Bump build number

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
@@ -774,17 +821,15 @@ 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,
-                            pinCode: token,
-                            useCase: pairingUseCase
-                        )
-                    } else {
-                        log("[InboundNearbyConnection \(self.id)] Missing pairing token; pending trust not registered.")
-                        TrustStore.shared.clearPendingPairingTrust(secretIdHex: secretIdHex)
-                    }
+                if let token = pairingToken {
+                    TrustStore.shared.registerPendingPairingTrust(
+                        secretIdHex: secretIdHex,
+                        pinCode: token,
+                        useCase: pairingUseCase
+                    )
+                } else {
+                    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
                 }
-                
-                log("[NearbyConnection \(self.id)] Payload transfer chunk is missing offset or flags. Frame is \(payloadTransfer.debugDescription)")
+            } else if payloadTransfer.packetType == .payloadAck {
+                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 txtKeyNotificationSyncKeyFingerprint = "qd_kid"
+    private let txtQuickDropCapabilities = "qd_caps"
+    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 {
                 
@@ -484,6 +503,16 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
             }
         }
     }
+
+
+    var isDeviceDiscoveryActive: Bool {
+        startedDeviceDiscovery
+    }
+
+
+    func discoveredDevices() -> [RemoteDeviceInfo] {
+        foundServices.values.compactMap(\.device)
+    }
     
     
     public func addOutboundAppDelegate(_ delegate: OutboundAppDelegate) {
@@ -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 cleanedName = endpointInfo.name?.trimmingCharacters(in: .whitespacesAndNewlines)
-        if cleanedName?.isEmpty != false {
+        let isQuickDropPeer = keyFingerprint != nil
+        let needsDeviceNameLookup = deviceNameResolver.needsLookup(for: parsedEndpointInfo)
+        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
         
@@ -606,11 +702,30 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
         
         return deviceInfo
     }
+
+
+    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)
         }
@@ -657,30 +772,130 @@ 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 }
-        
-        do {
-            let localUrls = try saveFilesToTemp(urls: urls)
-            
-            let tcp = NWProtocolTCP.Options()
-            tcp.noDelay = true
-            let nwconn = NWConnection(to: info.service.endpoint, using: NWParameters(tls: .none, tcp: tcp))
-            
-            let conn = OutboundNearbyConnection(connection: nwconn, id: deviceID, urlsToSend: localUrls, textToSend: textToSend)
-            conn.delegate = self
-            conn.qrCodePrivateKey = qrCodePrivateKey
-            
-            let transfer = OutgoingTransferInfo(service: info.service, device: info.device!, connection: conn, delegate: delegate)
-            outgoingTransfers[deviceID] = transfer
-            conn.start()
-        } catch {
-            log("[NearbyConnectionManager] Error storing URLs: \(error)")
-            outboundAppDelegates.forEach { delegate in
-                delegate.connectionFailed(error: error)
+        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 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 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,
+                            isClipboardSyncTransfer: isClipboardSyncTransfer,
+                            receiverAuthenticationPolicy: receiverAuthenticationPolicy
+                        )
+                        conn.remoteDeviceInfo = info.device
+                        conn.delegate = self
+                        conn.qrCodePrivateKey = self.qrCodePrivateKey
+
+                        let transfer = OutgoingTransferInfo(service: info.service, device: info.device!, connection: conn, delegate: delegate)
+                        self.outgoingTransfers[deviceID] = transfer
+                        conn.start()
+                    }
+                }
+            } catch {
+                log("[NearbyConnectionManager] Error storing URLs: \(error)")
+                DispatchQueue.main.async {
+                    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)
     }
     
     
@@ -724,6 +939,78 @@ public class NearbyConnectionManager: NSObject, NetServiceDelegate, InboundNearb
         }
         outgoingTransfers.removeValue(forKey: connection.id)
     }
+
+
+    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 {
@@ -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()
-        pairedResult.v1.pairedKeyResult.status = .unable
+        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()
@@ -471,8 +494,86 @@ class OutboundNearbyConnection: NearbyConnection {
             try sendDisconnectionAndDisconnect()
         }
     }
-    
-    
+
+
+    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 {
@@ -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] = [:]
     
@@ -58,10 +59,16 @@ 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
@@ -71,17 +78,43 @@ 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) {
@@ -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 +20,23 @@
 		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 */; };
-		A1F5B3DC2F3A1A0100A1B2C7 /* NotificationSyncPairingToken.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D82F3A1A0100A1B2C3 /* NotificationSyncPairingToken.swift */; };
-		A1F5B3DD2F3A1A0100A1B2C8 /* NotificationSyncQrSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D92F3A1A0100A1B2C4 /* NotificationSyncQrSheetManager.swift */; };
-		A1F5B3DE2F3A1A0100A1B2C9 /* NotificationSyncQrSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D92F3A1A0100A1B2C4 /* NotificationSyncQrSheetManager.swift */; };
+		A1C0DE112F4C000100ABC001 /* ClipboardSyncCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1C0DE102F4C000100ABC001 /* ClipboardSyncCoordinator.swift */; };
+		A1C0DE122F4C000100ABC001 /* ClipboardSyncCoordinator.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1C0DE102F4C000100ABC001 /* ClipboardSyncCoordinator.swift */; };
+		A1C0DE132F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1C0DE152F4C000100ABC001 /* ClipboardSyncNotificationPresenter.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 */; };
 		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 +90,7 @@
 		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 */; };
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@@ -148,6 +159,7 @@
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 		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 +211,13 @@
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 		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 */; };
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 		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 +227,7 @@
 		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 */; };
@@ -285,6 +300,7 @@
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 		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 */; };
@@ -503,9 +519,12 @@
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 		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>"; };
-		A1F5B3D92F3A1A0100A1B2C4 /* NotificationSyncQrSheetManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NotificationSyncQrSheetManager.swift; sourceTree = "<group>"; };
+		A1C0DE102F4C000100ABC001 /* ClipboardSyncCoordinator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ClipboardSyncCoordinator.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>"; };
 		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 +537,7 @@
 		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; };
@@ -750,12 +770,12 @@
 			path = NearbyShare;
 			sourceTree = "<group>";
 		};
-		A1F5B3DA2F3A1A0100A1B2C5 /* NotificationSync */ = {
+		A1F5B3DA2F3A1A0100A1B2C5 /* Pairing */ = {
 			isa = PBXGroup;
 			children = (
-				A1F5B3D92F3A1A0100A1B2C4 /* NotificationSyncQrSheetManager.swift */,
+				A1F5B3D92F3A1A0100A1B2C4 /* PairingQrSheetManager.swift */,
 			);
-			path = NotificationSync;
+			path = Pairing;
 			sourceTree = "<group>";
 		};
 		EB1325EA2E7025D900FD749C /* SelfTest */ = {
@@ -779,7 +799,7 @@
 				EB886E512E4E19390052B7D9 /* HKDF.swift */,
 				EB4F9D232EC27CF000A74A0F /* FileManager+DocumentsOpener.swift */,
 				EB2F9BFA2DA04B67004010A2 /* Helpers.swift */,
-				A1F5B3D82F3A1A0100A1B2C3 /* NotificationSyncPairingToken.swift */,
+				A1F5B3D82F3A1A0100A1B2C3 /* PairingToken.swift */,
 			);
 			path = Util;
 			sourceTree = "<group>";
@@ -788,6 +808,8 @@
 			isa = PBXGroup;
 			children = (
 				69DA9A1E29E0C0B300A442DA /* NearbyConnectionManager.swift */,
+				EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */,
+				EB3B9F192EF7150400D67050 /* NearbyDeviceNameResolver.swift */,
 				69DA9A2229E17F0400A442DA /* InboundNearbyConnection.swift */,
 				A1B2C3DA2F33AA0100ABC001 /* MirroredNotificationSupport.swift */,
 				691F53BD2ABF03820089FD92 /* OutboundNearbyConnection.swift */,
@@ -911,7 +933,7 @@
 				EB7654772E525ACC006B4AA3 /* MainMenu.xib */,
 				EB6E51A92F2F95EE006D9812 /* UserManual */,
 				EB6E51AA2F2F9606006D9812 /* Toast */,
-				A1F5B3DA2F3A1A0100A1B2C5 /* NotificationSync */,
+				A1F5B3DA2F3A1A0100A1B2C5 /* Pairing */,
 				EB6E51A82F2F95E0006D9812 /* Settings */,
 				EB6E51A72F2F95D0006D9812 /* Introduction */,
 				EBC05C812E33B58300EECC18 /* IssueViews */,
@@ -922,6 +944,8 @@
 		EBC05C6B2E33B57100EECC18 /* Util */ = {
 			isa = PBXGroup;
 			children = (
+				A1C0DE102F4C000100ABC001 /* ClipboardSyncCoordinator.swift */,
+				A1C0DE152F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift */,
 				EB1325F72E70287C00FD749C /* SendToExtension.swift */,
 				EB5C383E2E38C49D0052EFD7 /* LaunchAtLogin.swift */,
 				EB886E662E4F2F7C0052B7D9 /* License.swift */,
@@ -1296,6 +1320,7 @@
 				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 +1340,7 @@
 				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 */,
@@ -1346,14 +1372,16 @@
 				EB16B6152E58B4B9007D9792 /* IdentityManager.swift in Sources */,
 				EB5C37C42E377A780052EFD7 /* securegcm.pb.swift in Sources */,
 				EB97A0102E51CD13008B8C5C /* ReceiveModel.swift in Sources */,
-				A1F5B3DD2F3A1A0100A1B2C8 /* NotificationSyncQrSheetManager.swift in Sources */,
-				A1F5B3DB2F3A1A0100A1B2C6 /* NotificationSyncPairingToken.swift in Sources */,
+				A1F5B3DD2F3A1A0100A1B2C8 /* PairingQrSheetManager.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 */,
@@ -1371,12 +1399,14 @@
 				EBC05C822E33B58300EECC18 /* ApIsolationIssueView.swift in Sources */,
 				EBC05C832E33B58300EECC18 /* FirewallIssueView.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;
 		};
@@ -1403,14 +1433,16 @@
 				EB3B9F112EF7150400D6704E /* IdentityManager.swift in Sources */,
 				EB3B9F122EF7150400D6704E /* securegcm.pb.swift in Sources */,
 				EB3B9F132EF7150400D6704E /* ReceiveModel.swift in Sources */,
-				A1F5B3DE2F3A1A0100A1B2C9 /* NotificationSyncQrSheetManager.swift in Sources */,
-				A1F5B3DC2F3A1A0100A1B2C7 /* NotificationSyncPairingToken.swift in Sources */,
+				A1F5B3DE2F3A1A0100A1B2C9 /* PairingQrSheetManager.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 */,
@@ -1428,12 +1460,14 @@
 				EB3B9F272EF7150400D6704E /* ApIsolationIssueView.swift in Sources */,
 				EB3B9F282EF7150400D6704E /* FirewallIssueView.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 */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -1457,6 +1491,7 @@
 				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 +1511,7 @@
 				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 */,
@@ -1496,6 +1532,7 @@
 				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 */,
@@ -1503,6 +1540,7 @@
 				EB5C37F92E377CE70052EFD7 /* securegcm.pb.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 */,
@@ -1547,10 +1585,12 @@
 				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 */,
@@ -1706,7 +1746,6 @@
 				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 +1812,8 @@
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
-				SHARED_BUILD = 138;
-				SHARED_VERSION = 3.0;
+				SHARED_BUILD = 149;
+				SHARED_VERSION = 4.0;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_EMIT_LOC_STRINGS = YES;
@@ -1836,8 +1875,8 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = macosx;
-				SHARED_BUILD = 138;
-				SHARED_VERSION = 3.0;
+				SHARED_BUILD = 149;
+				SHARED_VERSION = 4.0;
 				STRING_CATALOG_GENERATE_SYMBOLS = YES;
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_EMIT_LOC_STRINGS = YES;

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

@@ -33,8 +33,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/leif-ibsen/BigInt",
       "state" : {
-        "revision" : "8c6f93aa37504b7b1ba3954335b5548a19fbbd82",
-        "version" : "1.22.0"
+        "revision" : "c2f49bee454760e433bafff17bfdc5b96f75d7c8",
+        "version" : "1.23.0"
       }
     },
     {
@@ -52,7 +52,7 @@
       "location" : "https://github.com/leonboe1/LUI.git",
       "state" : {
         "branch" : "main",
-        "revision" : "3582f59e758c39a849ab691f3fe26f7d0f618a94"
+        "revision" : "3af5f2e26d102887980957b2d88a38ea8604b8d8"
       }
     },
     {
@@ -87,8 +87,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-protobuf.git",
       "state" : {
-        "revision" : "a008af1a102ff3dd6cc3764bb69bf63226d0f5f6",
-        "version" : "1.36.1"
+        "revision" : "f6506eaa86ed2e01cb0ae14a75035b7fdbf0918f",
+        "version" : "1.38.0"
       }
     },
     {
@@ -124,7 +124,7 @@
       "location" : "https://github.com/siteline/swiftui-introspect",
       "state" : {
         "branch" : "main",
-        "revision" : "26986a57e31c813f98262ddb62d4b07d40008535"
+        "revision" : "c3db5696c625f8571f5f26fb292568db517374cc"
       }
     },
     {

QuickDrop.xcodeproj/xcshareddata/xcschemes/QuickDropiOS.xcscheme

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

QuickDrop/AppDelegate.swift

@@ -35,6 +35,8 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
     // MARK: NSApplicationDelegate functions
     
     func applicationDidFinishLaunching(_: Notification) {
+        UNUserNotificationCenter.current().delegate = self
+
         // app did not lauch before
         if !Settings.sharedInstance.appLaunchedBefore {
             runAfter(seconds: 0.1) { log("[AppDelegate] Opening Welcome Screen") }
@@ -66,9 +68,6 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
             startReceiving()
         }
 
-        UNUserNotificationCenter.current().delegate = self
-        
-        
         // MARK: Menu Bar
         
         let menu = NSMenu()
@@ -131,6 +130,7 @@ 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 +146,8 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
                 }
             }
         })
+
+        ClipboardSyncCoordinator.shared.start()
     }
     
     
@@ -166,14 +168,19 @@ 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()
         NearbyConnectionManager.shared.stopDeviceDiscovery()
         NearbyConnectionManager.shared.becomeInvisible()
     }

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/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/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 {
-    static let shared = NotificationSyncQrSheetManager()
+final class PairingQrSheetManager: NSObject, NSWindowDelegate {
+    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.informativeText = "NotificationSyncQrPairingDescription".localized(with: deviceName)
+        alert.messageText = "PairingQrSheetTitle".localized()
+        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/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
-                    .glassEffect(.regular, in: .rect(cornerRadius: cornerRadius, style: .continuous))
+                GlassEffectBackgroundView(cornerRadius: cornerRadius)
             } 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

@@ -13,6 +13,7 @@ struct TutorialView: View {
     
     let tab: Tab
     let openPlus: () -> Void
+    let openAppAdvertisementView: () -> Void
     
     @State private var licenseWindow: NSWindow?
     @ObservedObject var iapManager = IAPManager.sharedInstance
@@ -87,6 +88,15 @@ struct TutorialView: View {
                 else if tab == .send {
                     EnableExtensionView()
                 }
+                else if tab == .notificationSync {
+                    Button {
+                        openAppAdvertisementView()
+                    } label: {
+                        Text("DownloadMobileApp".localized())
+                    }
+                    .buttonStyle(.borderedProminent)
+                    .padding()
+                }
             }
         }
     }

QuickDrop/View/UserManual/WelcomeScreen.swift

@@ -44,7 +44,7 @@ struct WelcomeScreen: View {
                 Divider()
                 
                 ExternalLinkLabel(label: "GetSupport", icon: "questionmark.circle") {
-                    SupportMail.sendSupportMail()
+                    LogExportPresenter.showUploadLogsAlert(openSupportMailWhenNotUploading: true)
                 }
                 
                 ExternalLinkLabel(label: "PrivacyPolicy", icon: "hand.raised") {
@@ -79,12 +79,16 @@ struct WelcomeScreen: View {
                         SettingsView()
                     }
                     else {
-                        TutorialView(tab: selection, openPlus: openPlusScreen)
-                            .onAppear {
-                                if selection == .troubleshooting {
-                                    checkForNetworkIssues()
-                                }
+                        TutorialView(
+                            tab: selection,
+                            openPlus: openPlusScreen,
+                            openAppAdvertisementView: openAppAdvertisementView
+                        )
+                        .onAppear {
+                            if selection == .troubleshooting {
+                                checkForNetworkIssues()
                             }
+                        }
                     }
             }
         }
@@ -96,7 +100,7 @@ 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 +181,7 @@ struct ExternalLinkLabel: View {
 enum Tab: CaseIterable {
     case receive
     case send
+    case notificationSync
     case troubleshooting
     case settings
     
@@ -186,6 +191,8 @@ enum Tab: CaseIterable {
             return "ReceiveFiles".localized()
         case .send:
             return "SendFiles".localized()
+        case .notificationSync:
+            return "NotificationSyncSidebar".localized()
         case .troubleshooting:
             return "TroubleshootingAndFaq".localized()
         case .settings:
@@ -206,6 +213,8 @@ enum Tab: CaseIterable {
             "UserManualDescription"
         case .send:
             "SendFilesDescription"
+        case .notificationSync:
+            "NotificationSyncManualDescription"
         default:
             ""
         }
@@ -217,6 +226,8 @@ enum Tab: CaseIterable {
             return "tray.and.arrow.down"
         case .send:
             return "tray.and.arrow.up"
+        case .notificationSync:
+            return "bell"
         case .troubleshooting:
             return "exclamationmark.triangle"
         case .settings:

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()
-                        NotificationSyncQrSheetManager.shared.open(
+                        let pairingToken = PairingToken.generate()
+                        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)
         
@@ -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 {

QuickDrop/ViewModel/SendModel.swift

@@ -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()
             }
         }

QuickDropiOS/ShareViewModel.swift

@@ -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

@@ -65,7 +65,7 @@ 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 +288,25 @@ struct DeviceButtonLabel: View {
                     .fontWeight(.bold)
             }
             
-            VStack(alignment: .leading, spacing: 5) {
-                Text(name)
-                    .fontWeight(.medium)
-                    .foregroundColor(Color.primary)
+            VStack(alignment: .leading, spacing: 2) {
+                HStack(spacing: 5) {
+                    Text(name)
+                        .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(Color.primary.opacity(0.6))
+                    .foregroundColor(.mainColor.opacity(0.6))
+                    .monospacedDigit()
             }
             
             Spacer()

ShareExtension/ShareViewController.swift

@@ -95,6 +95,9 @@ class ShareViewController: NSViewController, OutboundAppDelegate {
         
         progressDeviceIconWrap!.wantsLayer = true
         progressDeviceIconWrap!.layer!.masksToBounds = false
+        progressDeviceSecondaryIcon?.image = NSImage(named: "MenuBarIcon")
+        progressDeviceSecondaryIcon?.image?.isTemplate = true
+        progressDeviceSecondaryIcon?.contentTintColor = .white
     }
     
     
@@ -112,9 +115,7 @@ class ShareViewController: NSViewController, OutboundAppDelegate {
         
         timeoutDispatchWorkItem?.cancel()
         
-        if chosenDevice == nil {
-            NearbyConnectionManager.shared.stopDeviceDiscovery()
-        }
+        NearbyConnectionManager.shared.stopDeviceDiscovery()
         NearbyConnectionManager.shared.removeOutboundAppDelegate(self)
     }
     
@@ -252,43 +253,50 @@ class ShareViewController: NSViewController, OutboundAppDelegate {
         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)
-            
-            self.progressState?.stringValue = "Connecting".localized()
-            
-            let timeoutAlert = DispatchWorkItem {
-                if !self.connectionEstablished {
-                    AudioManager.playErrorSound()
-                    let alert = NSAlert()
-                    alert.alertStyle = .critical
+            NearbyConnectionManager.shared.startOutgoingTransfer(
+                deviceID: device.id!,
+                delegate: self,
+                urls: self.urls,
+                textToSend: self.textToSend,
+                preparationFinished: {
+                    self.progressState?.stringValue = "Connecting".localized()
                     
-                    alert.messageText = "TimeoutTitle".localized()
-                    
-                    if #available(macOS 15.0, *) {
-                        alert.informativeText = "TimeoutDescription".localized()
-                        alert.addButton(withTitle: "TimeoutButton".localized())
-                        alert.addButton(withTitle: "CloseAlert".localized())
-                    } else {
-                        alert.informativeText = "TimeoutDescriptionLegacy".localized()
-                        alert.addButton(withTitle: "TimeoutButtonLegacy".localized())
-                    }
-                    
-                    alert.beginSheetModal(for: self.view.window!) { response in
-                        if #available(macOS 15.0, *), response == .alertFirstButtonReturn {
-                            openPrivacyAndSecuritySettings()
+                    let timeoutAlert = DispatchWorkItem {
+                        if !self.connectionEstablished {
+                            AudioManager.playErrorSound()
+                            let alert = NSAlert()
+                            alert.alertStyle = .critical
+                            
+                            alert.messageText = "TimeoutTitle".localized()
+                            
+                            if #available(macOS 15.0, *) {
+                                alert.informativeText = "TimeoutDescription".localized()
+                                alert.addButton(withTitle: "TimeoutButton".localized())
+                                alert.addButton(withTitle: "CloseAlert".localized())
+                            } else {
+                                alert.informativeText = "TimeoutDescriptionLegacy".localized()
+                                alert.addButton(withTitle: "TimeoutButtonLegacy".localized())
+                            }
+                            
+                            alert.beginSheetModal(for: self.view.window!) { response in
+                                if #available(macOS 15.0, *), response == .alertFirstButtonReturn {
+                                    openPrivacyAndSecuritySettings()
+                                }
+                            }
                         }
                     }
-                }
-            }
-            
-            self.timeoutDispatchWorkItem = timeoutAlert
-            DispatchQueue.main.asyncAfter(deadline: .now() + 10.0, execute: timeoutAlert) 
+                    
+                    self.timeoutDispatchWorkItem = timeoutAlert
+                    DispatchQueue.main.asyncAfter(deadline: .now() + 10.0, execute: timeoutAlert)
+                },
+                receiverAuthenticationPolicy: .none
+            )
         }
     }
     
@@ -386,8 +394,11 @@ extension ShareViewController: NSCollectionViewDataSource {
         
         let device = foundDevices[indexPath[1]]
         
-        collectionViewItem.textField?.stringValue = getDeviceName(device: device)
-        collectionViewItem.imageView?.image = imageForDeviceType(type: device.type)
+        collectionViewItem.configure(
+            deviceName: getDeviceName(device: device),
+            deviceImage: imageForDeviceType(type: device.type),
+            showsQuickDropPeerMarker: device.isQuickDropPeer && device.type == .phone
+        )
         collectionViewItem.clickHandler = {
             self.selectDevice(device: device)
         }

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="width" constant="32" id="V0g-Fz-HWH"/>
+                                <constraint firstAttribute="height" constant="14.4" id="05I-Ef-84Z"/>
+                                <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 firstAttribute="bottom" secondItem="BEO-kU-a2Q" secondAttribute="bottom" constant="-8" id="8ty-pq-miR"/>
+                        <constraint firstItem="BEO-kU-a2Q" firstAttribute="centerX" secondItem="84U-lB-SRB" secondAttribute="centerX" id="59U-Zi-ESa"/>
+                        <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 +18,20 @@ class DeviceListCell: NSCollectionViewItem {
         btn.setButtonType(.momentaryPushIn)
         btn.action = #selector(onClick)
         btn.target = self
+
+        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
+    }
 }

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>