension
+        return .bluetoothAccess
     }
     
     
@@ -312,6 +376,8 @@ enum IntroductionPage: CaseIterable {
         switch self {
             case .noWifi:
                 return NearbyConnectionManager.shared.isConnectedToLocalNetwork
+            case .bluetoothAccess:
+                return BluetoothPermissionManager.shared.isAllowed
             default:
                 return true
         }
@@ -332,6 +398,8 @@ enum IntroductionPage: CaseIterable {
                 imageView(for: "wifi.slash", with: height)
             case .localNetworkAccess:
                 imageView(for: "network", with: height)
+            case .bluetoothAccess:
+                imageView(for: "antenna.radiowaves.left.and.right", with: height)
             case .enableShareExtension:
                 imageView(for: "square.and.arrow.up", with: height)
             case .finished:
@@ -351,7 +419,6 @@ enum IntroductionPage: CaseIterable {
             .padding(.top, height * 0.13)
     }
 
-    
     struct SkipAction: Identifiable {
         let action: () -> IntroductionPage?
         let warningTitle: String

QuickDrop/View/IssueViews/AndroidAirDropModeIssueView.swift

@@ -0,0 +1,24 @@
+//
+//  AndroidAirDropModeIssueView.swift
+//  QuickDrop
+//
+//  Created by Leon Böttger on 10.06.26.
+//
+
+import Foundation
+import SwiftUI
+
+struct AndroidAirDropModeIssueView: View {
+    var body: some View {
+        IssueView(
+            image: .smartphone,
+            header: "AndroidAirDropModeHeader".localized(),
+            description: "AndroidAirDropModeDescription".localized()
+        )
+    }
+}
+
+#Preview {
+    AndroidAirDropModeIssueView()
+        .frame(width: issueViewWidth, height: issueViewHeight)
+}

QuickDrop/View/IssueViews/ApIsolationIssueView.swift

@@ -71,7 +71,7 @@ func openRouterSettingsPage() async {
             alert.informativeText = "ApIsolationFindRouterFailedDescription".localized()
             alert.addButton(withTitle: "CloseAlert".localized())
 
-            alert.runModal()
+            ModelessAlertPresenter.present(alert)
         }
         return
     }

QuickDrop/View/IssueViews/IssueView.swift

@@ -102,7 +102,6 @@ struct IssueView: View {
 
 
 #Preview {
-    NetworkFilterIssueView()
+    IssueView(image: .smartphone, header: "Header", description: "Description")
         .frame(width: 600, height: 400)
 }
-

QuickDrop/View/Pairing/PairingQrSheetManager.swift

@@ -1,33 +1,39 @@
 //
-//  NotificationSyncQrSheetManager.swift
+//  PairingQrSheetManager.swift
 //  QuickDrop
 //
-//  Created by Codex on 2026-03-15.
+//  Created by Leon Böttger on 2026-03-15.
 //
 
 import AppKit
 import SwiftUI
 
-final class NotificationSyncQrSheetManager: NSObject, NSWindowDelegate {
+final class PairingQrSheetManager: NSObject, NSWindowDelegate {
-    static let shared = NotificationSyncQrSheetManager()
+    static let shared = PairingQrSheetManager()
 
     private var alert: NSAlert?
     private weak var alertWindow: NSWindow?
 
-    func open(token: String, receiverFingerprint: String, deviceName: String) {
+    func open(
+        token: String,
+        receiverFingerprint: String,
+        deviceName: String,
+        useCase: PairingUseCase
+    ) {
         guard alert == nil else { return }
-        guard let qrImage = NotificationSyncPairingToken.makeQrImage(
+        guard let qrImage = PairingToken.makeQrImage(
             token: token,
-            receiverFingerprint: receiverFingerprint
+            receiverFingerprint: receiverFingerprint,
+            useCase: useCase
         ) else { return }
 
         let alert = NSAlert()
-        alert.messageText = "NotificationSyncQrPairingTitle".localized()
+        alert.messageText = "PairingQrSheetTitle".localized()
-        alert.informativeText = "NotificationSyncQrPairingDescription".localized(with: deviceName)
+        alert.informativeText = "PairingQrSheetDescription".localized(with: deviceName)
         alert.addButton(withTitle: "Cancel".localized())
         alert.alertStyle = .informational
 
-        let accessoryView = NSHostingView(rootView: NotificationSyncQrAccessoryView(qrImage: qrImage))
+        let accessoryView = NSHostingView(rootView: PairingQrAccessoryView(qrImage: qrImage))
         accessoryView.frame = NSRect(x: 0, y: 0, width: 180, height: 180)
         alert.accessoryView = accessoryView
         alert.layout()
@@ -71,7 +77,7 @@ final class NotificationSyncQrSheetManager: NSObject, NSWindowDelegate {
     }
 }
 
-private struct NotificationSyncQrAccessoryView: View {
+private struct PairingQrAccessoryView: View {
     let qrImage: Image
 
     var body: some View {

QuickDrop/View/Settings/SettingsView.swift

@@ -11,10 +11,14 @@ import LUI
 
 struct SettingsView: View {
     
+    let openPlus: () -> Void
+    
     @ObservedObject var settings = Settings.sharedInstance
     @ObservedObject var connectionManager = NearbyConnectionManager.shared
+    @ObservedObject var iapManager = IAPManager.sharedInstance
     
     @State private var isChangeDeviceNameAlertPresented = false
+    @State private var licenseWindow: NSWindow?
     
     var body: some View {
         
@@ -68,18 +72,34 @@ struct SettingsView: View {
                 Divider()
                     .padding(.vertical, 10)
                 
-                Button {
+                HStack(spacing: 30) {
+                    SettingsFooterButton("ManageTrustedDevices") {
                         openTrustedDevicesWindow()
-                } label: {
+                    }
-                    Text("ManageTrustedDevices")
+                    
-                        .underline()
+                    SettingsFooterButton("Acknowledgements") {
-                        .font(.subheadline)
+                        licenseWindow = openLicenseWindow()
-                        .opacity(0.5)
+                    }
+                    
+                    #if !GITHUB
+                    if !iapManager.plusVersionState {
+                        SettingsFooterButton("SupportQuickDrop") {
+                            openPlus()
+                        }
+                    }
+                    #endif
+                    
+                    #if DEBUG
+                    SettingsFooterButton("ResetAllSettings") {
+                        IAPManager.sharedInstance.plusVersionState = false
+                        Settings.sharedInstance.deleteAllUserDefaults()
+                    }
+                    #endif
+                }
+                .minimumScaleFactor(0.7)
                 .frame(maxWidth: .infinity)
                 .padding(.vertical, 15)
             }
-                .buttonStyle(PlainButtonStyle())
-            }
         }
     }
     
@@ -131,7 +151,7 @@ struct SettingsView: View {
                     alert.informativeText = "FolderSelectionFailedMessage".localized()
                     alert.addButton(withTitle: "CloseAlert".localized())
 
-                    alert.runModal()
+                    ModelessAlertPresenter.present(alert)
                 }
             }
         }
@@ -194,7 +214,31 @@ struct SettingsView: View {
 
 struct SettingsView_Previews: PreviewProvider {
     static var previews: some View {
-        SettingsView()
+        SettingsView(openPlus: {})
             .frame(width: 800, height: 500)
     }
 }
+
+
+private struct SettingsFooterButton: View {
+    let title: String
+    let action: () -> Void
+    
+    init(_ title: String, action: @escaping () -> Void) {
+        self.title = title
+        self.action = action
+    }
+    
+    var body: some View {
+        Button {
+            action()
+        } label: {
+            Text(title.localized())
+                .underline()
+                .font(.subheadline)
+                .lineLimit(1)
+                .opacity(0.5)
+        }
+        .buttonStyle(.plain)
+    }
+}

QuickDrop/View/Toast/QuickDropToastView.swift

@@ -13,10 +13,12 @@ let toastViewSize = CGSize(width: 340, height: 65)
 let toastCornerRadius: CGFloat = 22
 let toastTrailingPadding: CGFloat = 20
 let toastSlideDistance: CGFloat = 420
+let toastSlideAnimationDuration: TimeInterval = 0.5
 
 struct QuickDropToastView: View {
     @ObservedObject var settings = Settings.sharedInstance
     @ObservedObject var receiveModel: ReceiveModel
+    let animateProgressVisibility: Bool
     
     @Environment(\.colorScheme) var colorScheme
     
@@ -28,9 +30,11 @@ struct QuickDropToastView: View {
 
     init(
         receiveModel: ReceiveModel,
+        animateProgressVisibility: Bool = true,
         onCancel: @escaping () -> Void = {}
     ) {
         self.receiveModel = receiveModel
+        self.animateProgressVisibility = animateProgressVisibility
         self.onCancel = onCancel
     }
 
@@ -134,7 +138,12 @@ struct QuickDropToastView: View {
                                                 CapsuleProgress(value: progress)
                                             }
                                         }
-                                        .animation(.easeInOut, value: receiveModel.progress == nil)
+                                        .animation(
+                                            animateProgressVisibility
+                                                ? .easeInOut
+                                                : .easeInOut.delay(toastSlideAnimationDuration),
+                                            value: receiveModel.progress == nil
+                                        )
 
                                         Button(action: onCancel) {
                                             Image(systemName: "xmark")
@@ -286,6 +295,7 @@ struct QuickDropToastHostView: View {
     let onCancel: () -> Void
 
     @State private var didRenderOnce = false
+    @State private var hasFinishedSlideIn = false
 
     private let slideAnimation = Animation.smooth
     private let fadeAnimation = Animation.easeInOut
@@ -298,7 +308,11 @@ struct QuickDropToastHostView: View {
         let hiddenBlur: CGFloat = isSlide ? 0 : 8
         let animation = isSlide ? slideAnimation : fadeAnimation
 
-        QuickDropToastView(receiveModel: receiveModel, onCancel: onCancel)
+        QuickDropToastView(
+            receiveModel: receiveModel,
+            animateProgressVisibility: hasFinishedSlideIn,
+            onCancel: onCancel
+        )
             .frame(width: toastViewSize.width, height: toastViewSize.height)
             .offset(x: isVisible ? 0 : hiddenOffset)
             .opacity(isVisible ? 1 : hiddenOpacity)
@@ -314,7 +328,18 @@ struct QuickDropToastHostView: View {
                     didRenderOnce = true
                 }
             }
+            .task(id: isVisible) {
+                hasFinishedSlideIn = !isVisible || !isSlide
+
+                guard isVisible, isSlide else { return }
+
+                try? await Task.sleep(nanoseconds: UInt64(toastSlideAnimationDuration * 1_000_000_000))
+                guard !Task.isCancelled else { return }
+
+                hasFinishedSlideIn = true
+            }
             .onDisappear {
+                hasFinishedSlideIn = false
                 didRenderOnce = false
             }
     }
@@ -414,8 +439,7 @@ struct AdaptiveToastBackgroundLayer: View {
     var body: some View {
         Group {
             if #available(macOS 26.0, *) {
-                Color.clear
+                GlassEffectBackgroundView(cornerRadius: cornerRadius)
-                    .glassEffect(.regular, in: .rect(cornerRadius: cornerRadius, style: .continuous))
             } else {
                 VisualEffectView(material: .hudWindow, blendingMode: .behindWindow, cornerRadius: cornerRadius)
             }
@@ -424,6 +448,22 @@ struct AdaptiveToastBackgroundLayer: View {
 }
 
 
+@available(macOS 26.0, *)
+struct GlassEffectBackgroundView: NSViewRepresentable {
+    var cornerRadius: CGFloat = 0
+
+    func makeNSView(context: Context) -> NSGlassEffectView {
+        let v = NSGlassEffectView()
+        v.cornerRadius = cornerRadius
+        return v
+    }
+
+    func updateNSView(_ v: NSGlassEffectView, context: Context) {
+        v.cornerRadius = cornerRadius
+    }
+}
+
+
 // NSVisualEffectView wrapper for macOS 11 compatible blur/vibrancy
 struct VisualEffectView: NSViewRepresentable {
     var material: NSVisualEffectView.Material = .hudWindow

QuickDrop/View/UserManual/TutorialView.swift

@@ -12,10 +12,7 @@ import SwiftUI
 struct TutorialView: View {
     
     let tab: Tab
-    let openPlus: () -> Void
+    let openAppAdvertisementView: () -> Void
-    
-    @State private var licenseWindow: NSWindow?
-    @ObservedObject var iapManager = IAPManager.sharedInstance
     
     var body: some View {
         
@@ -34,7 +31,7 @@ struct TutorialView: View {
                         .padding(.top)
                     }
                     else {
-                        Text(tab.text.localized())
+                        Text(tab.text)
                             .multilineTextAlignment(.leading)
                             .fixedSize(horizontal: false, vertical: true)
                             .padding()
@@ -43,55 +40,45 @@ struct TutorialView: View {
                 .frame(width: 550)
                 
                 if tab == .receive {
-                    HStack(spacing: 30) {
-                        
                     Button {
-                            licenseWindow = openLicenseWindow()
+                        showAndroidAirDropModeAlert()
                     } label: {
-                            Text("Acknowledgements")
+                        Text("AndroidAirDropModeHelpLink".localized())
                             .underline()
                             .font(.footnote)
-                                .opacity(0.5)
+                            .multilineTextAlignment(.center)
+                            .opacity(0.7)
                     }
                     .buttonStyle(.plain)
-                       
-                        #if !GITHUB
-                        if !iapManager.plusVersionState {
-                            Button {
-                                openPlus()
-                            } label: {
-                                Text("SupportQuickDrop")
-                                    .underline()
-                                    .font(.footnote)
-                                    .opacity(0.5)
-                            }
-                            .buttonStyle(.plain)
-                        }
-                        #endif
-                        
-                        #if DEBUG
-                        Button {
-                            IAPManager.sharedInstance.plusVersionState = false
-                            Settings.sharedInstance.deleteAllUserDefaults()
-                        } label: {
-                            Text("ResetAllSettings")
-                                .underline()
-                                .font(.footnote)
-                                .opacity(0.5)
-                        }
-                        .buttonStyle(.plain)
-                        #endif
-                    }
                     .padding()
                 }
                 else if tab == .send {
                     EnableExtensionView()
                 }
+                else if tab == .notificationSync || tab == .clipboardSync {
+                    Button {
+                        openAppAdvertisementView()
+                    } label: {
+                        Text("DownloadMobileApp".localized())
+                    }
+                    .buttonStyle(.borderedProminent)
+                    .padding()
                 }
             }
         }
     }
     
+    private func showAndroidAirDropModeAlert() {
+        let alert = NSAlert()
+        alert.alertStyle = .informational
+        alert.messageText = "AndroidAirDropModeAlertTitle".localized()
+        alert.informativeText = "AndroidAirDropModeAlertMessage".localized()
+        alert.addButton(withTitle: "CloseAlert".localized())
+
+        ModelessAlertPresenter.present(alert)
+    }
+}
+
 
 struct EnableExtensionView: View {
     @State private var showSharePicker = false
@@ -188,5 +175,5 @@ private struct SharingPickerPresenter: NSViewRepresentable {
 
 
 #Preview {
-    WelcomeScreen(openPlusScreen: {}, openAppAdvertisementView: {}, openCableTransmissionView: {}, checkForNetworkIssues: {})
+    WelcomeScreen(openPlusScreen: {}, openAppAdvertisementView: {}, openCableTransmissionView: {}, checkForNetworkIssues: {}, navigationState: WelcomeScreenNavigationState())
 }

QuickDrop/View/UserManual/WelcomeScreen.swift

@@ -9,6 +9,25 @@ import SwiftUI
 import UniformTypeIdentifiers
 import LUI
 
+struct WelcomeScreenNavigationRequest {
+    let tab: Tab
+    let id = UUID()
+}
+
+
+final class WelcomeScreenNavigationState: ObservableObject {
+    @Published private(set) var request: WelcomeScreenNavigationRequest
+
+    init(selection: Tab = .receive) {
+        self.request = WelcomeScreenNavigationRequest(tab: selection)
+    }
+    
+    func select(_ tab: Tab) {
+        request = WelcomeScreenNavigationRequest(tab: tab)
+    }
+}
+
+
 struct WelcomeScreen: View {
     
     static let width: CGFloat = 1000
@@ -21,7 +40,23 @@ struct WelcomeScreen: View {
     let openCableTransmissionView: () -> Void
     let checkForNetworkIssues: () -> Void
     
-    @State private var selection: Tab = Tab.receive
+    @ObservedObject var navigationState: WelcomeScreenNavigationState
+    @State private var selection: Tab
+    
+    init(
+        openPlusScreen: @escaping () -> Void,
+        openAppAdvertisementView: @escaping () -> Void,
+        openCableTransmissionView: @escaping () -> Void,
+        checkForNetworkIssues: @escaping () -> Void,
+        navigationState: WelcomeScreenNavigationState
+    ) {
+        self.openPlusScreen = openPlusScreen
+        self.openAppAdvertisementView = openAppAdvertisementView
+        self.openCableTransmissionView = openCableTransmissionView
+        self.checkForNetworkIssues = checkForNetworkIssues
+        self.navigationState = navigationState
+        _selection = State(initialValue: navigationState.request.tab)
+    }
     
     var body: some View {
         
@@ -35,7 +70,7 @@ struct WelcomeScreen: View {
             )
             
             List(selection: listBinding) {
-                ForEach(Tab.allCases.filter({$0 != .settings }), id: \.self) { tab in
+                ForEach([Tab.receive, .send, .notificationSync, .clipboardSync], id: \.self) { tab in
                     Label(tab.sidebarTitle, systemImage: tab.systemImage)
                         .tag(tab)
                         .frame(height: 30)
@@ -43,8 +78,14 @@ struct WelcomeScreen: View {
                 
                 Divider()
                 
+                Label(Tab.troubleshooting.sidebarTitle, systemImage: Tab.troubleshooting.systemImage)
+                    .tag(Tab.troubleshooting)
+                    .frame(height: 30)
+                
+                Divider()
+                
                 ExternalLinkLabel(label: "GetSupport", icon: "questionmark.circle") {
-                    SupportMail.sendSupportMail()
+                    LogExportPresenter.showUploadLogsAlert(openSupportMailWhenNotUploading: true)
                 }
                 
                 ExternalLinkLabel(label: "PrivacyPolicy", icon: "hand.raised") {
@@ -76,10 +117,13 @@ struct WelcomeScreen: View {
                 Color.defaultBackground.edgesIgnoringSafeArea(.vertical)
             
                     if selection == .settings {
-                        SettingsView()
+                        SettingsView(openPlus: openPlusScreen)
                     }
                     else {
-                        TutorialView(tab: selection, openPlus: openPlusScreen)
+                        TutorialView(
+                            tab: selection,
+                            openAppAdvertisementView: openAppAdvertisementView
+                        )
                         .onAppear {
                             if selection == .troubleshooting {
                                 checkForNetworkIssues()
@@ -88,6 +132,11 @@ struct WelcomeScreen: View {
                     }
             }
         }
+        .onReceive(navigationState.$request) { request in
+            if selection != request.tab {
+                selection = request.tab
+            }
+        }
         .onDrop(of: [.fileURL], isTargeted: nil) { providers in
             handleDrop(providers: providers)
             return true
@@ -96,7 +145,7 @@ struct WelcomeScreen: View {
     }
     
     func openPrivacyPolicy() {
-        if let url = URL(string: "https://leonboettger.com/quickdrop-privacy") {
+        if let url = URL(string: .privacyPolicyURL) {
             NSWorkspace.shared.open(url)
         }
     }
@@ -177,6 +226,8 @@ struct ExternalLinkLabel: View {
 enum Tab: CaseIterable {
     case receive
     case send
+    case notificationSync
+    case clipboardSync
     case troubleshooting
     case settings
     
@@ -186,6 +237,10 @@ enum Tab: CaseIterable {
             return "ReceiveFiles".localized()
         case .send:
             return "SendFiles".localized()
+        case .notificationSync:
+            return "NotificationSyncSidebar".localized()
+        case .clipboardSync:
+            return "ClipboardSyncSidebar".localized()
         case .troubleshooting:
             return "TroubleshootingAndFaq".localized()
         case .settings:
@@ -203,9 +258,13 @@ enum Tab: CaseIterable {
     var text: String {
         switch self {
         case .receive:
-            "UserManualDescription"
+            "UserManualDescription".localized()
         case .send:
-            "SendFilesDescription"
+            "SendFilesDescription".localized()
+        case .notificationSync:
+            "NotificationSyncManualDescription".localized()
+        case .clipboardSync:
+            "ClipboardSyncManualDescription".localized()
         default:
             ""
         }
@@ -217,6 +276,10 @@ enum Tab: CaseIterable {
             return "tray.and.arrow.down"
         case .send:
             return "tray.and.arrow.up"
+        case .notificationSync:
+            return "bell"
+        case .clipboardSync:
+            return "clipboard"
         case .troubleshooting:
             return "exclamationmark.triangle"
         case .settings:
@@ -227,5 +290,5 @@ enum Tab: CaseIterable {
 
 
 #Preview {
-    WelcomeScreen(openPlusScreen: {}, openAppAdvertisementView: {}, openCableTransmissionView: {}, checkForNetworkIssues: {})
+    WelcomeScreen(openPlusScreen: {}, openAppAdvertisementView: {}, openCableTransmissionView: {}, checkForNetworkIssues: {}, navigationState: WelcomeScreenNavigationState())
 }

QuickDrop/ViewModel/ReceiveModel.swift

@@ -84,7 +84,7 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
 
         #if os(macOS)
         DispatchQueue.main.async {
-            if transfer.type == .notificationSync {
+            if transfer.type == .notificationSync || transfer.type == .clipboardSync {
                 self.hideQuickDropToast()
                 self.toastActions = nil
                 self.progress = nil
@@ -93,7 +93,10 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
                 let resolvedSenderName = (senderName?.isEmpty == false) ? senderName! : "AndroidDevice".localized()
                 self.activeDeviceName = resolvedSenderName
 
-                let compareMessage = "NotificationSyncToastQrSubtitle".localized()
+                let pairingUseCase: PairingUseCase = transfer.type == .clipboardSync ? .clipboardSync : .notificationSync
+                let compareMessage = transfer.type == .clipboardSync
+                    ? "ClipboardSyncToastQrSubtitle".localized()
+                    : "NotificationSyncToastQrSubtitle".localized()
                 self.consentState = ConsentToastState(
                     transferID: transferID,
                     pinCodeMessage: "",
@@ -105,17 +108,18 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
                         withAnimation {
                             self.consentState = nil
                         }
-                        guard let receiverFingerprint = NotificationSyncPairingToken.receiverFingerprintHex() else {
+                        guard let receiverFingerprint = PairingToken.receiverFingerprintHex() else {
                             log("[ReceiveModel] Missing local receiver fingerprint; cannot start notification sync pairing.")
                             secondaryButtonAction()
                             self.hideQuickDropToast(style: .fade)
                             return
                         }
-                        let pairingToken = NotificationSyncPairingToken.generate()
+                        let pairingToken = PairingToken.generate()
-                        NotificationSyncQrSheetManager.shared.open(
+                        PairingQrSheetManager.shared.open(
                             token: pairingToken,
                             receiverFingerprint: receiverFingerprint,
-                            deviceName: resolvedSenderName
+                            deviceName: resolvedSenderName,
+                            useCase: pairingUseCase
                         )
                         NearbyConnectionManager.shared.submitUserConsent(
                             transferID: transferID,
@@ -185,6 +189,11 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
     
     
     func obtainedUserConsentAutomatically(transfer: TransferMetadata, device: RemoteDeviceInfo) {
+        #if os(macOS)
+        if transfer.isClipboardSync {
+            return
+        }
+        #endif
         
         let mainMessage = transfer.getDescription(deviceName: device.name ?? "AndroidDevice".localized())
         
@@ -232,19 +241,19 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
     }
 
     
-    func notificationSyncSetupConfirmed() {
+    func pairingSetupConfirmed() {
         #if os(macOS)
         DispatchQueue.main.async {
             if self.consentState?.notificationSyncStage != nil {
                 self.hideQuickDropToast(style: .fade)
             }
-            NotificationSyncQrSheetManager.shared.close()
+            PairingQrSheetManager.shared.close()
         }
         #endif
     }
     
     
-    func connectionWasTerminated(connectionID: String, from device: RemoteDeviceInfo?, savedFiles: [URL], wasPlainTextTransfer: Bool, error: (any Error)?) {
+    func connectionWasTerminated(connectionID: String, from device: RemoteDeviceInfo?, savedFiles: [URL], wasPlainTextTransfer: Bool, wasClipboardSync: Bool, error: (any Error)?) {
         
         processes.removeValue(forKey: connectionID)
         
@@ -282,7 +291,7 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
                     controlPlusScreen(false)
                     
                     errorVibration()
-                    ErrorAlertHandler.shared.showErrorAlert(for: name, error: error)
+                    ErrorAlertHandler.shared.showErrorAlert(for: name, error: error, isQuickDropPeer: device?.isQuickDropPeer ?? false)
                 }
             } else {
  
@@ -350,7 +359,7 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
                                 alert.informativeText = error.localizedDescription
                                 alert.addButton(withTitle: "CloseAlert".localized())
                                 
-                                alert.runModal()
+                                ModelessAlertPresenter.present(alert)
                             }
                         }
                     }
@@ -388,6 +397,9 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
             if wasPendingConsent {
                 return
             }
+            if wasClipboardSync && error == nil {
+                return
+            }
 
             if let error = error {
                 if let name = device?.name {
@@ -396,7 +408,7 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
                     controlPlusScreen(false)
 
                     errorVibration()
-                    ErrorAlertHandler.shared.showErrorAlert(for: name, error: error)
+                    ErrorAlertHandler.shared.showErrorAlert(for: name, error: error, isQuickDropPeer: device?.isQuickDropPeer ?? false)
                 }
                 return
             }
@@ -441,7 +453,7 @@ class ReceiveModel: ObservableObject, InboundAppDelegate {
                             alert.informativeText = error.localizedDescription
                             alert.addButton(withTitle: "CloseAlert".localized())
 
-                            alert.runModal()
+                            ModelessAlertPresenter.present(alert)
                         }
                     }
                 }

QuickDrop/ViewModel/SendModel.swift

@@ -63,7 +63,7 @@ class SendModel: ObservableObject, OutboundAppDelegate {
         
         if let name = selectedDevice?.name {
             errorVibration()
-            ErrorAlertHandler.shared.showErrorAlert(for: name, error: error)
+            ErrorAlertHandler.shared.showErrorAlert(for: name, error: error, isQuickDropPeer: selectedDevice?.isQuickDropPeer ?? false)
         }
         
         progressValue = nil
@@ -129,7 +129,13 @@ class SendModel: ObservableObject, OutboundAppDelegate {
             selectedDevice = device
             
             runAfter(seconds: 0.3) {
-                NearbyConnectionManager.shared.startOutgoingTransfer(deviceID: device.id!, delegate: self, urls: self.urls, textToSend: self.textToSend)
+                NearbyConnectionManager.shared.startOutgoingTransfer(
+                    deviceID: device.id!,
+                    delegate: self,
+                    urls: self.urls,
+                    textToSend: self.textToSend,
+                    receiverAuthenticationPolicy: .none
+                )
                 self.progressState = "Connecting".localized()
             }
         }

QuickDropTests/AndroidAirDropModeDetectorTests.swift

@@ -0,0 +1,145 @@
+import Foundation
+import CoreBluetooth
+import Testing
+@testable import QuickDrop
+
+@Suite(.serialized)
+struct AndroidAirDropModeDetectorTests {
+    @Test
+    func detectsWhenAirDropModeSignalsPassThreshold() {
+        var classifier = AndroidAirDropModeClassifier(minimumRSSI: -70, requiredPacketsPerSignal: 2)
+
+        let firstAirDropMode = classifier.record(.airDropMode(rssi: -58))
+        #expect(!firstAirDropMode.isDetected)
+
+        let detected = classifier.record(.airDropMode(rssi: -56))
+        #expect(detected.isDetected)
+        #expect(detected.airDropModePacketCount == 2)
+        #expect(detected.strongestAirDropModeRSSI == -56)
+    }
+
+    @Test
+    func matchesObservedMoseyAirDropSuffixVariants() {
+        #expect(
+            AndroidAirDropModeClassifier.isAirDropModeAdvertisement(
+                .airDropMode(manufacturerDataSuffix: "28b429412f624af300", rssi: -58)
+            )
+        )
+        #expect(
+            AndroidAirDropModeClassifier.isAirDropModeAdvertisement(
+                .airDropMode(manufacturerDataSuffix: "03b429412f624af300", rssi: -58)
+            )
+        )
+    }
+
+    @Test
+    func ignoresSignalsBelowRSSIThreshold() {
+        var classifier = AndroidAirDropModeClassifier(minimumRSSI: -70, requiredPacketsPerSignal: 2)
+
+        classifier.record(.airDropMode(rssi: -72))
+        let observation = classifier.record(.airDropMode(rssi: -85))
+
+        #expect(!observation.isDetected)
+        #expect(observation.airDropModePacketCount == 0)
+    }
+
+    #if os(iOS)
+    @Test
+    func iOSDetectsNonConnectableFCF1AdvertisementsWithoutServiceData() {
+        var classifier = AndroidAirDropModeClassifier(minimumRSSI: -70, requiredPacketsPerSignal: 2)
+
+        let firstAirDropMode = classifier.record(.iOSAirDropMode(rssi: -62))
+        #expect(!firstAirDropMode.isDetected)
+
+        let detected = classifier.record(.iOSAirDropMode(rssi: -61))
+        #expect(detected.isDetected)
+        #expect(detected.airDropModePacketCount == 2)
+        #expect(detected.strongestAirDropModeRSSI == -61)
+    }
+
+    @Test
+    func iOSIgnoresBackgroundFCF1AdvertisementsWithServiceData() {
+        var classifier = AndroidAirDropModeClassifier(minimumRSSI: -70, requiredPacketsPerSignal: 1)
+
+        classifier.record(.iOSBackgroundFCF1(rssi: -55))
+        let observation = classifier.record(.iOSBackgroundFCF1(rssi: -56))
+
+        #expect(!observation.isDetected)
+        #expect(observation.airDropModePacketCount == 0)
+    }
+    #else
+    @Test
+    func ignoresNearbyAppleAndBackgroundFCF1Advertisements() {
+        var classifier = AndroidAirDropModeClassifier(minimumRSSI: -70, requiredPacketsPerSignal: 1)
+
+        classifier.record(.advertisement(rssi: -50, manufacturerDataHex: "4c001006031dc4e5be78", serviceUUIDs: []))
+        classifier.record(.advertisement(rssi: -55, manufacturerDataHex: nil, serviceUUIDs: ["FCF1"]))
+        classifier.record(.advertisement(rssi: -56, manufacturerDataHex: "4c00051200000000000000000128b429412f624af300", serviceUUIDs: []))
+        let observation = classifier.record(
+            .advertisement(
+                rssi: -56,
+                manufacturerDataHex: "4c00051200000000000000000028b429412f624af300",
+                serviceUUIDs: ["FCF1"]
+            )
+        )
+
+        #expect(!observation.isDetected)
+        #expect(observation.airDropModePacketCount == 0)
+    }
+    #endif
+
+    @Test
+    func scansOnlyForAirDropModeServiceAndAllowsDuplicatePackets() {
+        #expect(AndroidAirDropModeDetector.scanServiceUUIDs.map(\.uuidString) == [AndroidAirDropModeClassifier.airDropModeServiceUUID])
+        #expect(AndroidAirDropModeDetector.scanOptions[CBCentralManagerScanOptionAllowDuplicatesKey] as? Bool == true)
+    }
+}
+
+private extension AndroidAirDropAdvertisement {
+    static func iOSAirDropMode(rssi: Int) -> Self {
+        advertisement(
+            rssi: rssi,
+            manufacturerDataHex: nil,
+            serviceUUIDs: ["FCF1"],
+            isConnectable: false
+        )
+    }
+
+    static func iOSBackgroundFCF1(rssi: Int) -> Self {
+        advertisement(
+            rssi: rssi,
+            manufacturerDataHex: nil,
+            serviceUUIDs: ["FCF1"],
+            serviceDataHexByUUID: ["FCF1": "0407329497cd97ce4739a79920b877a45bb8d6d1a7"],
+            isConnectable: true
+        )
+    }
+
+    static func airDropMode(rssi: Int) -> Self {
+        airDropMode(manufacturerDataSuffix: "28b429412f624af300", rssi: rssi)
+    }
+
+    static func airDropMode(manufacturerDataSuffix: String, rssi: Int) -> Self {
+        advertisement(
+            rssi: rssi,
+            manufacturerDataHex: "4c000512000000000000000001\(manufacturerDataSuffix)",
+            serviceUUIDs: ["FCF1"]
+        )
+    }
+
+    static func advertisement(
+        rssi: Int,
+        manufacturerDataHex: String?,
+        serviceUUIDs: Set<String>,
+        serviceDataHexByUUID: [String: String] = [:],
+        isConnectable: Bool? = nil
+    ) -> Self {
+        AndroidAirDropAdvertisement(
+            rssi: rssi,
+            manufacturerDataHex: manufacturerDataHex,
+            serviceUUIDs: serviceUUIDs,
+            serviceDataHexByUUID: serviceDataHexByUUID,
+            isConnectable: isConnectable
+        )
+    }
+}

QuickDropiOS/InfoPlist.xcstrings

@@ -25,6 +25,472 @@
         }
       }
     },
+    "NSBluetoothAlwaysUsageDescription" : {
+      "comment" : "Privacy - Bluetooth Always Usage Description",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "يستخدم QuickDrop تقنية Bluetooth لتحسين اكتشاف الأجهزة القريبة."
+          }
+        },
+        "ca" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilitza Bluetooth per millorar la detecció de dispositius propers."
+          }
+        },
+        "cs" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop používá Bluetooth pro vylepšenou detekci zařízení v okolí."
+          }
+        },
+        "da" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruger Bluetooth til forbedret registrering af enheder i nærheden."
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop verwendet Bluetooth für eine verbesserte Erkennung von Geräten in der Nähe."
+          }
+        },
+        "el" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Το QuickDrop χρησιμοποιεί Bluetooth για βελτιωμένο εντοπισμό κοντινών συσκευών."
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-AU" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-GB" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "es-419" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "fi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop käyttää Bluetoothia läheisten laitteiden parempaan havaitsemiseen."
+          }
+        },
+        "fr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "he" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop משתמש ב-Bluetooth לזיהוי משופר של מכשירים בקרבת מקום."
+          }
+        },
+        "hi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop आस-पास के डिवाइस की बेहतर पहचान के लिए Bluetooth का उपयोग करता है।"
+          }
+        },
+        "hr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop koristi Bluetooth za poboljšano otkrivanje uređaja u blizini."
+          }
+        },
+        "hu" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "A QuickDrop Bluetoothot használ a közeli eszközök fejlettebb felismeréséhez."
+          }
+        },
+        "id" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk deteksi perangkat terdekat yang lebih baik."
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa il Bluetooth per un rilevamento migliorato dei dispositivi nelle vicinanze."
+          }
+        },
+        "ja" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDropは、近くのデバイスをより正確に検出するためにBluetoothを使用します。"
+          }
+        },
+        "ko" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop은 주변 기기를 더 잘 감지하기 위해 Bluetooth를 사용합니다."
+          }
+        },
+        "ms" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk pengesanan peranti berdekatan yang dipertingkatkan."
+          }
+        },
+        "nb" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruker Bluetooth for forbedret oppdagelse av enheter i nærheten."
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop gebruikt Bluetooth voor verbeterde detectie van apparaten in de buurt."
+          }
+        },
+        "pl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop używa Bluetooth do ulepszonego wykrywania pobliskich urządzeń."
+          }
+        },
+        "pt-BR" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a detecção de dispositivos próximos."
+          }
+        },
+        "pt-PT" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a deteção de dispositivos próximos."
+          }
+        },
+        "ro" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop folosește Bluetooth pentru detectarea îmbunătățită a dispozitivelor din apropiere."
+          }
+        },
+        "ru" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop использует Bluetooth для улучшенного обнаружения устройств поблизости."
+          }
+        },
+        "sv" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop använder Bluetooth för förbättrad upptäckt av enheter i närheten."
+          }
+        },
+        "th" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop ใช้ Bluetooth เพื่อการตรวจจับอุปกรณ์ใกล้เคียงที่ดียิ่งขึ้น"
+          }
+        },
+        "tr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop, yakındaki cihazları daha iyi algılamak için Bluetooth kullanır."
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop використовує Bluetooth для покращеного виявлення пристроїв поблизу."
+          }
+        },
+        "vi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop sử dụng Bluetooth để phát hiện thiết bị lân cận tốt hơn."
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用蓝牙来增强附近设备检测。"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用藍牙來增強附近裝置偵測。"
+          }
+        }
+      }
+    },
+    "NSBluetoothPeripheralUsageDescription" : {
+      "comment" : "Privacy - Bluetooth Peripheral Usage Description",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "يستخدم QuickDrop تقنية Bluetooth لتحسين اكتشاف الأجهزة القريبة."
+          }
+        },
+        "ca" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilitza Bluetooth per millorar la detecció de dispositius propers."
+          }
+        },
+        "cs" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop používá Bluetooth pro vylepšenou detekci zařízení v okolí."
+          }
+        },
+        "da" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruger Bluetooth til forbedret registrering af enheder i nærheden."
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop verwendet Bluetooth für eine verbesserte Erkennung von Geräten in der Nähe."
+          }
+        },
+        "el" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Το QuickDrop χρησιμοποιεί Bluetooth για βελτιωμένο εντοπισμό κοντινών συσκευών."
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-AU" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-GB" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "es-419" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "fi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop käyttää Bluetoothia läheisten laitteiden parempaan havaitsemiseen."
+          }
+        },
+        "fr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "he" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop משתמש ב-Bluetooth לזיהוי משופר של מכשירים בקרבת מקום."
+          }
+        },
+        "hi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop आस-पास के डिवाइस की बेहतर पहचान के लिए Bluetooth का उपयोग करता है।"
+          }
+        },
+        "hr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop koristi Bluetooth za poboljšano otkrivanje uređaja u blizini."
+          }
+        },
+        "hu" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "A QuickDrop Bluetoothot használ a közeli eszközök fejlettebb felismeréséhez."
+          }
+        },
+        "id" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk deteksi perangkat terdekat yang lebih baik."
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa il Bluetooth per un rilevamento migliorato dei dispositivi nelle vicinanze."
+          }
+        },
+        "ja" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDropは、近くのデバイスをより正確に検出するためにBluetoothを使用します。"
+          }
+        },
+        "ko" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop은 주변 기기를 더 잘 감지하기 위해 Bluetooth를 사용합니다."
+          }
+        },
+        "ms" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk pengesanan peranti berdekatan yang dipertingkatkan."
+          }
+        },
+        "nb" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruker Bluetooth for forbedret oppdagelse av enheter i nærheten."
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop gebruikt Bluetooth voor verbeterde detectie van apparaten in de buurt."
+          }
+        },
+        "pl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop używa Bluetooth do ulepszonego wykrywania pobliskich urządzeń."
+          }
+        },
+        "pt-BR" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a detecção de dispositivos próximos."
+          }
+        },
+        "pt-PT" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a deteção de dispositivos próximos."
+          }
+        },
+        "ro" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop folosește Bluetooth pentru detectarea îmbunătățită a dispozitivelor din apropiere."
+          }
+        },
+        "ru" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop использует Bluetooth для улучшенного обнаружения устройств поблизости."
+          }
+        },
+        "sv" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop använder Bluetooth för förbättrad upptäckt av enheter i närheten."
+          }
+        },
+        "th" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop ใช้ Bluetooth เพื่อการตรวจจับอุปกรณ์ใกล้เคียงที่ดียิ่งขึ้น"
+          }
+        },
+        "tr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop, yakındaki cihazları daha iyi algılamak için Bluetooth kullanır."
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop використовує Bluetooth для покращеного виявлення пристроїв поблизу."
+          }
+        },
+        "vi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop sử dụng Bluetooth để phát hiện thiết bị lân cận tốt hơn."
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用蓝牙来增强附近设备检测。"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用藍牙來增強附近裝置偵測。"
+          }
+        }
+      }
+    },
     "NSHumanReadableCopyright" : {
       "comment" : "Copyright (human-readable)",
       "extractionState" : "extracted_with_value",

QuickDropiOS/ShareViewModel.swift

@@ -47,7 +47,7 @@ class SendModel: ObservableObject, OutboundAppDelegate {
     
     func connectionFailed(with error: any Error) {
         
-        ErrorAlertHandler.shared.showErrorAlert(for: selectedDevice?.name ?? "?", error: error)
+        ErrorAlertHandler.shared.showErrorAlert(for: selectedDevice?.name ?? "?", error: error, isQuickDropPeer: selectedDevice?.isQuickDropPeer ?? false)
         
         progressValue = nil
         selectedDevice = nil
@@ -84,7 +84,13 @@ class SendModel: ObservableObject, OutboundAppDelegate {
             progressValue = 0
             progressState = "Connecting".localized()
             selectedDevice = device
-            NearbyConnectionManager.shared.startOutgoingTransfer(deviceID: device.id!, delegate: self, urls: urls, textToSend: textToSend)
+            NearbyConnectionManager.shared.startOutgoingTransfer(
+                deviceID: device.id!,
+                delegate: self,
+                urls: urls,
+                textToSend: textToSend,
+                receiverAuthenticationPolicy: .none
+            )
         }
     }
 }

QuickDropiOS/View/ContentView.swift

@@ -14,7 +14,51 @@ struct ContentView: View {
     @ObservedObject var luiSettings = LUISettings.sharedInstance
     @ObservedObject var iapManager = IAPManager.sharedInstance
 
+    #if !EXTENSION
+    @ObservedObject private var bluetoothPermission = BluetoothPermissionManager.shared
+    @Environment(\.scenePhase) private var scenePhase
+    @State private var showAndroidAirDropModeIssue = false
+    @State private var didShowAndroidAirDropModeIssue = false
+    @State private var shouldRequestBluetoothPermissionAutomatically = LUISettings.sharedInstance.appLaunchedBefore
+    #endif
+    
     var body: some View {
+        #if !EXTENSION
+        rootContent
+            .sheet(isPresented: $showAndroidAirDropModeIssue) {
+                NavigationView {
+                    AndroidAirDropModeIssueView()
+                        .navigationTitle(String("QuickDrop"))
+                        .navigationBarTitleDisplayMode(.inline)
+                        .navigationBarItems(trailing: XButton(action: { showAndroidAirDropModeIssue = false }))
+                }
+            }
+            .onAppear {
+                requestBluetoothPermissionForExistingUserIfNeeded()
+                startAndroidAirDropModeDetectionIfAllowed()
+            }
+            .onChange(of: bluetoothPermission.authorization) { _ in
+                startAndroidAirDropModeDetectionIfAllowed()
+            }
+            .onChange(of: scenePhase) { newValue in
+                switch newValue {
+                case .active:
+                    requestBluetoothPermissionForExistingUserIfNeeded()
+                    startAndroidAirDropModeDetectionIfAllowed()
+                case .background:
+                    AndroidAirDropModeDetector.shared.stop()
+                case .inactive:
+                    break
+                @unknown default:
+                    break
+                }
+            }
+        #else
+        rootContent
+        #endif
+    }
+
+    private var rootContent: some View {
         AppRootView(phoneView: {
             DeviceListView()
                 .environment(\.sheetActive, isShareExtension())
@@ -26,16 +70,81 @@ struct ContentView: View {
                     NavigationLinkLabel(imageName: "folder.fill", text: "BrowseDownloadedFiles")
                 }
                 
-                LUILink(destination: NavigationSubView(header: "TrustedDevices") {
+                LUILink(destination: TrustedDevicesView()) {
-                    TrustedDevicesView()
-                }) {
                     NavigationLinkLabel(imageName: "checkmark.shield.fill", text: "ManageTrustedDevices", backgroundColor: .green)
                 }
             }
+
+            CustomSection {
+                LUILink(destination: QuickDropFAQSettingsView()) {
+                    NavigationLinkLabel(imageName: "questionmark.circle.fill", text: "TroubleshootingAndFaq", backgroundColor: .orange)
+                }
+            }
         }, firstIntroductionView: {
             LocalNetworkPermissionView()
         })
     }
+
+    #if !EXTENSION
+    private func requestBluetoothPermissionForExistingUserIfNeeded() {
+        guard shouldRequestBluetoothPermissionAutomatically else { return }
+
+        requestBluetoothPermissionIfNeeded()
+    }
+
+    private func requestBluetoothPermissionIfNeeded() {
+        bluetoothPermission.refresh()
+
+        guard bluetoothPermission.canRequestPermission else { return }
+
+        log("[ContentView] Requesting Bluetooth permission for Android AirDrop mode detection.")
+
+        bluetoothPermission.requestPermission { allowed in
+            log("[ContentView] Bluetooth permission request completed. allowed=\(allowed)")
+
+            guard allowed else { return }
+
+            DispatchQueue.main.async {
+                startAndroidAirDropModeDetectionIfAllowed()
+            }
+        }
+    }
+
+    private func startAndroidAirDropModeDetectionIfAllowed() {
+        guard !didShowAndroidAirDropModeIssue else { return }
+
+        bluetoothPermission.refresh()
+
+        guard bluetoothPermission.isAllowed else { return }
+
+        AndroidAirDropModeDetector.shared.start { _ in
+            DispatchQueue.main.async {
+                guard !didShowAndroidAirDropModeIssue else { return }
+
+                didShowAndroidAirDropModeIssue = true
+                showAndroidAirDropModeIssue = true
+            }
+        }
+    }
+    #endif
+}
+
+private struct QuickDropFAQSettingsView: View {
+
+    private let faqItems: [FAQItem] = [
+        .init(question: "FaqNotVisibleOrConnectingQuestion", answer: "FaqNotVisibleOrConnectingAnswer"),
+        .init(question: "FaqPhotoDateNotPreservedQuestion", answer: "FaqPhotoDateNotPreservedAnswer"),
+        .init(question: "FaqAndroidDeviceNotVisibleQuestion", answer: "FaqAndroidDeviceNotVisibleAnswer"),
+        .init(question: "FaqTrustedDevicesQuestion", answer: "FaqTrustedDevicesAnswer"),
+        .init(question: "MultipleFilesSendingQuestion", answer: "MultipleFilesSendingAnswer"),
+        .init(question: "FaqBugQuestion", answer: "FaqBugAnswer"),
+    ]
+
+    var body: some View {
+        NavigationSubView(header: "TroubleshootingAndFaq") {
+            FAQView(faqItems: faqItems)
+        }
+    }
 }
 
 struct DeviceListView: View {
@@ -65,7 +174,7 @@ struct DeviceListView: View {
         
         let showsLoadingIndicator = nearbyConnectionManager.hasLocalNetworkPermission && nearbyConnectionManager.isConnectedToLocalNetwork
         
-        BottomBarView(header: "QuickDrop", navigationBarLayout: isShareExtension() ? .SmallOnlyAlways : .Default, bottomViewHeight: 30) {
+        BottomBarView(header: "QuickDrop", ignoresKeyboard: true, navigationBarLayout: isShareExtension() ? .SmallOnlyAlways : .Default, bottomViewHeight: 30) {
             VStack {
                 
                 let attachments = nearbyConnectionManager.attachments
@@ -288,14 +397,25 @@ struct DeviceButtonLabel: View {
                     .fontWeight(.bold)
             }
             
-            VStack(alignment: .leading, spacing: 5) {
+            VStack(alignment: .leading, spacing: 2) {
+                HStack(spacing: 5) {
                     Text(name)
-                    .fontWeight(.medium)
+                        .foregroundColor(.mainColor)
+
+                    if device.isQuickDropPeer {
+                        Image(.menuBarIcon)
+                            .renderingMode(.template)
+                            .resizable()
+                            .aspectRatio(contentMode: .fit)
+                            .frame(width: 14, height: 14)
                             .foregroundColor(Color.primary)
+                            .opacity(0.5)
+                    }
+                }
                 
                 Text(isSelected ? progress ?? "..." : "Available".localized())
-                    .font(.system(size: 12))
+                    .foregroundColor(.mainColor.opacity(0.6))
-                    .foregroundColor(Color.primary.opacity(0.6))
+                    .monospacedDigit()
             }
             
             Spacer()

QuickDropiOS/View/FilePicker.swift

@@ -70,6 +70,8 @@ struct SendPickerButton<Label: View>: View {
                 selectedPhotoItems = []
             } catch {
                 log("Could not fetch photo URLs: \(error)")
+                onResult(nil, nil)   // let the caller dismiss the "preparing" it opened on `onPrepare`
+                selectedPhotoItems = []
             }
         }
     }

QuickDropiOS/View/LocalNetworkPermissionView.swift

@@ -27,9 +27,13 @@ public struct LocalNetworkPermissionView: View {
                 let manager = NearbyConnectionManager.shared
                 manager.startDeviceDiscovery()
             }
-        }, continueLabel: "introduction_continue", canSkip: false, nextView: {
+        }, continueLabel: "introduction_continue", nextView: {
+            #if !EXTENSION
+            BluetoothPermissionView()
+            #else
             IntroductionDoneView()
-        }, nextViewSkip: {}, topView: {
+            #endif
+        }, topView: {
             IntroductionIconView(icon: "wifi")
         })
         .onChange(of: scenePhase) { newValue in
@@ -41,6 +45,49 @@ public struct LocalNetworkPermissionView: View {
     }
 }
 
+#if !EXTENSION
+private struct BluetoothPermissionView: View {
+
+    @ObservedObject private var bluetoothPermission = BluetoothPermissionManager.shared
+    @State private var requestedBluetoothAccess = false
+
+    var body: some View {
+        PermissionView(title: "BluetoothPermissionRequiredTitle",
+                       watchSymbol: "",
+                       subtitle: "BluetoothPermissionRequiredSubtitle",
+                       permissionAction: requestBluetoothAccess,
+                       continueLabel: "introduction_continue",
+                       nextView: {
+                           IntroductionDoneView()
+                       },
+                       topView: {
+                           IntroductionIconView(icon: "antenna.radiowaves.left.and.right")
+                       })
+    }
+
+    private func requestBluetoothAccess() {
+        requestedBluetoothAccess = true
+        bluetoothPermission.refresh()
+
+        if bluetoothPermission.isAllowed {
+            IntroductionViewController.sharedInstance.canProceed = true
+            return
+        }
+
+        guard bluetoothPermission.canRequestPermission else {
+            IntroductionViewController.sharedInstance.canProceed = true
+            return
+        }
+
+        bluetoothPermission.requestPermission { _ in
+            DispatchQueue.main.async {
+                IntroductionViewController.sharedInstance.canProceed = true
+            }
+        }
+    }
+}
+#endif
+
 
 #Preview {
     NavigationView {

ShareExtension/ShareViewController.swift

@@ -92,9 +92,15 @@ class ShareViewController: NSViewController, OutboundAppDelegate {
         flowLayout.minimumLineSpacing = 10
         listView!.collectionViewLayout = flowLayout
         listView!.dataSource = self
+        listView!.delegate = self
+        listView!.isSelectable = true
+        listView!.allowsMultipleSelection = false
         
         progressDeviceIconWrap!.wantsLayer = true
         progressDeviceIconWrap!.layer!.masksToBounds = false
+        progressDeviceSecondaryIcon?.image = NSImage(named: "MenuBarIcon")
+        progressDeviceSecondaryIcon?.image?.isTemplate = true
+        progressDeviceSecondaryIcon?.contentTintColor = .white
     }
     
     
@@ -112,9 +118,7 @@ class ShareViewController: NSViewController, OutboundAppDelegate {
         
         timeoutDispatchWorkItem?.cancel()
         
-        if chosenDevice == nil {
         NearbyConnectionManager.shared.stopDeviceDiscovery()
-        }
         NearbyConnectionManager.shared.removeOutboundAppDelegate(self)
     }
     
@@ -224,8 +228,13 @@ class ShareViewController: NSViewController, OutboundAppDelegate {
         progressProgressBar?.doubleValue = 0
         lastError = error
         
-        ErrorAlertHandler.shared.showErrorAlert(for: chosenDevice?.name ?? "", error: error)
+        ErrorAlertHandler.shared.showErrorAlert(
-        self.extensionContext!.cancelRequest(withError: error)
+            for: chosenDevice?.name ?? "",
+            error: error,
+            isQuickDropPeer: chosenDevice?.isQuickDropPeer ?? false
+        ) { [weak self] in
+            self?.extensionContext?.cancelRequest(withError: error)
+        }
     }
     
     
@@ -246,20 +255,25 @@ class ShareViewController: NSViewController, OutboundAppDelegate {
     
     
     func selectDevice(device: RemoteDeviceInfo) {
+        guard chosenDevice == nil else { return }
         
         listViewWrapper?.animator().isHidden = true
         dontSeeDeviceButton?.animator().isHidden = true
         progressView?.animator().isHidden = false
         progressDeviceName?.stringValue = getDeviceName(device: device)
         progressDeviceIcon?.image = imageForDeviceType(type: device.type)
+        progressDeviceSecondaryIcon?.isHidden = !device.isQuickDropPeer
         progressProgressBar?.startAnimation(nil)
         progressState?.stringValue = "Preparing".localized()
         chosenDevice = device
-        NearbyConnectionManager.shared.stopDeviceDiscovery()
         
         runAfter(seconds: 0.3) {
-            NearbyConnectionManager.shared.startOutgoingTransfer(deviceID: device.id!, delegate: self, urls: self.urls, textToSend: self.textToSend)
+            NearbyConnectionManager.shared.startOutgoingTransfer(
-            
+                deviceID: device.id!,
+                delegate: self,
+                urls: self.urls,
+                textToSend: self.textToSend,
+                preparationFinished: {
                     self.progressState?.stringValue = "Connecting".localized()
                     
                     let timeoutAlert = DispatchWorkItem {
@@ -289,6 +303,9 @@ class ShareViewController: NSViewController, OutboundAppDelegate {
                     
                     self.timeoutDispatchWorkItem = timeoutAlert
                     DispatchQueue.main.asyncAfter(deadline: .now() + 10.0, execute: timeoutAlert)
+                },
+                receiverAuthenticationPolicy: .none
+            )
         }
     }
     
@@ -384,10 +401,13 @@ extension ShareViewController: NSCollectionViewDataSource {
         
         guard let collectionViewItem = item as? DeviceListCell else { return item }
         
-        let device = foundDevices[indexPath[1]]
+        let device = foundDevices[indexPath.item]
         
-        collectionViewItem.textField?.stringValue = getDeviceName(device: device)
+        collectionViewItem.configure(
-        collectionViewItem.imageView?.image = imageForDeviceType(type: device.type)
+            deviceName: getDeviceName(device: device),
+            deviceImage: imageForDeviceType(type: device.type),
+            showsQuickDropPeerMarker: device.isQuickDropPeer && device.type == .phone
+        )
         collectionViewItem.clickHandler = {
             self.selectDevice(device: device)
         }
@@ -406,6 +426,20 @@ extension ShareViewController: NSCollectionViewDataSource {
 }
 
 
+extension ShareViewController: NSCollectionViewDelegate {
+
+    func collectionView(_ collectionView: NSCollectionView, didSelectItemsAt indexPaths: Set<IndexPath>) {
+        guard let indexPath = indexPaths.first else { return }
+
+        let itemIndex = indexPath.item
+        guard foundDevices.indices.contains(itemIndex) else { return }
+
+        collectionView.deselectItems(at: indexPaths)
+        selectDevice(device: foundDevices[itemIndex])
+    }
+}
+
+
 fileprivate func openPrivacyAndSecuritySettings() {
     guard let url = URL(string: "x-apple.systempreferences:com.apple.settings.PrivacySecurity.extension") else { return }
     NSWorkspace.shared.open(url)

ShareExtension/View/Base.lproj/ShareViewController.xib

@@ -177,17 +177,17 @@ Gw
                             <imageCell key="cell" refusesFirstResponder="YES" alignment="left" imageScaling="proportionallyDown" id="rb3-78-PXe"/>
                         </imageView>
                         <imageView hidden="YES" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="BEO-kU-a2Q">
-                            <rect key="frame" x="24" y="-8" width="32" height="32"/>
+                            <rect key="frame" x="16.800000000000001" y="16.800000000000001" width="14.4" height="14.4"/>
                             <constraints>
-                                <constraint firstAttribute="height" constant="32" id="05I-Ef-84Z"/>
+                                <constraint firstAttribute="height" constant="14.4" id="05I-Ef-84Z"/>
-                                <constraint firstAttribute="width" constant="32" id="V0g-Fz-HWH"/>
+                                <constraint firstAttribute="width" constant="14.4" id="V0g-Fz-HWH"/>
                             </constraints>
-                            <imageCell key="cell" refusesFirstResponder="YES" alignment="left" imageScaling="proportionallyDown" image="NSCaution" id="k1c-Xl-fTQ"/>
+                            <imageCell key="cell" refusesFirstResponder="YES" alignment="left" imageScaling="proportionallyDown" id="k1c-Xl-fTQ"/>
                         </imageView>
                     </subviews>
                     <constraints>
-                        <constraint firstAttribute="trailing" secondItem="BEO-kU-a2Q" secondAttribute="trailing" constant="-8" id="59U-Zi-ESa"/>
+                        <constraint firstItem="BEO-kU-a2Q" firstAttribute="centerX" secondItem="84U-lB-SRB" secondAttribute="centerX" id="59U-Zi-ESa"/>
-                        <constraint firstAttribute="bottom" secondItem="BEO-kU-a2Q" secondAttribute="bottom" constant="-8" id="8ty-pq-miR"/>
+                        <constraint firstItem="BEO-kU-a2Q" firstAttribute="centerY" secondItem="84U-lB-SRB" secondAttribute="centerY" id="8ty-pq-miR"/>
                         <constraint firstItem="84U-lB-SRB" firstAttribute="top" secondItem="jBg-Ih-Gac" secondAttribute="top" id="MB9-UI-2mb"/>
                         <constraint firstItem="84U-lB-SRB" firstAttribute="leading" secondItem="jBg-Ih-Gac" secondAttribute="leading" id="b23-hJ-aWT"/>
                         <constraint firstAttribute="trailing" secondItem="84U-lB-SRB" secondAttribute="trailing" id="eKl-3V-K49"/>

ShareExtension/View/DeviceListCell.swift

@@ -9,6 +9,7 @@ import Cocoa
 
 class DeviceListCell: NSCollectionViewItem {
     public var clickHandler: (() -> Void)?
+    @IBOutlet private var peerMarkerView: NSImageView?
 
     override func viewDidLoad() {
         super.viewDidLoad()
@@ -17,10 +18,33 @@ class DeviceListCell: NSCollectionViewItem {
         btn.setButtonType(.momentaryPushIn)
         btn.action = #selector(onClick)
         btn.target = self
+
+        addClickRecognizer(to: view)
+        addClickRecognizer(to: textField)
+        addClickRecognizer(to: imageView)
+        addClickRecognizer(to: peerMarkerView)
+
+        peerMarkerView?.image = NSImage(named: "MenuBarIcon")
+        peerMarkerView?.image?.isTemplate = true
+        peerMarkerView?.contentTintColor = .white
     }
 
     @IBAction func onClick(_: Any?) {
         guard let handler = clickHandler else { return }
         handler()
     }
+
+    func configure(deviceName: String, deviceImage: NSImage, showsQuickDropPeerMarker: Bool) {
+        textField?.stringValue = deviceName
+        imageView?.image = deviceImage
+        peerMarkerView?.isHidden = !showsQuickDropPeerMarker
+    }
+
+    private func addClickRecognizer(to targetView: NSView?) {
+        guard let targetView else { return }
+
+        let recognizer = NSClickGestureRecognizer(target: self, action: #selector(onClick(_:)))
+        recognizer.buttonMask = 0x1
+        targetView.addGestureRecognizer(recognizer)
+    }
 }

ShareExtension/View/DeviceListCell.xib

@@ -36,10 +36,20 @@
                     </constraints>
                     <imageCell key="cell" refusesFirstResponder="YES" alignment="left" imageScaling="proportionallyDown" id="QGU-rR-rJQ"/>
                 </imageView>
+                <imageView hidden="YES" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="89K-DQ-f8g">
+                    <rect key="frame" x="95.799999999999997" y="58.799999999999997" width="14.4" height="14.4"/>
+                    <constraints>
+                        <constraint firstAttribute="width" constant="14.4" id="Lfh-Ha-Njl"/>
+                        <constraint firstAttribute="height" constant="14.4" id="Wm1-YW-85X"/>
+                    </constraints>
+                    <imageCell key="cell" refusesFirstResponder="YES" alignment="left" imageScaling="proportionallyDown" id="0fp-y5-fj9"/>
+                </imageView>
             </subviews>
             <constraints>
+                <constraint firstItem="89K-DQ-f8g" firstAttribute="centerX" secondItem="O1J-am-CoK" secondAttribute="centerX" id="Bja-VK-UQf"/>
                 <constraint firstItem="O1J-am-CoK" firstAttribute="centerX" secondItem="Hz6-mo-xeY" secondAttribute="centerX" id="R76-2L-pXb"/>
                 <constraint firstAttribute="bottom" secondItem="QPM-sE-maP" secondAttribute="bottom" id="Ryn-nY-yZp"/>
+                <constraint firstItem="89K-DQ-f8g" firstAttribute="centerY" secondItem="O1J-am-CoK" secondAttribute="centerY" id="Yeh-mY-trP"/>
                 <constraint firstItem="O1J-am-CoK" firstAttribute="top" secondItem="Hz6-mo-xeY" secondAttribute="top" id="ZFA-S9-fpT"/>
                 <constraint firstAttribute="trailing" secondItem="QPM-sE-maP" secondAttribute="trailing" id="eOl-Va-HXq"/>
                 <constraint firstItem="QPM-sE-maP" firstAttribute="top" secondItem="O1J-am-CoK" secondAttribute="bottom" constant="10" id="leg-nD-mHB"/>
@@ -53,6 +63,7 @@
         <collectionViewItem id="1Lb-iJ-Nar" customClass="DeviceListCell" customModule="QuickDropShareExtension" customModuleProvider="target">
             <connections>
                 <outlet property="imageView" destination="O1J-am-CoK" id="zQn-mV-bRy"/>
+                <outlet property="peerMarkerView" destination="89K-DQ-f8g" id="iWY-ru-o1h"/>
                 <outlet property="textField" destination="QPM-sE-maP" id="s0j-Qq-7iA"/>
                 <outlet property="view" destination="Hz6-mo-xeY" id="gZn-20-o77"/>
             </connections>

scripts/use-dev-share-extension.sh

@@ -0,0 +1,48 @@
+#!/bin/sh
+#
+# Make Finder > Share > QuickDrop use the app Xcode just built (not a stale Release/archive copy).
+#
+# macOS LaunchServices registers EVERY QuickDrop.app on disk that shares the bundle id
+# (com.leonboettger.neardrop) -- Debug build, Release build, archives, old DerivedData, ... -- and the
+# share sheet then picks among those duplicates heuristically, so a stale copy can run instead of the
+# one you just built. This script makes the freshly built app the ONLY registered copy of that bundle id.
+#
+# Usage:
+#   - Standalone:  scripts/use-dev-share-extension.sh        (re-points Finder at the newest Debug build)
+#   - Xcode:       add as a Run post-action (Product > Scheme > Edit Scheme > Run > Post-actions >
+#                  "+" > New Run Script Action; "Provide build settings from: QuickDrop"; paste:
+#                      "${SRCROOT}/scripts/use-dev-share-extension.sh"
+#                  Post-actions run outside the build sandbox, so lsregister/mdfind work there even
+#                  though ENABLE_USER_SCRIPT_SANDBOXING is YES for build phases.
+#
+# `set -u` (not -e): a transient lsregister hiccup shouldn't fail the Xcode Run post-action (red dialog).
+set -u
+
+LSREGISTER="/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister"
+BUNDLE_ID="com.leonboettger.neardrop"
+
+# Prefer the app Xcode just built (post-action provides these); else the newest Debug build on disk.
+APP=""
+if [ "${BUILT_PRODUCTS_DIR:-}" != "" ] && [ "${WRAPPER_NAME:-}" != "" ] && [ -d "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}" ]; then
+  APP="${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}"
+else
+  APP="$(mdfind "kMDItemCFBundleIdentifier == '${BUNDLE_ID}'" 2>/dev/null | grep '/Build/Products/Debug/QuickDrop.app$' | head -1)"
+fi
+
+if [ -z "${APP}" ] || [ ! -d "${APP}" ]; then
+  echo "use-dev-share-extension: no QuickDrop Debug build found -- build it in Xcode first." >&2
+  exit 0
+fi
+
+# Unregister every OTHER on-disk copy of the bundle id, then (re)register only this one.
+mdfind "kMDItemCFBundleIdentifier == '${BUNDLE_ID}'" 2>/dev/null | while IFS= read -r other; do
+  [ "${other}" = "${APP}" ] && continue
+  "${LSREGISTER}" -u "${other}" 2>/dev/null || true
+done
+"${LSREGISTER}" -f "${APP}"
+
+# Drop any stale running extension so the next Share rebuilds against the fresh registration.
+pkill -f "${BUNDLE_ID}.ShareExtension" 2>/dev/null || true
+
+echo "use-dev-share-extension: Finder Share -> QuickDrop now points at:"
+echo "  ${APP}"