Add AirDrop detection

.gitignore

@@ -1,4 +1,5 @@
 DerivedData/
 .DerivedData/
 .DS_Store
-xcuserdata/
+xcuserdata/
+/research/

QuickDrop.xcodeproj/project.pbxproj

@@ -28,6 +28,15 @@
 		A1F5B3DC2F3A1A0100A1B2C7 /* PairingToken.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D82F3A1A0100A1B2C3 /* PairingToken.swift */; };
 		A1F5B3DD2F3A1A0100A1B2C8 /* PairingQrSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D92F3A1A0100A1B2C4 /* PairingQrSheetManager.swift */; };
 		A1F5B3DE2F3A1A0100A1B2C9 /* PairingQrSheetManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1F5B3D92F3A1A0100A1B2C4 /* PairingQrSheetManager.swift */; };
+		A3D000000000000000000202 /* BluetoothPermissionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A3D000000000000000000002 /* BluetoothPermissionManager.swift */; };
+		A3D000000000000000000203 /* BluetoothPermissionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A3D000000000000000000002 /* BluetoothPermissionManager.swift */; };
+		A6D000000000000000000101 /* AndroidAirDropModeDetector.swift in Sources */ = {isa = PBXBuildFile; fileRef = A6D000000000000000000001 /* AndroidAirDropModeDetector.swift */; };
+		A6D000000000000000000102 /* AndroidAirDropModeDetector.swift in Sources */ = {isa = PBXBuildFile; fileRef = A6D000000000000000000001 /* AndroidAirDropModeDetector.swift */; };
+		A6D000000000000000000201 /* AndroidAirDropModeDetectorTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = A6D000000000000000000002 /* AndroidAirDropModeDetectorTests.swift */; };
+		A7D000000000000000000101 /* AndroidAirDropModeIssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */; };
+		A7D000000000000000000102 /* AndroidAirDropModeIssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */; };
+		A7D000000000000000000103 /* AndroidAirDropModeIssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */; };
+		A7D000000000000000000104 /* AndroidAirDropModeIssueView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */; };
 		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 */; };
@@ -382,6 +391,13 @@
 			remoteGlobalIDString = 699DEBA02AB0573200115D22;
 			remoteInfo = ShareExtension;
 		};
+		E14627D44A6E1CA296A9A53D /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 69DA9A0629E0BF5100A442DA /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 69DA9A0D29E0BF5100A442DA;
+			remoteInfo = QuickDrop;
+		};
 		EB3B9F8C2EF7153000D6704E /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 69DA9A0629E0BF5100A442DA /* Project object */;
@@ -495,6 +511,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		156115A05E122702111639A0 /* QuickDropTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = QuickDropTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		691F53B92ABB70840089FD92 /* DeviceListCell.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeviceListCell.swift; sourceTree = "<group>"; };
 		691F53BA2ABB70840089FD92 /* DeviceListCell.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = DeviceListCell.xib; sourceTree = "<group>"; };
 		691F53BD2ABF03820089FD92 /* OutboundNearbyConnection.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OutboundNearbyConnection.swift; sourceTree = "<group>"; };
@@ -523,6 +540,10 @@
 		A1C0DE152F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ClipboardSyncNotificationPresenter.swift; sourceTree = "<group>"; };
 		A1F5B3D82F3A1A0100A1B2C3 /* PairingToken.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PairingToken.swift; sourceTree = "<group>"; };
 		A1F5B3D92F3A1A0100A1B2C4 /* PairingQrSheetManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PairingQrSheetManager.swift; sourceTree = "<group>"; };
+		A3D000000000000000000002 /* BluetoothPermissionManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BluetoothPermissionManager.swift; sourceTree = "<group>"; };
+		A6D000000000000000000001 /* AndroidAirDropModeDetector.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AndroidAirDropModeDetector.swift; sourceTree = "<group>"; };
+		A6D000000000000000000002 /* AndroidAirDropModeDetectorTests.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = AndroidAirDropModeDetectorTests.swift; sourceTree = "<group>"; };
+		A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AndroidAirDropModeIssueView.swift; sourceTree = "<group>"; };
 		EB05DFBD2E59FC8000EF567A /* TrustedDevicesView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TrustedDevicesView.swift; sourceTree = "<group>"; };
 		EB0A22E22FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NearbyBonjourServiceResolver.swift; sourceTree = "<group>"; };
 		EB1325D22E701D8900FD749C /* Settings.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Settings.swift; sourceTree = "<group>"; };
@@ -595,6 +616,13 @@
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
+		F5F5F63DAC90375051BA9F4E /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		699DEB9E2AB0573200115D22 /* Frameworks */ = {
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
@@ -713,6 +741,7 @@
 				EBC05C8B2E33B59E00EECC18 /* Resources */,
 				EB3B9F492EF7150400D6704E /* QuickDrop copy-Info.plist */,
 				EB3B9F8A2EF7151900D6704E /* QuickDropShareExtension copy-Info.plist */,
+				9E6A957675D279417AA88926 /* QuickDropTests */,
 			);
 			sourceTree = "<group>";
 		};
@@ -725,6 +754,7 @@
 				EB950B2D2E52027F002D68FA /* iOSShareExtension.appex */,
 				EB3B9F482EF7150400D6704E /* QuickDropGitHub.app */,
 				EB3B9F892EF7151900D6704E /* QuickDropShareExtensionGitHub.appex */,
+				156115A05E122702111639A0 /* QuickDropTests.xctest */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -770,6 +800,14 @@
 			path = NearbyShare;
 			sourceTree = "<group>";
 		};
+		9E6A957675D279417AA88926 /* QuickDropTests */ = {
+			isa = PBXGroup;
+			children = (
+				A6D000000000000000000002 /* AndroidAirDropModeDetectorTests.swift */,
+			);
+			path = QuickDropTests;
+			sourceTree = "<group>";
+		};
 		A1F5B3DA2F3A1A0100A1B2C5 /* Pairing */ = {
 			isa = PBXGroup;
 			children = (
@@ -944,6 +982,7 @@
 		EBC05C6B2E33B57100EECC18 /* Util */ = {
 			isa = PBXGroup;
 			children = (
+				A3D000000000000000000002 /* BluetoothPermissionManager.swift */,
 				A1C0DE102F4C000100ABC001 /* ClipboardSyncCoordinator.swift */,
 				A1C0DE152F4C000100ABC001 /* ClipboardSyncNotificationPresenter.swift */,
 				EB1325F72E70287C00FD749C /* SendToExtension.swift */,
@@ -952,6 +991,7 @@
 				EB6FE7D12EFEFB2700FF2BCF /* AllowedWorkMonitor.swift */,
 				EB36435F2D73A29F009CDFF8 /* AudioManager.swift */,
 				EBC05C5A2E33936C00EECC18 /* ErrorAlertHandler.swift */,
+				A6D000000000000000000001 /* AndroidAirDropModeDetector.swift */,
 				EB1325EA2E7025D900FD749C /* SelfTest */,
 			);
 			path = Util;
@@ -964,6 +1004,7 @@
 				EBC05C7E2E33B58300EECC18 /* FirewallIssueView.swift */,
 				EBC05C7F2E33B58300EECC18 /* IssueView.swift */,
 				EBC05C802E33B58300EECC18 /* NetworkFilterIssueView.swift */,
+				A7D000000000000000000001 /* AndroidAirDropModeIssueView.swift */,
 			);
 			path = IssueViews;
 			sourceTree = "<group>";
@@ -981,6 +1022,24 @@
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
+		32A98F34E7D10C21DC2EEA19 /* QuickDropTests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = B473F6C65C8455203EA5FD18 /* Build configuration list for PBXNativeTarget "QuickDropTests" */;
+			buildPhases = (
+				BECDC1522AF83179791FA522 /* Sources */,
+				F5F5F63DAC90375051BA9F4E /* Frameworks */,
+				36CE9ED35EE7975FAB802535 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				C4F698F843B0C498BFC216AB /* PBXTargetDependency */,
+			);
+			name = QuickDropTests;
+			productName = QuickDropTests;
+			productReference = 156115A05E122702111639A0 /* QuickDropTests.xctest */;
+			productType = "com.apple.product-type.bundle.unit-test";
+		};
 		699DEBA02AB0573200115D22 /* QuickDropShareExtension */ = {
 			isa = PBXNativeTarget;
 			buildConfigurationList = 699DEBB12AB0573200115D22 /* Build configuration list for PBXNativeTarget "QuickDropShareExtension" */;
@@ -1137,6 +1196,9 @@
 				LastSwiftUpdateCheck = 1640;
 				LastUpgradeCheck = 2600;
 				TargetAttributes = {
+					32A98F34E7D10C21DC2EEA19 = {
+						CreatedOnToolsVersion = 26.0;
+					};
 					699DEBA02AB0573200115D22 = {
 						CreatedOnToolsVersion = 14.3.1;
 					};
@@ -1196,11 +1258,19 @@
 				EB950B2C2E52027F002D68FA /* iOSShareExtension */,
 				EB3B9EF02EF7150400D6704E /* QuickDropGitHub */,
 				EB3B9F4A2EF7151900D6704E /* QuickDropShareExtensionGitHub */,
+				32A98F34E7D10C21DC2EEA19 /* QuickDropTests */,
 			);
 		};
 /* End PBXProject section */
 
 /* Begin PBXResourcesBuildPhase section */
+		36CE9ED35EE7975FAB802535 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		699DEB9F2AB0573200115D22 /* Resources */ = {
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -1300,6 +1370,14 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */
+		BECDC1522AF83179791FA522 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				A6D000000000000000000201 /* AndroidAirDropModeDetectorTests.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		699DEB9D2AB0573200115D22 /* Sources */ = {
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -1312,6 +1390,7 @@
 				EBE5FF432EDB71810019B380 /* Configuration.swift in Sources */,
 				EB6FE7D42EFEFB2700FF2BCF /* AllowedWorkMonitor.swift in Sources */,
 				EBC05C872E33B58300EECC18 /* IssueView.swift in Sources */,
+				A7D000000000000000000103 /* AndroidAirDropModeIssueView.swift in Sources */,
 				EBC05C882E33B58300EECC18 /* FirewallIssueView.swift in Sources */,
 				EBC05C892E33B58300EECC18 /* ApIsolationIssueView.swift in Sources */,
 				699DEBA62AB0573200115D22 /* ShareViewController.swift in Sources */,
@@ -1363,6 +1442,8 @@
 				EB16B6182E58B4C8007D9792 /* TrustStore.swift in Sources */,
 				EBC05C5B2E33937200EECC18 /* ErrorAlertHandler.swift in Sources */,
 				EB1325D42E701D8E00FD749C /* Settings.swift in Sources */,
+				A3D000000000000000000202 /* BluetoothPermissionManager.swift in Sources */,
+				A6D000000000000000000101 /* AndroidAirDropModeDetector.swift in Sources */,
 				EB886E5D2E4F13EB0052B7D9 /* Zip.swift in Sources */,
 				EB5C37BF2E377A780052EFD7 /* ukey.pb.swift in Sources */,
 				EB5C37C02E377A780052EFD7 /* securemessage.pb.swift in Sources */,
@@ -1398,6 +1479,7 @@
 				EB6FE7D62EFEFB2700FF2BCF /* AllowedWorkMonitor.swift in Sources */,
 				EBC05C822E33B58300EECC18 /* ApIsolationIssueView.swift in Sources */,
 				EBC05C832E33B58300EECC18 /* FirewallIssueView.swift in Sources */,
+				A7D000000000000000000101 /* AndroidAirDropModeIssueView.swift in Sources */,
 				EB1325FA2E70288300FD749C /* SendToExtension.swift in Sources */,
 				EB0A22E72FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */,
 				EB1325F42E7025D900FD749C /* ApIsolationTester.swift in Sources */,
@@ -1424,6 +1506,8 @@
 				EB3B9F082EF7150400D6704E /* TrustStore.swift in Sources */,
 				EB3B9F092EF7150400D6704E /* ErrorAlertHandler.swift in Sources */,
 				EB3B9F0A2EF7150400D6704E /* Settings.swift in Sources */,
+				A3D000000000000000000203 /* BluetoothPermissionManager.swift in Sources */,
+				A6D000000000000000000102 /* AndroidAirDropModeDetector.swift in Sources */,
 				EB3B9F0B2EF7150400D6704E /* Zip.swift in Sources */,
 				EB3B9F0C2EF7150400D6704E /* ukey.pb.swift in Sources */,
 				EB3B9F0D2EF7150400D6704E /* securemessage.pb.swift in Sources */,
@@ -1459,6 +1543,7 @@
 				EB6FE7D52EFEFB2700FF2BCF /* AllowedWorkMonitor.swift in Sources */,
 				EB3B9F272EF7150400D6704E /* ApIsolationIssueView.swift in Sources */,
 				EB3B9F282EF7150400D6704E /* FirewallIssueView.swift in Sources */,
+				A7D000000000000000000102 /* AndroidAirDropModeIssueView.swift in Sources */,
 				EB3B9F292EF7150400D6704E /* SendToExtension.swift in Sources */,
 				EB0A22E82FBCF59300B78FF5 /* NearbyBonjourServiceResolver.swift in Sources */,
 				EB3B9F2A2EF7150400D6704E /* ApIsolationTester.swift in Sources */,
@@ -1483,6 +1568,7 @@
 				EB3B9F522EF7151900D6704E /* Configuration.swift in Sources */,
 				EB6FE7D22EFEFB2700FF2BCF /* AllowedWorkMonitor.swift in Sources */,
 				EB3B9F532EF7151900D6704E /* IssueView.swift in Sources */,
+				A7D000000000000000000104 /* AndroidAirDropModeIssueView.swift in Sources */,
 				EB3B9F542EF7151900D6704E /* FirewallIssueView.swift in Sources */,
 				EB3B9F552EF7151900D6704E /* ApIsolationIssueView.swift in Sources */,
 				EB3B9F562EF7151900D6704E /* ShareViewController.swift in Sources */,
@@ -1622,6 +1708,12 @@
 			target = 699DEBA02AB0573200115D22 /* QuickDropShareExtension */;
 			targetProxy = 699DEBAC2AB0573200115D22 /* PBXContainerItemProxy */;
 		};
+		C4F698F843B0C498BFC216AB /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			name = QuickDrop;
+			target = 69DA9A0D29E0BF5100A442DA /* QuickDrop */;
+			targetProxy = E14627D44A6E1CA296A9A53D /* PBXContainerItemProxy */;
+		};
 		EB3B9F8D2EF7153000D6704E /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
 			target = EB3B9F4A2EF7151900D6704E /* QuickDropShareExtensionGitHub */;
@@ -1647,6 +1739,49 @@
 /* End PBXVariantGroup section */
 
 /* Begin XCBuildConfiguration section */
+		9A4E1D6A03B4FDA5B2074DF0 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 92SDAWLN76;
+				GENERATE_INFOPLIST_FILE = YES;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+					"@loader_path/../Frameworks",
+				);
+				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.leonboettger.neardrop.tests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SDKROOT = macosx;
+				SWIFT_VERSION = 5.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/QuickDrop.app/Contents/MacOS/QuickDrop";
+			};
+			name = Release;
+		};
+		A8C87F63E411A0C639408AC5 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 92SDAWLN76;
+				GENERATE_INFOPLIST_FILE = YES;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+					"@loader_path/../Frameworks",
+				);
+				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.leonboettger.neardrop.tests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SDKROOT = macosx;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = "DEBUG $(inherited)";
+				SWIFT_VERSION = 5.0;
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/QuickDrop.app/Contents/MacOS/QuickDrop";
+			};
+			name = Debug;
+		};
 		699DEBAF2AB0573200115D22 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
@@ -1904,7 +2039,7 @@
 				ENABLE_INCOMING_NETWORK_CONNECTIONS = YES;
 				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
 				ENABLE_RESOURCE_ACCESS_AUDIO_INPUT = NO;
-				ENABLE_RESOURCE_ACCESS_BLUETOOTH = NO;
+				ENABLE_RESOURCE_ACCESS_BLUETOOTH = YES;
 				ENABLE_RESOURCE_ACCESS_CALENDARS = NO;
 				ENABLE_RESOURCE_ACCESS_CAMERA = NO;
 				ENABLE_RESOURCE_ACCESS_CONTACTS = NO;
@@ -1919,6 +2054,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
@@ -1969,7 +2106,7 @@
 				ENABLE_INCOMING_NETWORK_CONNECTIONS = YES;
 				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
 				ENABLE_RESOURCE_ACCESS_AUDIO_INPUT = NO;
-				ENABLE_RESOURCE_ACCESS_BLUETOOTH = NO;
+				ENABLE_RESOURCE_ACCESS_BLUETOOTH = YES;
 				ENABLE_RESOURCE_ACCESS_CALENDARS = NO;
 				ENABLE_RESOURCE_ACCESS_CAMERA = NO;
 				ENABLE_RESOURCE_ACCESS_CONTACTS = NO;
@@ -1984,6 +2121,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
@@ -2033,7 +2172,7 @@
 				ENABLE_INCOMING_NETWORK_CONNECTIONS = YES;
 				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
 				ENABLE_RESOURCE_ACCESS_AUDIO_INPUT = NO;
-				ENABLE_RESOURCE_ACCESS_BLUETOOTH = NO;
+				ENABLE_RESOURCE_ACCESS_BLUETOOTH = YES;
 				ENABLE_RESOURCE_ACCESS_CALENDARS = NO;
 				ENABLE_RESOURCE_ACCESS_CAMERA = NO;
 				ENABLE_RESOURCE_ACCESS_CONTACTS = NO;
@@ -2048,6 +2187,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
@@ -2099,7 +2240,7 @@
 				ENABLE_INCOMING_NETWORK_CONNECTIONS = YES;
 				ENABLE_OUTGOING_NETWORK_CONNECTIONS = YES;
 				ENABLE_RESOURCE_ACCESS_AUDIO_INPUT = NO;
-				ENABLE_RESOURCE_ACCESS_BLUETOOTH = NO;
+				ENABLE_RESOURCE_ACCESS_BLUETOOTH = YES;
 				ENABLE_RESOURCE_ACCESS_CALENDARS = NO;
 				ENABLE_RESOURCE_ACCESS_CAMERA = NO;
 				ENABLE_RESOURCE_ACCESS_CONTACTS = NO;
@@ -2114,6 +2255,8 @@
 				INFOPLIST_KEY_ITSAppUsesNonExemptEncryption = NO;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
+				INFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
+				INFOPLIST_KEY_NSBluetoothPeripheralUsageDescription = "QuickDrop uses Bluetooth for enhanced nearby device detection.";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "Copyright © 2025-2026 Leon Böttger";
 				INFOPLIST_KEY_NSLocalNetworkUsageDescription = "Local network access is needed to detect devices and transfer files over your Wi-Fi network.";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
@@ -2431,6 +2574,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		B473F6C65C8455203EA5FD18 /* Build configuration list for PBXNativeTarget "QuickDropTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9A4E1D6A03B4FDA5B2074DF0 /* Release */,
+				A8C87F63E411A0C639408AC5 /* Debug */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 		EB3B9F452EF7150400D6704E /* Build configuration list for PBXNativeTarget "QuickDropGitHub" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (

QuickDrop.xcodeproj/xcshareddata/xcschemes/QuickDropTests.xcscheme

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

QuickDrop/AppDelegate.swift

@@ -7,6 +7,7 @@
 
 import AudioToolbox
 import BezelNotification
+import Combine
 import Cocoa
 import Network
 import StoreKit
@@ -27,15 +28,22 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
     private var errorAlertHandler = ErrorAlertHandler.shared
 
     private var receiveModel: ReceiveModel?
+    private var bluetoothAuthorizationObserver: AnyCancellable?
     private let welcomeNavigationState = WelcomeScreenNavigationState()
 
     var showsFirewallAlert = false
     var visibleItem: NSMenuItem? = nil
+    private var didShowAndroidAirDropModeAlert = false
 
     
     // MARK: NSApplicationDelegate functions
     
     func applicationDidFinishLaunching(_: Notification) {
+        if ProcessInfo.processInfo.environment["XCTestConfigurationFilePath"] != nil {
+            LUIInit(configuration: configuration)
+            return
+        }
+
         UNUserNotificationCenter.current().delegate = self
 
         // app did not lauch before
@@ -120,6 +128,9 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
         NearbyConnectionManager.shared.changedDeviceNameCallback = {
             self.visibleItem?.title = self.getDefaultVisibleLabel()
         }
+
+        setupAndroidAirDropModeDetection()
+        requestBluetoothPermissionForExistingUserIfNeeded()
         
         
         // MARK: Logging
@@ -183,6 +194,7 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
     func applicationWillTerminate(_: Notification) {
         UNUserNotificationCenter.current().removeAllDeliveredNotifications()
         ClipboardSyncCoordinator.shared.stop()
+        AndroidAirDropModeDetector.shared.stop()
         NearbyConnectionManager.shared.stopDeviceDiscovery()
         NearbyConnectionManager.shared.becomeInvisible()
     }
@@ -419,6 +431,58 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
             }
         }
     }
+
+    private func setupAndroidAirDropModeDetection() {
+        log("[AppDelegate] Setting up Android AirDrop mode detection. authorization=\(BluetoothPermissionManager.shared.authorization.rawValue)")
+
+        bluetoothAuthorizationObserver = BluetoothPermissionManager.shared.$authorization
+            .removeDuplicates()
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] authorization in
+                guard let self else { return }
+
+                log("[AppDelegate] Bluetooth authorization changed for Android AirDrop mode detection: \(authorization.rawValue)")
+
+                if authorization == .allowedAlways {
+                    self.startAndroidAirDropModeDetection()
+                }
+                else {
+                    AndroidAirDropModeDetector.shared.stop()
+                }
+            }
+
+        BluetoothPermissionManager.shared.refresh()
+    }
+
+    private func requestBluetoothPermissionForExistingUserIfNeeded() {
+        let bluetoothPermission = BluetoothPermissionManager.shared
+        bluetoothPermission.refresh()
+
+        guard Settings.sharedInstance.appLaunchedBefore, bluetoothPermission.canRequestPermission else { return }
+
+        log("[AppDelegate] Requesting Bluetooth permission for existing user.")
+
+        bluetoothPermission.requestPermission { allowed in
+            log("[AppDelegate] Existing user Bluetooth permission request completed. allowed=\(allowed)")
+        }
+    }
+
+    private func startAndroidAirDropModeDetection() {
+        guard !didShowAndroidAirDropModeAlert else { return }
+
+        AndroidAirDropModeDetector.shared.start { [weak self] _ in
+            DispatchQueue.main.async {
+                self?.showAndroidAirDropModeAlertIfNeeded()
+            }
+        }
+    }
+
+    private func showAndroidAirDropModeAlertIfNeeded() {
+        guard !didShowAndroidAirDropModeAlert else { return }
+
+        didShowAndroidAirDropModeAlert = true
+        ErrorAlertHandler.shared.openAlert(type: .AndroidAirDropMode)
+    }
     
     
     private func getDefaultVisibleLabel() -> String {

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

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

QuickDrop/InfoPlist.xcstrings

@@ -27,6 +27,472 @@
       },
       "shouldTranslate" : false
     },
+    "NSBluetoothAlwaysUsageDescription" : {
+      "comment" : "Privacy - Bluetooth Always Usage Description",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "يستخدم QuickDrop تقنية Bluetooth لتحسين اكتشاف الأجهزة القريبة."
+          }
+        },
+        "ca" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilitza Bluetooth per millorar la detecció de dispositius propers."
+          }
+        },
+        "cs" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop používá Bluetooth pro vylepšenou detekci zařízení v okolí."
+          }
+        },
+        "da" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruger Bluetooth til forbedret registrering af enheder i nærheden."
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop verwendet Bluetooth für eine verbesserte Erkennung von Geräten in der Nähe."
+          }
+        },
+        "el" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Το QuickDrop χρησιμοποιεί Bluetooth για βελτιωμένο εντοπισμό κοντινών συσκευών."
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-AU" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-GB" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "es-419" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "fi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop käyttää Bluetoothia läheisten laitteiden parempaan havaitsemiseen."
+          }
+        },
+        "fr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "he" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop משתמש ב-Bluetooth לזיהוי משופר של מכשירים בקרבת מקום."
+          }
+        },
+        "hi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop आस-पास के डिवाइस की बेहतर पहचान के लिए Bluetooth का उपयोग करता है।"
+          }
+        },
+        "hr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop koristi Bluetooth za poboljšano otkrivanje uređaja u blizini."
+          }
+        },
+        "hu" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "A QuickDrop Bluetoothot használ a közeli eszközök fejlettebb felismeréséhez."
+          }
+        },
+        "id" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk deteksi perangkat terdekat yang lebih baik."
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa il Bluetooth per un rilevamento migliorato dei dispositivi nelle vicinanze."
+          }
+        },
+        "ja" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDropは、近くのデバイスをより正確に検出するためにBluetoothを使用します。"
+          }
+        },
+        "ko" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop은 주변 기기를 더 잘 감지하기 위해 Bluetooth를 사용합니다."
+          }
+        },
+        "ms" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk pengesanan peranti berdekatan yang dipertingkatkan."
+          }
+        },
+        "nb" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruker Bluetooth for forbedret oppdagelse av enheter i nærheten."
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop gebruikt Bluetooth voor verbeterde detectie van apparaten in de buurt."
+          }
+        },
+        "pl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop używa Bluetooth do ulepszonego wykrywania pobliskich urządzeń."
+          }
+        },
+        "pt-BR" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a detecção de dispositivos próximos."
+          }
+        },
+        "pt-PT" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a deteção de dispositivos próximos."
+          }
+        },
+        "ro" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop folosește Bluetooth pentru detectarea îmbunătățită a dispozitivelor din apropiere."
+          }
+        },
+        "ru" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop использует Bluetooth для улучшенного обнаружения устройств поблизости."
+          }
+        },
+        "sv" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop använder Bluetooth för förbättrad upptäckt av enheter i närheten."
+          }
+        },
+        "th" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop ใช้ Bluetooth เพื่อการตรวจจับอุปกรณ์ใกล้เคียงที่ดียิ่งขึ้น"
+          }
+        },
+        "tr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop, yakındaki cihazları daha iyi algılamak için Bluetooth kullanır."
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop використовує Bluetooth для покращеного виявлення пристроїв поблизу."
+          }
+        },
+        "vi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop sử dụng Bluetooth để phát hiện thiết bị lân cận tốt hơn."
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用蓝牙来增强附近设备检测。"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用藍牙來增強附近裝置偵測。"
+          }
+        }
+      }
+    },
+    "NSBluetoothPeripheralUsageDescription" : {
+      "comment" : "Privacy - Bluetooth Peripheral Usage Description",
+      "localizations" : {
+        "ar" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "يستخدم QuickDrop تقنية Bluetooth لتحسين اكتشاف الأجهزة القريبة."
+          }
+        },
+        "ca" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilitza Bluetooth per millorar la detecció de dispositius propers."
+          }
+        },
+        "cs" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop používá Bluetooth pro vylepšenou detekci zařízení v okolí."
+          }
+        },
+        "da" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruger Bluetooth til forbedret registrering af enheder i nærheden."
+          }
+        },
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop verwendet Bluetooth für eine verbesserte Erkennung von Geräten in der Nähe."
+          }
+        },
+        "el" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Το QuickDrop χρησιμοποιεί Bluetooth για βελτιωμένο εντοπισμό κοντινών συσκευών."
+          }
+        },
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-AU" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "en-GB" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop uses Bluetooth for enhanced nearby device detection."
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "es-419" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa Bluetooth para mejorar la detección de dispositivos cercanos."
+          }
+        },
+        "fi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop käyttää Bluetoothia läheisten laitteiden parempaan havaitsemiseen."
+          }
+        },
+        "fr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop utilise le Bluetooth pour améliorer la détection des appareils à proximité."
+          }
+        },
+        "he" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop משתמש ב-Bluetooth לזיהוי משופר של מכשירים בקרבת מקום."
+          }
+        },
+        "hi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop आस-पास के डिवाइस की बेहतर पहचान के लिए Bluetooth का उपयोग करता है।"
+          }
+        },
+        "hr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop koristi Bluetooth za poboljšano otkrivanje uređaja u blizini."
+          }
+        },
+        "hu" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "A QuickDrop Bluetoothot használ a közeli eszközök fejlettebb felismeréséhez."
+          }
+        },
+        "id" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk deteksi perangkat terdekat yang lebih baik."
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop usa il Bluetooth per un rilevamento migliorato dei dispositivi nelle vicinanze."
+          }
+        },
+        "ja" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDropは、近くのデバイスをより正確に検出するためにBluetoothを使用します。"
+          }
+        },
+        "ko" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop은 주변 기기를 더 잘 감지하기 위해 Bluetooth를 사용합니다."
+          }
+        },
+        "ms" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop menggunakan Bluetooth untuk pengesanan peranti berdekatan yang dipertingkatkan."
+          }
+        },
+        "nb" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop bruker Bluetooth for forbedret oppdagelse av enheter i nærheten."
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop gebruikt Bluetooth voor verbeterde detectie van apparaten in de buurt."
+          }
+        },
+        "pl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop używa Bluetooth do ulepszonego wykrywania pobliskich urządzeń."
+          }
+        },
+        "pt-BR" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a detecção de dispositivos próximos."
+          }
+        },
+        "pt-PT" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "O QuickDrop usa Bluetooth para melhorar a deteção de dispositivos próximos."
+          }
+        },
+        "ro" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop folosește Bluetooth pentru detectarea îmbunătățită a dispozitivelor din apropiere."
+          }
+        },
+        "ru" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop использует Bluetooth для улучшенного обнаружения устройств поблизости."
+          }
+        },
+        "sv" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop använder Bluetooth för förbättrad upptäckt av enheter i närheten."
+          }
+        },
+        "th" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop ใช้ Bluetooth เพื่อการตรวจจับอุปกรณ์ใกล้เคียงที่ดียิ่งขึ้น"
+          }
+        },
+        "tr" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop, yakındaki cihazları daha iyi algılamak için Bluetooth kullanır."
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop використовує Bluetooth для покращеного виявлення пристроїв поблизу."
+          }
+        },
+        "vi" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop sử dụng Bluetooth để phát hiện thiết bị lân cận tốt hơn."
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用蓝牙来增强附近设备检测。"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "QuickDrop 使用藍牙來增強附近裝置偵測。"
+          }
+        }
+      }
+    },
     "NSHumanReadableCopyright" : {
       "comment" : "Copyright (human-readable)",
       "extractionState" : "extracted_with_value",
@@ -742,4 +1208,4 @@
     }
   },
   "version" : "1.0"
-}
+}

QuickDrop/Util/AndroidAirDropModeDetector.swift

@@ -0,0 +1,229 @@
+//
+//  AndroidAirDropModeDetector.swift
+//  QuickDrop
+//
+//  Created by Leon Böttger on 10.06.26.
+//
+
+import CoreBluetooth
+import Foundation
+import LUI
+
+struct AndroidAirDropAdvertisement: Equatable {
+    let rssi: Int
+    let manufacturerDataHex: String?
+    let serviceUUIDs: Set<String>
+
+    init(rssi: Int, manufacturerDataHex: String?, serviceUUIDs: Set<String>) {
+        self.rssi = rssi
+        self.manufacturerDataHex = manufacturerDataHex?.lowercased()
+        self.serviceUUIDs = Set(serviceUUIDs.map { $0.uppercased() })
+    }
+}
+
+struct AndroidAirDropModeObservation: Equatable {
+    let airDropModePacketCount: Int
+    let strongestAirDropModeRSSI: Int?
+    let minimumRSSI: Int
+    let requiredPacketsPerSignal: Int
+
+    var isDetected: Bool {
+        airDropModePacketCount >= requiredPacketsPerSignal
+    }
+}
+
+struct AndroidAirDropModeClassifier {
+    static let defaultMinimumRSSI = -70
+    static let defaultRequiredPacketsPerSignal = 2
+
+    static let airDropModeManufacturerPrefix = "4c000512000000000000000001"
+    static let airDropModeServiceUUID = "FCF1"
+
+    let minimumRSSI: Int
+    let requiredPacketsPerSignal: Int
+
+    private(set) var airDropModePacketCount = 0
+    private(set) var strongestAirDropModeRSSI: Int?
+
+    init(
+        minimumRSSI: Int = Self.defaultMinimumRSSI,
+        requiredPacketsPerSignal: Int = Self.defaultRequiredPacketsPerSignal
+    ) {
+        self.minimumRSSI = minimumRSSI
+        self.requiredPacketsPerSignal = requiredPacketsPerSignal
+    }
+
+    var observation: AndroidAirDropModeObservation {
+        AndroidAirDropModeObservation(
+            airDropModePacketCount: airDropModePacketCount,
+            strongestAirDropModeRSSI: strongestAirDropModeRSSI,
+            minimumRSSI: minimumRSSI,
+            requiredPacketsPerSignal: requiredPacketsPerSignal
+        )
+    }
+
+    mutating func reset() {
+        airDropModePacketCount = 0
+        strongestAirDropModeRSSI = nil
+    }
+
+    @discardableResult
+    mutating func record(_ advertisement: AndroidAirDropAdvertisement) -> AndroidAirDropModeObservation {
+        guard advertisement.rssi >= minimumRSSI else {
+            return observation
+        }
+
+        if Self.isAirDropModeAdvertisement(advertisement) {
+            airDropModePacketCount += 1
+            strongestAirDropModeRSSI = Self.strongerRSSI(strongestAirDropModeRSSI, advertisement.rssi)
+        }
+
+        return observation
+    }
+
+    static func isAirDropModeAdvertisement(_ advertisement: AndroidAirDropAdvertisement) -> Bool {
+        advertisement.manufacturerDataHex?.hasPrefix(airDropModeManufacturerPrefix) == true &&
+        advertisement.serviceUUIDs.contains(airDropModeServiceUUID)
+    }
+
+    private static func strongerRSSI(_ current: Int?, _ candidate: Int) -> Int {
+        guard let current else { return candidate }
+        return max(current, candidate)
+    }
+}
+
+final class AndroidAirDropModeDetector: NSObject, CBCentralManagerDelegate {
+    static let shared = AndroidAirDropModeDetector()
+    static let scanServiceUUIDs = [CBUUID(string: AndroidAirDropModeClassifier.airDropModeServiceUUID)]
+    static let scanOptions: [String: Any] = [CBCentralManagerScanOptionAllowDuplicatesKey: true]
+
+    private var centralManager: CBCentralManager?
+    private var classifier = AndroidAirDropModeClassifier()
+    private var onDetected: ((AndroidAirDropModeObservation) -> Void)?
+    private var isScanning = false
+    private var hasDeliveredDetection = false
+
+    func start(onDetected: @escaping (AndroidAirDropModeObservation) -> Void) {
+        guard BluetoothPermissionManager.shared.isAllowed else {
+            log("[AndroidAirDropModeDetector] Bluetooth permission is not granted; skipping scan. authorization=\(BluetoothPermissionManager.shared.authorization.rawValue)")
+            return
+        }
+
+        self.onDetected = onDetected
+
+        guard !hasDeliveredDetection else { return }
+        guard !isScanning else { return }
+
+        log("[AndroidAirDropModeDetector] Starting detector.")
+
+        classifier.reset()
+
+        if centralManager == nil {
+            log("[AndroidAirDropModeDetector] Creating central manager.")
+            centralManager = CBCentralManager(delegate: self, queue: .main)
+        }
+        else if centralManager?.state == .poweredOn {
+            beginScanning()
+        }
+    }
+
+    func stop() {
+        log("[AndroidAirDropModeDetector] Stopping detector.")
+        centralManager?.stopScan()
+        classifier.reset()
+        onDetected = nil
+        hasDeliveredDetection = false
+        isScanning = false
+    }
+
+    func centralManagerDidUpdateState(_ central: CBCentralManager) {
+        log("[AndroidAirDropModeDetector] Central state changed: \(central.state.rawValue)")
+
+        guard central.state == .poweredOn else {
+            if isScanning {
+                central.stopScan()
+                isScanning = false
+            }
+            return
+        }
+
+        if onDetected != nil {
+            beginScanning()
+        }
+    }
+
+    func centralManager(
+        _ central: CBCentralManager,
+        didDiscover peripheral: CBPeripheral,
+        advertisementData: [String: Any],
+        rssi RSSI: NSNumber
+    ) {
+        guard !hasDeliveredDetection else { return }
+
+        let advertisement = Self.advertisement(from: advertisementData, rssi: RSSI.intValue)
+        let observation = classifier.record(advertisement)
+
+        guard observation.isDetected else { return }
+
+        hasDeliveredDetection = true
+        isScanning = false
+        central.stopScan()
+
+        let callback = onDetected
+        onDetected = nil
+
+        log(
+            "[AndroidAirDropModeDetector] Detected Android AirDrop-compatible sharing mode. " +
+            "airDropModePackets=\(observation.airDropModePacketCount), " +
+            "minimumRSSI=\(observation.minimumRSSI)"
+        )
+
+        callback?(observation)
+    }
+
+    private func beginScanning() {
+        guard !isScanning, let centralManager, centralManager.state == .poweredOn else { return }
+
+        log("[AndroidAirDropModeDetector] BLE scan started for service \(AndroidAirDropModeClassifier.airDropModeServiceUUID).")
+
+        // Duplicate delivery is intentional: the classifier waits for repeated
+        // matching packets so one transient advertisement does not trigger the alert.
+        centralManager.scanForPeripherals(
+            withServices: Self.scanServiceUUIDs,
+            options: Self.scanOptions
+        )
+        isScanning = true
+    }
+
+    private static func advertisement(
+        from advertisementData: [String: Any],
+        rssi: Int
+    ) -> AndroidAirDropAdvertisement {
+        var serviceUUIDs = Set<String>()
+
+        [
+            CBAdvertisementDataServiceUUIDsKey,
+            CBAdvertisementDataOverflowServiceUUIDsKey,
+            CBAdvertisementDataSolicitedServiceUUIDsKey
+        ].forEach { key in
+            guard let uuids = advertisementData[key] as? [CBUUID] else { return }
+            uuids.forEach { serviceUUIDs.insert($0.uuidString) }
+        }
+
+        if let serviceData = advertisementData[CBAdvertisementDataServiceDataKey] as? [CBUUID: Data] {
+            serviceData.keys.forEach { serviceUUIDs.insert($0.uuidString) }
+        }
+
+        return AndroidAirDropAdvertisement(
+            rssi: rssi,
+            manufacturerDataHex: (advertisementData[CBAdvertisementDataManufacturerDataKey] as? Data)?.androidAirDropModeHexString,
+            serviceUUIDs: serviceUUIDs
+        )
+    }
+}
+
+private extension Data {
+    var androidAirDropModeHexString: String {
+        map { String(format: "%02x", $0) }.joined()
+    }
+}

QuickDrop/Util/BluetoothPermissionManager.swift

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

QuickDrop/Util/ErrorAlertHandler.swift

@@ -27,6 +27,7 @@ class ErrorAlertHandler {
     private var firewallAlertWindow: NSWindow?
     private var apIsolationAlertWindow: NSWindow?
     private var networkFilterAlertWindow: NSWindow?
+    private var androidAirDropModeAlertWindow: NSWindow?
     #endif
     
     func showErrorAlert(for deviceName: String, error: Error) {
@@ -124,6 +125,11 @@ class ErrorAlertHandler {
         AudioManager.playErrorSound()
 
         DispatchQueue.main.async { [self] in
+            if let existingWindow = alertWindow(for: type), existingWindow.isVisible {
+                bringAlertWindowToFront(existingWindow)
+                return
+            }
+
             // Create an NSWindow to host the SwiftUI view
             let alertWindow = NSWindow(
                 contentRect: NSRect(x: 0, y: 0, width: issueViewWidth, height: issueViewHeight),
@@ -142,6 +148,9 @@ class ErrorAlertHandler {
             case .Firewall:
                 firewallAlertWindow = alertWindow
                 alertWindow.contentView = NSHostingView(rootView: FirewallIssueView())
+            case .AndroidAirDropMode:
+                androidAirDropModeAlertWindow = alertWindow
+                alertWindow.contentView = NSHostingView(rootView: AndroidAirDropModeIssueView())
             }
 
             alertWindow.title = "QuickDrop"
@@ -149,9 +158,8 @@ class ErrorAlertHandler {
             alertWindow.isReleasedWhenClosed = false
             alertWindow.setFrameAutosaveName(type.rawValue)
 
-            NSApp.activate(ignoringOtherApps: true)
-            alertWindow.makeKeyAndOrderFront(nil)
             alertWindow.level = .normal
+            bringAlertWindowToFront(alertWindow)
         }
     }
     
@@ -163,6 +171,26 @@ class ErrorAlertHandler {
             self.apIsolationAlertWindow = nil
         }
     }
+
+    private func alertWindow(for type: AlertType) -> NSWindow? {
+        switch type {
+        case .ApIsolation:
+            return apIsolationAlertWindow
+        case .NetworkFilter:
+            return networkFilterAlertWindow
+        case .Firewall:
+            return firewallAlertWindow
+        case .AndroidAirDropMode:
+            return androidAirDropModeAlertWindow
+        }
+    }
+
+    private func bringAlertWindowToFront(_ window: NSWindow) {
+        _ = NSApp.setActivationPolicy(.regular)
+        NSApp.activate(ignoringOtherApps: true)
+        window.makeKeyAndOrderFront(nil)
+        window.orderFrontRegardless()
+    }
     #endif
 }
 
@@ -171,4 +199,5 @@ enum AlertType: String {
     case ApIsolation
     case NetworkFilter
     case Firewall
+    case AndroidAirDropMode
 }

QuickDrop/View/Introduction/IntroductionView.swift

@@ -14,6 +14,8 @@ struct IntroductionView: View {
     static let height: CGFloat = 540
     
     @Environment(\.colorScheme) private var colorScheme
+    @Environment(\.scenePhase) private var scenePhase
+    @ObservedObject private var bluetooth = BluetoothPermissionManager.shared
     @State private var currentPage: IntroductionPage = .splash
 
     @State private var pollingPage: IntroductionPage? = nil
@@ -120,6 +122,10 @@ struct IntroductionView: View {
         .onChange(of: currentPage) { newValue in
             pageDidChange(to: newValue)
         }
+        .onChange(of: scenePhase) { newValue in
+            guard newValue == .active, currentPage == .bluetoothAccess else { return }
+            refreshBluetoothPermissionAndAdvanceIfAllowed()
+        }
         .task(id: pollingPage) {
             guard let page = pollingPage else { return }
             
@@ -181,6 +187,11 @@ struct IntroductionView: View {
     
 
     private func continueTapped() {
+        if currentPage == .bluetoothAccess {
+            continueBluetoothPermission()
+            return
+        }
+
         // If already allowed, advance immediately
         if currentPage.canContinue() {
             advance()
@@ -197,13 +208,57 @@ struct IntroductionView: View {
     }
 
     
+    private func continueBluetoothPermission() {
+        bluetooth.refresh()
+
+        if bluetooth.isAllowed {
+            advance()
+            return
+        }
+
+        pollingPage = .bluetoothAccess
+
+        guard bluetooth.canRequestPermission else {
+            bluetooth.openSystemBluetoothSettings()
+            return
+        }
+
+        bluetooth.requestPermission { allowed in
+            DispatchQueue.main.async {
+                guard currentPage == .bluetoothAccess else {
+                    stopPolling()
+                    return
+                }
+
+                if allowed {
+                    stopPolling()
+                    advance()
+                }
+                else {
+                    pollingPage = .bluetoothAccess
+                }
+            }
+        }
+    }
+
+
+    private func refreshBluetoothPermissionAndAdvanceIfAllowed() {
+        bluetooth.refresh()
+
+        guard currentPage == .bluetoothAccess, bluetooth.isAllowed else { return }
+
+        stopPolling()
+        advance()
+    }
+
+
     private func advance() {
-        
+
         if currentPage == .localNetworkAccess {
             let _ = DeviceToDeviceHeuristicScanner.shared.hasLocalNetworkAccess(completion: {_ in })
             triggerLocalNetworkPermission()
         }
-        
+
         if let nextPage = currentPage.presentNextPage() {
             currentPage = nextPage
         } else {
@@ -223,6 +278,7 @@ enum IntroductionPage: CaseIterable {
     case splash
     case noWifi
     case localNetworkAccess
+    case bluetoothAccess
     case enableShareExtension
     case finished
     
@@ -234,6 +290,8 @@ enum IntroductionPage: CaseIterable {
             return "introduction_no_wifi"
         case .localNetworkAccess:
             return "introduction_local_network_access"
+        case .bluetoothAccess:
+            return "BluetoothPermissionRequiredTitle"
         case .enableShareExtension:
             return "introduction_enable_share_extension"
         case .finished:
@@ -250,6 +308,8 @@ enum IntroductionPage: CaseIterable {
             return "introduction_no_wifi_description"
         case .localNetworkAccess:
             return "introduction_local_network_access_description".localized(with: "introduction_continue".localized())
+        case .bluetoothAccess:
+            return "BluetoothPermissionRequiredSubtitle"
         case .enableShareExtension:
             if #available(macOS 13.0, *) {
                 return "introduction_enable_share_extension_description".localized(with: "EnableQuickDropExtension".localized())
@@ -267,6 +327,8 @@ enum IntroductionPage: CaseIterable {
         switch self {
         case .noWifi:
             return .init(action: presentNextPage, warningTitle: "introduction_no_wifi_skip_title", warningMessage: "introduction_no_wifi_skip_message")
+        case .bluetoothAccess:
+            return .init(action: { .enableShareExtension }, warningTitle: "BluetoothPermissionSkipAlertTitle", warningMessage: "BluetoothPermissionSkipAlertMessage")
         default:
             return nil
         }
@@ -290,6 +352,8 @@ enum IntroductionPage: CaseIterable {
         case .noWifi:
             return firstPermissionPane()
         case .localNetworkAccess:
+            return .bluetoothAccess
+        case .bluetoothAccess:
             return .enableShareExtension
         case .enableShareExtension:
             return .finished
@@ -304,7 +368,7 @@ enum IntroductionPage: CaseIterable {
             // Local network access is requested first on macOS 15+
             return .localNetworkAccess
         }
-        return .enableShareExtension
+        return .bluetoothAccess
     }
     
     
@@ -312,6 +376,8 @@ enum IntroductionPage: CaseIterable {
         switch self {
             case .noWifi:
                 return NearbyConnectionManager.shared.isConnectedToLocalNetwork
+            case .bluetoothAccess:
+                return BluetoothPermissionManager.shared.isAllowed
             default:
                 return true
         }
@@ -332,6 +398,8 @@ enum IntroductionPage: CaseIterable {
                 imageView(for: "wifi.slash", with: height)
             case .localNetworkAccess:
                 imageView(for: "network", with: height)
+            case .bluetoothAccess:
+                imageView(for: "antenna.radiowaves.left.and.right", with: height)
             case .enableShareExtension:
                 imageView(for: "square.and.arrow.up", with: height)
             case .finished:
@@ -350,8 +418,7 @@ enum IntroductionPage: CaseIterable {
             .frame(height: height * 0.5)
             .padding(.top, height * 0.13)
     }
-    
+
-    
     struct SkipAction: Identifiable {
         let action: () -> IntroductionPage?
         let warningTitle: String

QuickDrop/View/IssueViews/AndroidAirDropModeIssueView.swift

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

QuickDrop/View/UserManual/TutorialView.swift

@@ -41,9 +41,9 @@ struct TutorialView: View {
                 
                 if tab == .receive {
                     Button {
-                        showSamsungOneUI85Alert()
+                        showAndroidAirDropModeAlert()
                     } label: {
-                        Text("SamsungOneUI85HelpLink".localized())
+                        Text("AndroidAirDropModeHelpLink".localized())
                             .underline()
                             .font(.footnote)
                             .multilineTextAlignment(.center)
@@ -68,11 +68,11 @@ struct TutorialView: View {
         }
     }
     
-    private func showSamsungOneUI85Alert() {
+    private func showAndroidAirDropModeAlert() {
         let alert = NSAlert()
         alert.alertStyle = .informational
-        alert.messageText = "SamsungOneUI85AlertTitle".localized()
+        alert.messageText = "AndroidAirDropModeAlertTitle".localized()
-        alert.informativeText = "SamsungOneUI85AlertMessage".localized()
+        alert.informativeText = "AndroidAirDropModeAlertMessage".localized()
         alert.addButton(withTitle: "CloseAlert".localized())
 
         if let window = NSApp.mainWindow ?? NSApp.keyWindow {

QuickDropTests/AndroidAirDropModeDetectorTests.swift

@@ -0,0 +1,96 @@
+import Foundation
+import CoreBluetooth
+import Testing
+@testable import QuickDrop
+
+@Suite(.serialized)
+struct AndroidAirDropModeDetectorTests {
+    @Test
+    func detectsWhenAirDropModeSignalsPassThreshold() {
+        var classifier = AndroidAirDropModeClassifier(minimumRSSI: -70, requiredPacketsPerSignal: 2)
+
+        let firstAirDropMode = classifier.record(.airDropMode(rssi: -58))
+        #expect(!firstAirDropMode.isDetected)
+
+        let detected = classifier.record(.airDropMode(rssi: -56))
+        #expect(detected.isDetected)
+        #expect(detected.airDropModePacketCount == 2)
+        #expect(detected.strongestAirDropModeRSSI == -56)
+    }
+
+    @Test
+    func matchesObservedMoseyAirDropSuffixVariants() {
+        #expect(
+            AndroidAirDropModeClassifier.isAirDropModeAdvertisement(
+                .airDropMode(manufacturerDataSuffix: "28b429412f624af300", rssi: -58)
+            )
+        )
+        #expect(
+            AndroidAirDropModeClassifier.isAirDropModeAdvertisement(
+                .airDropMode(manufacturerDataSuffix: "03b429412f624af300", rssi: -58)
+            )
+        )
+    }
+
+    @Test
+    func ignoresSignalsBelowRSSIThreshold() {
+        var classifier = AndroidAirDropModeClassifier(minimumRSSI: -70, requiredPacketsPerSignal: 2)
+
+        classifier.record(.airDropMode(rssi: -72))
+        let observation = classifier.record(.airDropMode(rssi: -85))
+
+        #expect(!observation.isDetected)
+        #expect(observation.airDropModePacketCount == 0)
+    }
+
+    @Test
+    func ignoresNearbyAppleAndBackgroundFCF1Advertisements() {
+        var classifier = AndroidAirDropModeClassifier(minimumRSSI: -70, requiredPacketsPerSignal: 1)
+
+        classifier.record(.advertisement(rssi: -50, manufacturerDataHex: "4c001006031dc4e5be78", serviceUUIDs: []))
+        classifier.record(.advertisement(rssi: -55, manufacturerDataHex: nil, serviceUUIDs: ["FCF1"]))
+        classifier.record(.advertisement(rssi: -56, manufacturerDataHex: "4c00051200000000000000000128b429412f624af300", serviceUUIDs: []))
+        let observation = classifier.record(
+            .advertisement(
+                rssi: -56,
+                manufacturerDataHex: "4c00051200000000000000000028b429412f624af300",
+                serviceUUIDs: ["FCF1"]
+            )
+        )
+
+        #expect(!observation.isDetected)
+        #expect(observation.airDropModePacketCount == 0)
+    }
+
+    @Test
+    func scansOnlyForAirDropModeServiceAndAllowsDuplicatePackets() {
+        #expect(AndroidAirDropModeDetector.scanServiceUUIDs.map(\.uuidString) == [AndroidAirDropModeClassifier.airDropModeServiceUUID])
+        #expect(AndroidAirDropModeDetector.scanOptions[CBCentralManagerScanOptionAllowDuplicatesKey] as? Bool == true)
+    }
+}
+
+private extension AndroidAirDropAdvertisement {
+    static func airDropMode(rssi: Int) -> Self {
+        airDropMode(manufacturerDataSuffix: "28b429412f624af300", rssi: rssi)
+    }
+
+    static func airDropMode(manufacturerDataSuffix: String, rssi: Int) -> Self {
+        advertisement(
+            rssi: rssi,
+            manufacturerDataHex: "4c000512000000000000000001\(manufacturerDataSuffix)",
+            serviceUUIDs: ["FCF1"]
+        )
+    }
+
+    static func advertisement(
+        rssi: Int,
+        manufacturerDataHex: String?,
+        serviceUUIDs: Set<String>
+    ) -> Self {
+        AndroidAirDropAdvertisement(
+            rssi: rssi,
+            manufacturerDataHex: manufacturerDataHex,
+            serviceUUIDs: serviceUUIDs
+        )
+    }
+}