diff --git a/CHANGELOG.md b/CHANGELOG.md
index 481e5f0..5e29179 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
+- **Flow Live Activity**: Dynamic Island shows the OSGKeyboard brand mark during an active voice session (ActivityKit widget extension). / **Flow 灵动岛 Live Activity**：语音会话期间在灵动岛显示 OSGKeyboard 品牌标识（ActivityKit 小组件扩展）。
 - **Xiaomi MiMo cloud provider**: preset for the cloud engine with `mimo-v2.5` polish via `api.xiaomimimo.com` (on-device ASR, same pipeline as other online providers). / **小米 MiMo 云端引擎**：云端引擎新增预设，经 `api.xiaomimimo.com` 使用 `mimo-v2.5` 润色（端侧 ASR，与其他在线服务相同管线）。
 
 ### Changed
diff --git a/OSGKeyboard/Info.plist b/OSGKeyboard/Info.plist
index 39fe503..c16f9f1 100644
--- a/OSGKeyboard/Info.plist
+++ b/OSGKeyboard/Info.plist
@@ -58,6 +58,8 @@
 	<array>
 		<string>audio</string>
 	</array>
+	<key>NSSupportsLiveActivities</key>
+	<true/>
 	<key>UILaunchScreen</key>
 	<dict>
 		<key>UIColorName</key>
diff --git a/OSGKeyboard/Services/FlowLiveActivityController.swift b/OSGKeyboard/Services/FlowLiveActivityController.swift
new file mode 100644
index 0000000..0fbaf44
--- /dev/null
+++ b/OSGKeyboard/Services/FlowLiveActivityController.swift
@@ -0,0 +1,76 @@
+// FlowLiveActivityController.swift
+// OSGKeyboard · Main App
+//
+// Starts and updates the Flow Live Activity so the Dynamic Island shows the
+// OSGKeyboard brand mark while a voice session is active.
+
+import ActivityKit
+import Foundation
+import OSGKeyboardShared
+
+@MainActor
+enum FlowLiveActivityController {
+    private static var currentActivity: Activity<FlowActivityAttributes>?
+
+    /// Begin showing OSGKeyboard in the Dynamic Island for an active Flow session.
+    static func startSession() {
+        guard ActivityAuthorizationInfo().areActivitiesEnabled else {
+            debug("Live Activity disabled in Settings")
+            return
+        }
+
+        endStaleActivities()
+
+        guard currentActivity == nil else {
+            update(phase: .idle)
+            return
+        }
+
+        let state = FlowActivityAttributes.ContentState(phase: .idle)
+        let content = ActivityContent(state: state, staleDate: nil)
+
+        do {
+            currentActivity = try Activity.request(
+                attributes: FlowActivityAttributes(),
+                content: content,
+                pushType: nil
+            )
+            debug("Live Activity started")
+        } catch {
+            debug("Live Activity start failed: \(error.localizedDescription)")
+        }
+    }
+
+    static func update(phase: FlowActivityAttributes.ContentState.Phase) {
+        guard let activity = currentActivity else { return }
+        let state = FlowActivityAttributes.ContentState(phase: phase)
+        let content = ActivityContent(state: state, staleDate: nil)
+        Task {
+            await activity.update(content)
+        }
+    }
+
+    /// Dismiss the island presentation when the Flow session ends.
+    static func endSession() {
+        guard let activity = currentActivity else {
+            endStaleActivities()
+            return
+        }
+
+        currentActivity = nil
+        Task {
+            await activity.end(nil, dismissalPolicy: .immediate)
+            debug("Live Activity ended")
+        }
+    }
+
+    /// Host relaunch can leave orphan activities; clear them before starting anew.
+    private static func endStaleActivities() {
+        for activity in Activity<FlowActivityAttributes>.activities {
+            Task {
+                await activity.end(nil, dismissalPolicy: .immediate)
+            }
+        }
+        currentActivity = nil
+    }
+}
diff --git a/OSGKeyboard/Services/FlowSessionManager.swift b/OSGKeyboard/Services/FlowSessionManager.swift
index dd14afe..cb52b7a 100644
--- a/OSGKeyboard/Services/FlowSessionManager.swift
+++ b/OSGKeyboard/Services/FlowSessionManager.swift
@@ -156,6 +156,7 @@ final class FlowSessionManager: ObservableObject {
         // (e.g. switching from cloud to local) is honoured.
         bindSessionASRIfNeeded()
         scheduleASRWarmup()
+        FlowLiveActivityController.startSession()
 
         debug("Flow session restored (\(Int(remaining))s remaining)")
     }
@@ -196,6 +197,7 @@ final class FlowSessionManager: ObservableObject {
         sessionASRWarmedLocaleID = nil
         FlowSessionBridge.markSessionInactive()
         FlowSessionDarwin.postSessionChanged()
+        FlowLiveActivityController.endSession()
         isActive = false
         sessionExpiresAt = nil
         sessionWarning = nil
@@ -339,6 +341,7 @@ final class FlowSessionManager: ObservableObject {
         // while the session was idle.
         bindSessionASRIfNeeded()
         scheduleASRWarmup()
+        FlowLiveActivityController.startSession()
 
         debug("Flow session started (\(Int(duration))s), continuous capture running")
     }
@@ -437,6 +440,7 @@ final class FlowSessionManager: ObservableObject {
 
         isUtteranceRecording = true
         utteranceRecordingStartedAt = Date()
+        FlowLiveActivityController.update(phase: .recording)
         FlowDiagnostics.log(
             "beginUtterance engine=\(store.engineMode) " +
             "asrType=\(type(of: asr)) pipelined=true max=\(Int(FlowSessionKeys.maxUtteranceDuration))s"
@@ -489,6 +493,7 @@ final class FlowSessionManager: ObservableObject {
         FlowSessionBridge.setRecordingState(.processing)
         isUtteranceRecording = false
         isUtteranceProcessing = true
+        FlowLiveActivityController.update(phase: .processing)
 
         // Do NOT cancel `asrTask` or `asr` — the preview pipeline relies on
         // the consumer staying alive until `.final` lands (see
@@ -517,6 +522,7 @@ final class FlowSessionManager: ObservableObject {
         chunkWarnings = []
         FlowSessionBridge.storeTranscriptionPartial("")
         FlowSessionBridge.setRecordingState(.idle)
+        FlowLiveActivityController.update(phase: .idle)
         debug("utterance aborted")
     }
 
@@ -540,6 +546,7 @@ final class FlowSessionManager: ObservableObject {
         FlowSessionBridge.storeTranscriptionPartial("")
         FlowSessionBridge.storeTranscriptionError(message, kind: kind)
         FlowSessionBridge.setRecordingState(.idle)
+        FlowLiveActivityController.update(phase: .idle)
         debug("utterance failed: \(message)")
     }
 
@@ -558,6 +565,7 @@ final class FlowSessionManager: ObservableObject {
         FlowSessionBridge.storeTranscriptionPartial("")
         FlowSessionBridge.storeTranscriptionError(message, kind: kind)
         FlowSessionBridge.setRecordingState(.idle)
+        FlowLiveActivityController.update(phase: .idle)
         debug("utterance processing failed: \(message)")
     }
 
@@ -566,6 +574,7 @@ final class FlowSessionManager: ObservableObject {
         defer {
             isUtteranceProcessing = false
             FlowSessionBridge.setRecordingState(.idle)
+            FlowLiveActivityController.update(phase: .idle)
         }
 
         let asrWait = asrWaitTimeout()
diff --git a/OSGKeyboardExt/Info.plist b/OSGKeyboardExt/Info.plist
index 8494b88..03a1fda 100644
--- a/OSGKeyboardExt/Info.plist
+++ b/OSGKeyboardExt/Info.plist
@@ -34,7 +34,7 @@
 			<key>PrefersRightToLeft</key>
 			<false/>
 			<key>PrimaryLanguage</key>
-			<string>en-US</string>
+			<string>mis</string>
 			<key>RequestsOpenAccess</key>
 			<true/>
 		</dict>
diff --git a/OSGKeyboardExt/KeyboardViewController.swift b/OSGKeyboardExt/KeyboardViewController.swift
index 64871a6..d3f8ed7 100644
--- a/OSGKeyboardExt/KeyboardViewController.swift
+++ b/OSGKeyboardExt/KeyboardViewController.swift
@@ -54,6 +54,8 @@ public final class KeyboardViewController: UIInputViewController {
 
     public override func viewDidLoad() {
         super.viewDidLoad()
+        // Voice-first keyboard — hide the misleading "English" subtitle in Settings.
+        primaryLanguage = "mis"
         OSGLog.keyboardExt.info("viewDidLoad — extension booted")
         CustomLanguageModelManager.shared.prepareInBackgroundIfNeeded()
         setNeedsUpdateOfScreenEdgesDeferringSystemGestures()
diff --git a/OSGKeyboardLiveActivity/FlowActivityAttributes.swift b/OSGKeyboardLiveActivity/FlowActivityAttributes.swift
new file mode 100644
index 0000000..7ea949c
--- /dev/null
+++ b/OSGKeyboardLiveActivity/FlowActivityAttributes.swift
@@ -0,0 +1,22 @@
+// FlowActivityAttributes.swift
+// OSGKeyboard · Live Activity
+//
+// Shared ActivityKit model compiled into the widget extension and the
+// main app so `FlowLiveActivityController` can start/update sessions.
+
+import ActivityKit
+import Foundation
+
+/// Live Activity shown in the Dynamic Island while a Flow session is active.
+struct FlowActivityAttributes: ActivityAttributes {
+    /// Dynamic content updated as the user records and processes speech.
+    struct ContentState: Codable, Hashable, Sendable {
+        var phase: Phase
+
+        enum Phase: String, Codable, Hashable, Sendable {
+            case idle
+            case recording
+            case processing
+        }
+    }
+}
diff --git a/OSGKeyboardLiveActivity/FlowLiveActivityWidget.swift b/OSGKeyboardLiveActivity/FlowLiveActivityWidget.swift
new file mode 100644
index 0000000..8c93646
--- /dev/null
+++ b/OSGKeyboardLiveActivity/FlowLiveActivityWidget.swift
@@ -0,0 +1,146 @@
+// FlowLiveActivityWidget.swift
+// OSGKeyboard · Live Activity
+//
+// Dynamic Island compact leading shows the OSGKeyboard mark instead of the
+// generic system microphone glyph that appears without a Live Activity.
+
+import ActivityKit
+import SwiftUI
+import WidgetKit
+
+struct FlowLiveActivityWidget: Widget {
+    var body: some WidgetConfiguration {
+        ActivityConfiguration(for: FlowActivityAttributes.self) { context in
+            FlowLiveActivityLockScreenView(phase: context.state.phase)
+                .activityBackgroundTint(Color.black.opacity(0.82))
+                .activitySystemActionForegroundColor(.white)
+        } dynamicIsland: { context in
+            DynamicIsland {
+                DynamicIslandExpandedRegion(.leading) {
+                    FlowLiveActivityBrandMark(size: 28)
+                }
+                DynamicIslandExpandedRegion(.trailing) {
+                    FlowLiveActivityPhaseLabel(phase: context.state.phase)
+                }
+                DynamicIslandExpandedRegion(.center) {
+                    Text("OSGKeyboard")
+                        .font(.headline)
+                }
+                DynamicIslandExpandedRegion(.bottom) {
+                    FlowLiveActivityPhaseCaption(phase: context.state.phase)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+            } compactLeading: {
+                FlowLiveActivityBrandMark(size: 22)
+            } compactTrailing: {
+                FlowLiveActivityTrailingGlyph(phase: context.state.phase)
+            } minimal: {
+                FlowLiveActivityBrandMark(size: 18)
+            }
+            .keylineTint(Color(red: 0.35, green: 0.55, blue: 1.0))
+        }
+    }
+}
+
+// MARK: - Views
+
+private struct FlowLiveActivityLockScreenView: View {
+    let phase: FlowActivityAttributes.ContentState.Phase
+
+    var body: some View {
+        HStack(spacing: 12) {
+            FlowLiveActivityBrandMark(size: 32)
+            VStack(alignment: .leading, spacing: 4) {
+                Text("OSGKeyboard")
+                    .font(.headline)
+                FlowLiveActivityPhaseCaption(phase: phase)
+                    .font(.subheadline)
+                    .foregroundStyle(.secondary)
+            }
+            Spacer(minLength: 0)
+            FlowLiveActivityTrailingGlyph(phase: phase)
+        }
+        .padding(.horizontal, 4)
+    }
+}
+
+/// Branded mark used in compactLeading so users see OSGKeyboard, not the system mic icon.
+private struct FlowLiveActivityBrandMark: View {
+    let size: CGFloat
+
+    var body: some View {
+        ZStack {
+            Circle()
+                .fill(
+                    LinearGradient(
+                        colors: [
+                            Color(red: 0.35, green: 0.55, blue: 1.0),
+                            Color(red: 0.22, green: 0.38, blue: 0.92)
+                        ],
+                        startPoint: .topLeading,
+                        endPoint: .bottomTrailing
+                    )
+                )
+            Image(systemName: "keyboard")
+                .font(.system(size: size * 0.48, weight: .semibold))
+                .foregroundStyle(.white)
+        }
+        .frame(width: size, height: size)
+        .accessibilityLabel("OSGKeyboard")
+    }
+}
+
+private struct FlowLiveActivityTrailingGlyph: View {
+    let phase: FlowActivityAttributes.ContentState.Phase
+
+    var body: some View {
+        switch phase {
+        case .recording:
+            Image(systemName: "waveform")
+                .foregroundStyle(.red)
+                .symbolEffect(.variableColor.iterative, options: .repeating)
+        case .processing:
+            ProgressView()
+                .progressViewStyle(.circular)
+                .tint(.white)
+        case .idle:
+            Image(systemName: "mic.fill")
+                .foregroundStyle(.secondary)
+        }
+    }
+}
+
+private struct FlowLiveActivityPhaseLabel: View {
+    let phase: FlowActivityAttributes.ContentState.Phase
+
+    var body: some View {
+        switch phase {
+        case .recording:
+            Text("REC")
+                .font(.caption.monospacedDigit().weight(.bold))
+                .foregroundStyle(.red)
+        case .processing:
+            Text("…")
+                .font(.title3.weight(.semibold))
+        case .idle:
+            Image(systemName: "checkmark.circle.fill")
+                .foregroundStyle(.green)
+        }
+    }
+}
+
+private struct FlowLiveActivityPhaseCaption: View {
+    let phase: FlowActivityAttributes.ContentState.Phase
+
+    var body: some View {
+        switch phase {
+        case .idle:
+            Text("Voice session active")
+        case .recording:
+            Text("Listening…")
+        case .processing:
+            Text("Transcribing…")
+        }
+    }
+}
diff --git a/OSGKeyboardLiveActivity/Info.plist b/OSGKeyboardLiveActivity/Info.plist
new file mode 100644
index 0000000..e6a000c
--- /dev/null
+++ b/OSGKeyboardLiveActivity/Info.plist
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleDisplayName</key>
+	<string>OSGKeyboardLiveActivity</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>XPC!</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(MARKETING_VERSION)</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionPointIdentifier</key>
+		<string>com.apple.widgetkit-extension</string>
+	</dict>
+	<key>NSSupportsLiveActivities</key>
+	<true/>
+</dict>
+</plist>
diff --git a/OSGKeyboardLiveActivity/OSGKeyboardLiveActivityBundle.swift b/OSGKeyboardLiveActivity/OSGKeyboardLiveActivityBundle.swift
new file mode 100644
index 0000000..ade0cdb
--- /dev/null
+++ b/OSGKeyboardLiveActivity/OSGKeyboardLiveActivityBundle.swift
@@ -0,0 +1,12 @@
+// OSGKeyboardLiveActivityBundle.swift
+// OSGKeyboard · Live Activity
+
+import SwiftUI
+import WidgetKit
+
+@main
+struct OSGKeyboardLiveActivityBundle: WidgetBundle {
+    var body: some Widget {
+        FlowLiveActivityWidget()
+    }
+}
diff --git a/project.yml b/project.yml
index 289d29a..c34d4f0 100644
--- a/project.yml
+++ b/project.yml
@@ -64,6 +64,8 @@ targets:
           # crashes when both are passed. iOS 26 uses Icon Composer only.
           - "Assets.xcassets/AppIcon.appiconset"
           - "Resources/CustomLanguageModel/**"
+      # Shared with the Live Activity widget so the host app can request sessions.
+      - path: OSGKeyboardLiveActivity/FlowActivityAttributes.swift
     entitlements:
       path: OSGKeyboard/OSGKeyboard.entitlements
       properties:
@@ -108,6 +110,7 @@ targets:
         NSSpeechRecognitionUsageDescription: "OSGKeyboard uses on-device speech recognition to transcribe your voice. Audio is processed on your device and is not uploaded for transcription."
         UIBackgroundModes:
           - audio
+        NSSupportsLiveActivities: true
         NSAppTransportSecurity:
           NSAllowsArbitraryLoads: false
         ITSAppUsesNonExemptEncryption: false
@@ -139,7 +142,10 @@ targets:
         embed: true
       - target: OSGKeyboardExt
         # Keyboard Extension is a plugin of the main App; embed it.
+      - target: OSGKeyboardLiveActivity
+        embed: true
       - sdk: Speech.framework
+      - sdk: ActivityKit.framework
 
   # =========================================================
   # Keyboard Extension
@@ -187,7 +193,7 @@ targets:
           NSExtensionAttributes:
             IsASCIICapable: false
             PrefersRightToLeft: false
-            PrimaryLanguage: "en-US"
+            PrimaryLanguage: "mis"
             RequestsOpenAccess: true
           NSExtensionPointIdentifier: com.apple.keyboard-service
           NSExtensionPrincipalClass: $(PRODUCT_MODULE_NAME).KeyboardViewController
@@ -205,6 +211,37 @@ targets:
       - target: OSGKeyboardShared
         embed: false
 
+  # =========================================================
+  # Live Activity Widget Extension (Dynamic Island)
+  # =========================================================
+  OSGKeyboardLiveActivity:
+    type: app-extension
+    platform: iOS
+    sources:
+      - path: OSGKeyboardLiveActivity
+    info:
+      path: OSGKeyboardLiveActivity/Info.plist
+      properties:
+        CFBundleDisplayName: OSGKeyboardLiveActivity
+        CFBundleShortVersionString: "$(MARKETING_VERSION)"
+        CFBundleVersion: "$(CURRENT_PROJECT_VERSION)"
+        NSSupportsLiveActivities: true
+        NSExtension:
+          NSExtensionPointIdentifier: com.apple.widgetkit-extension
+    settings:
+      base:
+        PRODUCT_BUNDLE_IDENTIFIER: com.osgkeyboard.ios.liveactivity
+        TARGETED_DEVICE_FAMILY: "1"
+        SUPPORTS_MACCATALYST: NO
+        SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD: NO
+        SUPPORTS_XR_DESIGNED_FOR_IPHONE_IPAD: NO
+        CODE_SIGN_STYLE: Automatic
+        DEVELOPMENT_TEAM: X329MZU23S
+    dependencies:
+      - sdk: WidgetKit.framework
+      - sdk: SwiftUI.framework
+      - sdk: ActivityKit.framework
+
   # =========================================================
   # Shared Framework (主 App 与扩展共用)
   # =========================================================
@@ -284,6 +321,7 @@ schemes:
       targets:
         OSGKeyboard: all
         OSGKeyboardExt: all
+        OSGKeyboardLiveActivity: all
     run:
       config: Debug
     test: