diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6871b953cc..a4987e0f4b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -716,6 +716,7 @@ jobs:
             flet-flashlight
             flet-geolocator
             flet-lottie
+            flet-local-auth
             flet-map
             flet-permission-handler
             flet-rive
@@ -995,6 +996,7 @@ jobs:
             flet_flashlight \
             flet_geolocator \
             flet_lottie \
+            flet_local_auth \
             flet_map \
             flet_permission_handler \
             flet_rive \
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 561b94a4cd..7e1739850c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+## Unreleased
+
+### New features
+
+* Add `flet-local-auth` extension with a `LocalAuthentication` service for on-device biometric and credential authentication on Android, iOS, macOS, and Windows via the [`local_auth`](https://pub.dev/packages/local_auth) Flutter plugin. Linux and Web are not supported.
+
+### Improvements
+
+* Android host apps now use `FlutterFragmentActivity` and an AppCompat `LaunchTheme` so biometric authentication dialogs work on API 24–27. A `biometric` cross-platform permission bundle adds `NSFaceIDUsageDescription` for iOS and macOS builds.
+
 ## 0.86.3
 
 ### Bug fixes
diff --git a/client/android/app/src/main/kotlin/com/appveyor/flet_client/MainActivity.kt b/client/android/app/src/main/kotlin/com/appveyor/flet_client/MainActivity.kt
index 09f79c6fdf..0d11c624f5 100644
--- a/client/android/app/src/main/kotlin/com/appveyor/flet_client/MainActivity.kt
+++ b/client/android/app/src/main/kotlin/com/appveyor/flet_client/MainActivity.kt
@@ -1,5 +1,5 @@
 package com.appveyor.flet_client
 
-import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.android.FlutterFragmentActivity
 
-class MainActivity : FlutterActivity()
+class MainActivity : FlutterFragmentActivity()
diff --git a/client/android/app/src/main/res/values-night/styles.xml b/client/android/app/src/main/res/values-night/styles.xml
index 06952be745..eefe493f95 100644
--- a/client/android/app/src/main/res/values-night/styles.xml
+++ b/client/android/app/src/main/res/values-night/styles.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
-    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+    <style name="LaunchTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
         <!-- Show a splash screen on the activity. Automatically removed when
              the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
diff --git a/client/android/app/src/main/res/values/styles.xml b/client/android/app/src/main/res/values/styles.xml
index cb1ef88056..bf737e09b1 100644
--- a/client/android/app/src/main/res/values/styles.xml
+++ b/client/android/app/src/main/res/values/styles.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
-    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+    <style name="LaunchTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
         <!-- Show a splash screen on the activity. Automatically removed when
              the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
diff --git a/client/ios/Runner/Info.plist b/client/ios/Runner/Info.plist
index e813d8bc18..a2fa860be0 100644
--- a/client/ios/Runner/Info.plist
+++ b/client/ios/Runner/Info.plist
@@ -37,6 +37,8 @@
 	</dict>
 	<key>NSCameraUsageDescription</key>
 	<string>This app uses the camera to capture photos and video.</string>
+	<key>NSFaceIDUsageDescription</key>
+	<string>This app uses biometrics to authenticate you.</string>
 	<key>NSLocationWhenInUseUsageDescription</key>
 	<string>This app needs access to location.</string>
 	<key>NSMicrophoneUsageDescription</key>
diff --git a/client/lib/main.dart b/client/lib/main.dart
index f171717a08..b74458497a 100644
--- a/client/lib/main.dart
+++ b/client/lib/main.dart
@@ -14,6 +14,7 @@ import 'package:flet_datatable2/flet_datatable2.dart' as flet_datatable2;
 import "package:flet_flashlight/flet_flashlight.dart" as flet_flashlight;
 import 'package:flet_geolocator/flet_geolocator.dart' as flet_geolocator;
 import 'package:flet_lottie/flet_lottie.dart' as flet_lottie;
+import 'package:flet_local_auth/flet_local_auth.dart' as flet_local_auth;
 import 'package:flet_map/flet_map.dart' as flet_map;
 import 'package:flet_permission_handler/flet_permission_handler.dart'
     as flet_permission_handler;
@@ -57,6 +58,7 @@ void main([List<String>? args]) async {
     flet_flashlight.Extension(),
     flet_geolocator.Extension(),
     flet_lottie.Extension(),
+    flet_local_auth.Extension(),
     flet_map.Extension(),
     flet_permission_handler.Extension(),
     flet_secure_storage.Extension(),
diff --git a/client/macos/Flutter/GeneratedPluginRegistrant.swift b/client/macos/Flutter/GeneratedPluginRegistrant.swift
index 634e2b35b4..96a547968d 100644
--- a/client/macos/Flutter/GeneratedPluginRegistrant.swift
+++ b/client/macos/Flutter/GeneratedPluginRegistrant.swift
@@ -12,6 +12,7 @@ import device_info_plus
 import file_picker
 import flutter_secure_storage_darwin
 import geolocator_apple
+import local_auth_darwin
 import media_kit_libs_macos_video
 import media_kit_video
 import package_info_plus
@@ -35,6 +36,7 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   FilePickerPlugin.register(with: registry.registrar(forPlugin: "FilePickerPlugin"))
   FlutterSecureStorageDarwinPlugin.register(with: registry.registrar(forPlugin: "FlutterSecureStorageDarwinPlugin"))
   GeolocatorPlugin.register(with: registry.registrar(forPlugin: "GeolocatorPlugin"))
+  LocalAuthPlugin.register(with: registry.registrar(forPlugin: "LocalAuthPlugin"))
   MediaKitLibsMacosVideoPlugin.register(with: registry.registrar(forPlugin: "MediaKitLibsMacosVideoPlugin"))
   MediaKitVideoPlugin.register(with: registry.registrar(forPlugin: "MediaKitVideoPlugin"))
   FPPPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FPPPackageInfoPlusPlugin"))
diff --git a/client/macos/Runner/Info.plist b/client/macos/Runner/Info.plist
index 6fd83ba455..6d029b1108 100644
--- a/client/macos/Runner/Info.plist
+++ b/client/macos/Runner/Info.plist
@@ -38,5 +38,9 @@
 		<!-- Needed by `flet-geolocator` -->
 		<key>NSLocationWhenInUseUsageDescription</key>
         <string>This app needs access to location.</string>
+
+		<!-- Needed by `flet-local-auth` -->
+		<key>NSFaceIDUsageDescription</key>
+		<string>This app uses biometrics to authenticate you.</string>
 	</dict>
 </plist>
\ No newline at end of file
diff --git a/client/pubspec.lock b/client/pubspec.lock
index ee5bab4d12..94b7703aec 100644
--- a/client/pubspec.lock
+++ b/client/pubspec.lock
@@ -437,6 +437,13 @@ packages:
       relative: true
     source: path
     version: "0.86.0"
+  flet_local_auth:
+    dependency: "direct main"
+    description:
+      path: "../sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth"
+      relative: true
+    source: path
+    version: "0.1.0"
   flet_lottie:
     dependency: "direct main"
     description:
@@ -897,6 +904,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.1"
+  local_auth:
+    dependency: transitive
+    description:
+      name: local_auth
+      sha256: ecf24edf2283c509ecd217e3595f6f71034b68888d28ad1dae6bfa0857b816ac
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
+  local_auth_android:
+    dependency: transitive
+    description:
+      name: local_auth_android
+      sha256: fdb936d59ab945c7af297defd67bd1ed87b11b6db1bc16d01e94677a8f1c38ec
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.9"
+  local_auth_darwin:
+    dependency: transitive
+    description:
+      name: local_auth_darwin
+      sha256: a8c3d4e17454111f7fd31ff72a31222359f6059f7fe956c2dcfe0f88f49826d4
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.3"
+  local_auth_platform_interface:
+    dependency: transitive
+    description:
+      name: local_auth_platform_interface
+      sha256: f98b8e388588583d3f781f6806e4f4c9f9e189d898d27f0c249b93a1973dd122
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  local_auth_windows:
+    dependency: transitive
+    description:
+      name: local_auth_windows
+      sha256: be12c5b8ba5e64896983123655c5f67d2484ecfcc95e367952ad6e3bff94cb16
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
   logging:
     dependency: transitive
     description:
diff --git a/client/pubspec.yaml b/client/pubspec.yaml
index 3e4adc8a13..08a9bde4dc 100644
--- a/client/pubspec.yaml
+++ b/client/pubspec.yaml
@@ -73,6 +73,9 @@ dependencies:
   flet_lottie:
     path: ../sdk/python/packages/flet-lottie/src/flutter/flet_lottie
 
+  flet_local_auth:
+    path: ../sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth
+
   flet_map:
     path: ../sdk/python/packages/flet-map/src/flutter/flet_map
 
diff --git a/client/windows/flutter/generated_plugin_registrant.cc b/client/windows/flutter/generated_plugin_registrant.cc
index 5042c5c7cf..cf0f7274d6 100644
--- a/client/windows/flutter/generated_plugin_registrant.cc
+++ b/client/windows/flutter/generated_plugin_registrant.cc
@@ -11,6 +11,7 @@
 #include <connectivity_plus/connectivity_plus_windows_plugin.h>
 #include <flutter_secure_storage_windows/flutter_secure_storage_windows_plugin.h>
 #include <geolocator_windows/geolocator_windows.h>
+#include <local_auth_windows/local_auth_plugin.h>
 #include <media_kit_libs_windows_video/media_kit_libs_windows_video_plugin_c_api.h>
 #include <media_kit_video/media_kit_video_plugin_c_api.h>
 #include <pasteboard/pasteboard_plugin.h>
@@ -34,6 +35,8 @@ void RegisterPlugins(flutter::PluginRegistry* registry) {
       registry->GetRegistrarForPlugin("FlutterSecureStorageWindowsPlugin"));
   GeolocatorWindowsRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("GeolocatorWindows"));
+  LocalAuthPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("LocalAuthPlugin"));
   MediaKitLibsWindowsVideoPluginCApiRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("MediaKitLibsWindowsVideoPluginCApi"));
   MediaKitVideoPluginCApiRegisterWithRegistrar(
diff --git a/client/windows/flutter/generated_plugins.cmake b/client/windows/flutter/generated_plugins.cmake
index 1aab211945..9d771b9380 100644
--- a/client/windows/flutter/generated_plugins.cmake
+++ b/client/windows/flutter/generated_plugins.cmake
@@ -8,6 +8,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
   connectivity_plus
   flutter_secure_storage_windows
   geolocator_windows
+  local_auth_windows
   media_kit_libs_windows_video
   media_kit_video
   pasteboard
diff --git a/sdk/python/examples/apps/flet_build_test/pyproject.toml b/sdk/python/examples/apps/flet_build_test/pyproject.toml
index 6bd918b24b..99e284a7fe 100644
--- a/sdk/python/examples/apps/flet_build_test/pyproject.toml
+++ b/sdk/python/examples/apps/flet_build_test/pyproject.toml
@@ -20,6 +20,7 @@ dependencies = [
     "flet-flashlight",
     "flet-geolocator",
     "flet-lottie",
+    "flet-local-auth",
     "flet-map",
     "flet-permission-handler",
     "flet-rive",
@@ -52,6 +53,7 @@ flet-datatable2 = { path = "../../../packages/flet-datatable2", editable = true
 flet-flashlight = { path = "../../../packages/flet-flashlight", editable = true }
 flet-geolocator = { path = "../../../packages/flet-geolocator", editable = true }
 flet-lottie = { path = "../../../packages/flet-lottie", editable = true }
+flet-local-auth = { path = "../../../packages/flet-local-auth", editable = true }
 flet-map = { path = "../../../packages/flet-map", editable = true }
 flet-permission-handler = { path = "../../../packages/flet-permission-handler", editable = true }
 flet-rive = { path = "../../../packages/flet-rive", editable = true }
@@ -73,6 +75,7 @@ flet-datatable2 = "../../../packages/flet-datatable2"
 flet-flashlight = "../../../packages/flet-flashlight"
 flet-geolocator = "../../../packages/flet-geolocator"
 flet-lottie = "../../../packages/flet-lottie"
+flet-local-auth = "../../../packages/flet-local-auth"
 flet-map = "../../../packages/flet-map"
 flet-permission-handler = "../../../packages/flet-permission-handler"
 flet-rive = "../../../packages/flet-rive"
diff --git a/sdk/python/examples/extensions/local_auth/local_auth/main.py b/sdk/python/examples/extensions/local_auth/local_auth/main.py
new file mode 100644
index 0000000000..60b453741f
--- /dev/null
+++ b/sdk/python/examples/extensions/local_auth/local_auth/main.py
@@ -0,0 +1,52 @@
+import flet as ft
+import flet_local_auth as auth
+
+
+def main(page: ft.Page):
+    status = ft.Text(theme_style=ft.TextThemeStyle.TITLE_MEDIUM)
+    local_auth = auth.LocalAuthentication()
+
+    async def refresh_capabilities(_):
+        supported = await local_auth.is_device_supported()
+        can_check = await local_auth.can_check_biometrics()
+        biometrics = await local_auth.get_available_biometrics()
+        status.value = (
+            f"Device supported: {supported}\n"
+            f"Biometric hardware: {can_check}\n"
+            f"Enrolled biometrics: {', '.join(b.value for b in biometrics) or 'none'}"
+        )
+
+    async def authenticate(_):
+        try:
+            ok = await local_auth.authenticate(
+                "Authenticate to continue",
+                android_messages=auth.AndroidAuthMessages(
+                    sign_in_title="Unlock",
+                    cancel_button="Not now",
+                ),
+            )
+            status.value = f"Authenticated: {ok}"
+        except auth.LocalAuthException as e:
+            status.value = f"Authentication failed: {e.code.value}"
+
+    page.add(
+        ft.SafeArea(
+            content=ft.Column(
+                spacing=16,
+                controls=[
+                    ft.Container(
+                        bgcolor=ft.Colors.SURFACE_CONTAINER_HIGHEST,
+                        border_radius=12,
+                        padding=16,
+                        content=status,
+                    ),
+                    ft.Button("Check capabilities", on_click=refresh_capabilities),
+                    ft.Button("Authenticate", on_click=authenticate),
+                ],
+            ),
+        )
+    )
+
+
+if __name__ == "__main__":
+    ft.run(main)
diff --git a/sdk/python/examples/extensions/local_auth/local_auth/pyproject.toml b/sdk/python/examples/extensions/local_auth/local_auth/pyproject.toml
new file mode 100644
index 0000000000..2808cfa8d9
--- /dev/null
+++ b/sdk/python/examples/extensions/local_auth/local_auth/pyproject.toml
@@ -0,0 +1,27 @@
+[project]
+name = "local_auth"
+version = "1.0.0"
+description = "Prompts for on-device biometric or credential authentication."
+requires-python = ">=3.10"
+keywords = ["local auth", "biometric", "example", "services", "async"]
+authors = [{ name = "Flet team", email = "hello@flet.dev" }]
+dependencies = ["flet", "flet-local-auth"]
+
+[dependency-groups]
+dev = ["flet-cli", "flet-desktop", "flet-web"]
+
+[tool.flet.gallery]
+categories = ["Utility/LocalAuthentication"]
+
+[tool.flet.metadata]
+title = "Local authentication"
+controls = ["SafeArea", "Column", "Page", "LocalAuthentication", "Button", "Text"]
+layout_pattern = "inline-actions"
+complexity = "basic"
+features = ["biometric authentication", "device capability checks"]
+
+[tool.flet]
+org = "dev.flet"
+company = "Flet"
+copyright = "Copyright (C) 2023-2026 by Flet"
+platforms = ["ios", "android", "windows", "macos"]
diff --git a/sdk/python/packages/flet-cli/src/flet_cli/commands/build_base.py b/sdk/python/packages/flet-cli/src/flet_cli/commands/build_base.py
index f5c560fc70..d358ddc642 100644
--- a/sdk/python/packages/flet-cli/src/flet_cli/commands/build_base.py
+++ b/sdk/python/packages/flet-cli/src/flet_cli/commands/build_base.py
@@ -234,6 +234,17 @@ def __init__(self, parser: argparse.ArgumentParser) -> None:
                 },
                 "android_features": {},
             },
+            "biometric": {
+                "ios_info_plist": {
+                    "NSFaceIDUsageDescription": "This app uses biometrics to authenticate you."  # noqa: E501
+                },
+                "macos_info_plist": {
+                    "NSFaceIDUsageDescription": "This app uses biometrics to authenticate you."  # noqa: E501
+                },
+                "macos_entitlements": {},
+                "android_permissions": {},
+                "android_features": {},
+            },
         }
 
         # create and display build-platform-matrix table
diff --git a/sdk/python/packages/flet-local-auth/LICENSE b/sdk/python/packages/flet-local-auth/LICENSE
new file mode 100644
index 0000000000..f6b0638846
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/LICENSE
@@ -0,0 +1,3 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
diff --git a/sdk/python/packages/flet-local-auth/README.md b/sdk/python/packages/flet-local-auth/README.md
new file mode 100644
index 0000000000..d8e35aa131
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/README.md
@@ -0,0 +1,3 @@
+# Flet Local Authentication
+
+`LocalAuthentication` service for Flet apps. Authenticate users with biometrics, PIN, passcode, or pattern via the [`local_auth`](https://pub.dev/packages/local_auth) Flutter plugin.
diff --git a/sdk/python/packages/flet-local-auth/pyproject.toml b/sdk/python/packages/flet-local-auth/pyproject.toml
new file mode 100644
index 0000000000..229354cd08
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/pyproject.toml
@@ -0,0 +1,26 @@
+[project]
+name = "flet-local-auth"
+version = "0.1.0"
+description = "Local authentication service for Flet"
+authors = [{name = "Appveyor Systems Inc.", email = "hello@flet.dev"}]
+readme = "README.md"
+requires-python = ">=3.10"
+dependencies = [
+    "flet",
+]
+
+[project.urls]
+Homepage = "https://flet.dev"
+Documentation = "https://flet.dev/docs/services/localauthentication"
+Repository = "https://github.com/flet-dev/flet/tree/main/sdk/python/packages/flet-local-auth"
+Issues = "https://github.com/flet-dev/flet/issues"
+
+[tool.setuptools.package-data]
+"flutter.flet_local_auth" = [
+    "pubspec.yaml",
+    "lib/**",
+]
+
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
diff --git a/sdk/python/packages/flet-local-auth/src/flet_local_auth/__init__.py b/sdk/python/packages/flet-local-auth/src/flet_local_auth/__init__.py
new file mode 100644
index 0000000000..e4f21a88c9
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flet_local_auth/__init__.py
@@ -0,0 +1,19 @@
+from flet_local_auth.local_auth import LocalAuthentication
+from flet_local_auth.types import (
+    AndroidAuthMessages,
+    BiometricType,
+    IOSAuthMessages,
+    LocalAuthErrorCode,
+    LocalAuthException,
+    WindowsAuthMessages,
+)
+
+__all__ = [
+    "AndroidAuthMessages",
+    "BiometricType",
+    "IOSAuthMessages",
+    "LocalAuthErrorCode",
+    "LocalAuthentication",
+    "LocalAuthException",
+    "WindowsAuthMessages",
+]
diff --git a/sdk/python/packages/flet-local-auth/src/flet_local_auth/local_auth.py b/sdk/python/packages/flet-local-auth/src/flet_local_auth/local_auth.py
new file mode 100644
index 0000000000..8e6659d6f7
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flet_local_auth/local_auth.py
@@ -0,0 +1,134 @@
+from typing import Optional
+
+import flet as ft
+from flet.controls.base_control import control
+from flet.controls.services.service import Service
+from flet_local_auth.types import (
+    AndroidAuthMessages,
+    BiometricType,
+    IOSAuthMessages,
+    LocalAuthErrorCode,
+    LocalAuthException,
+    WindowsAuthMessages,
+)
+
+__all__ = [
+    "AndroidAuthMessages",
+    "BiometricType",
+    "IOSAuthMessages",
+    "LocalAuthErrorCode",
+    "LocalAuthentication",
+    "LocalAuthException",
+    "WindowsAuthMessages",
+]
+
+
+@control("LocalAuthentication")
+class LocalAuthentication(Service):
+    """
+    Authenticates the user with on-device biometrics or device credentials.
+
+    Danger: Platform support
+        Supported on Android, iOS, macOS, and Windows. Not supported on Linux or Web.
+
+    Raises:
+        FletUnsupportedPlatformException: If the platform is not supported.
+        LocalAuthException: If authentication fails.
+    """
+
+    def before_update(self):
+        super().before_update()
+
+        if self.page.web or self.page.platform == ft.PagePlatform.LINUX:
+            raise ft.FletUnsupportedPlatformException(
+                "LocalAuthentication is not supported on Linux or Web platforms."
+            )
+
+    async def is_device_supported(self) -> bool:
+        """
+        Returns whether the device can authenticate with biometrics or credentials.
+        """
+        return await self._invoke_method("is_device_supported")
+
+    async def can_check_biometrics(self) -> bool:
+        """
+        Returns whether the device has biometric hardware available.
+        """
+        return await self._invoke_method("can_check_biometrics")
+
+    async def get_available_biometrics(self) -> list[BiometricType]:
+        """
+        Returns the biometrics currently enrolled on the device.
+        """
+        result = await self._invoke_method("get_available_biometrics")
+        return [BiometricType(value) for value in result or []]
+
+    async def authenticate(
+        self,
+        reason: str,
+        *,
+        biometric_only: bool = False,
+        sensitive_transaction: bool = True,
+        persist_across_backgrounding: bool = False,
+        android_messages: Optional[AndroidAuthMessages] = None,
+        ios_messages: Optional[IOSAuthMessages] = None,
+        windows_messages: Optional[WindowsAuthMessages] = None,
+    ) -> bool:
+        """
+        Prompts the user to authenticate locally.
+
+        Args:
+            reason: The message shown in the system authentication dialog.
+            biometric_only: Whether to allow only biometric authentication.
+            sensitive_transaction: Whether to treat the transaction as sensitive.
+            persist_across_backgrounding: Whether to retry after the app is
+                foregrounded again if authentication was interrupted.
+            android_messages: Optional Android dialog customization.
+            ios_messages: Optional iOS dialog customization.
+            windows_messages: Optional Windows dialog customization.
+
+        Returns:
+            `True` when authentication succeeds.
+
+        Raises:
+            LocalAuthException: If authentication fails or is canceled.
+        """
+        result = await self._invoke_method(
+            method_name="authenticate",
+            arguments={
+                "reason": reason,
+                "biometric_only": biometric_only,
+                "sensitive_transaction": sensitive_transaction,
+                "persist_across_backgrounding": persist_across_backgrounding,
+                "android_messages": android_messages,
+                "ios_messages": ios_messages,
+                "windows_messages": windows_messages,
+            },
+        )
+        self._raise_for_error(result)
+        return bool(result)
+
+    async def stop_authentication(self) -> bool:
+        """
+        Cancels any in-progress authentication prompt.
+
+        Returns:
+            `True` if authentication was canceled successfully.
+        """
+        return await self._invoke_method("stop_authentication")
+
+    @staticmethod
+    def _raise_for_error(result: object) -> None:
+        if not isinstance(result, dict) or "error_code" not in result:
+            return
+
+        code_value = result.get("error_code")
+        try:
+            code = LocalAuthErrorCode(code_value)
+        except ValueError:
+            code = LocalAuthErrorCode.UNKNOWN_ERROR
+
+        raise LocalAuthException(
+            code=code,
+            description=result.get("error_description"),
+        )
diff --git a/sdk/python/packages/flet-local-auth/src/flet_local_auth/types.py b/sdk/python/packages/flet-local-auth/src/flet_local_auth/types.py
new file mode 100644
index 0000000000..5af2b17eb0
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flet_local_auth/types.py
@@ -0,0 +1,85 @@
+from enum import Enum
+from typing import Optional
+
+import flet as ft
+
+
+class BiometricType(Enum):
+    """
+    Biometric types reported by the device.
+    """
+
+    FACE = "face"
+    FINGERPRINT = "fingerprint"
+    IRIS = "iris"
+    WEAK = "weak"
+    STRONG = "strong"
+
+
+class LocalAuthErrorCode(Enum):
+    """
+    Error codes reported by local authentication failures.
+    """
+
+    AUTH_IN_PROGRESS = "authInProgress"
+    UI_UNAVAILABLE = "uiUnavailable"
+    USER_CANCELED = "userCanceled"
+    TIMEOUT = "timeout"
+    SYSTEM_CANCELED = "systemCanceled"
+    NO_CREDENTIALS_SET = "noCredentialsSet"
+    NO_BIOMETRICS_ENROLLED = "noBiometricsEnrolled"
+    NO_BIOMETRIC_HARDWARE = "noBiometricHardware"
+    BIOMETRIC_HARDWARE_TEMPORARILY_UNAVAILABLE = (
+        "biometricHardwareTemporarilyUnavailable"
+    )
+    TEMPORARY_LOCKOUT = "temporaryLockout"
+    BIOMETRIC_LOCKOUT = "biometricLockout"
+    USER_REQUESTED_FALLBACK = "userRequestedFallback"
+    DEVICE_ERROR = "deviceError"
+    UNKNOWN_ERROR = "unknownError"
+
+
+@ft.value
+class AndroidAuthMessages:
+    """
+    Customizable Android authentication dialog strings.
+    """
+
+    sign_in_hint: Optional[str] = None
+    cancel_button: Optional[str] = None
+    sign_in_title: Optional[str] = None
+
+
+@ft.value
+class IOSAuthMessages:
+    """
+    Customizable iOS authentication dialog strings.
+    """
+
+    cancel_button: Optional[str] = None
+    localized_fallback_title: Optional[str] = None
+
+
+@ft.value
+class WindowsAuthMessages:
+    """
+    Placeholder for Windows authentication messages.
+
+    `local_auth` 3.x does not currently expose customizable Windows dialog strings.
+    """
+
+
+class LocalAuthException(ft.FletException):
+    """
+    Raised when local authentication fails.
+    """
+
+    def __init__(
+        self,
+        code: LocalAuthErrorCode,
+        description: Optional[str] = None,
+    ):
+        self.code = code
+        self.description = description
+        message = description or code.value
+        super().__init__(message)
diff --git a/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/.gitignore b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/.gitignore
new file mode 100644
index 0000000000..694a0e2d4a
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/.gitignore
@@ -0,0 +1,25 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# Flutter/Dart/Pub related
+/pubspec.lock
+**/doc/api/
+.dart_tool/
+build/
+.flutter-plugins
+.flutter-plugins-dependencies
diff --git a/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/flet_local_auth.dart b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/flet_local_auth.dart
new file mode 100644
index 0000000000..620bcf0b59
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/flet_local_auth.dart
@@ -0,0 +1,3 @@
+library flet_local_auth;
+
+export "src/extension.dart" show Extension;
diff --git a/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/src/extension.dart b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/src/extension.dart
new file mode 100644
index 0000000000..d70f4971a9
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/src/extension.dart
@@ -0,0 +1,15 @@
+import 'package:flet/flet.dart';
+
+import 'local_auth.dart';
+
+class Extension extends FletExtension {
+  @override
+  FletService? createService(Control control) {
+    switch (control.type) {
+      case "LocalAuthentication":
+        return LocalAuthenticationService(control: control);
+      default:
+        return null;
+    }
+  }
+}
diff --git a/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/src/local_auth.dart b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/src/local_auth.dart
new file mode 100644
index 0000000000..7bebc76ff5
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/src/local_auth.dart
@@ -0,0 +1,59 @@
+import 'package:flet/flet.dart';
+import 'package:flutter/material.dart';
+import 'package:local_auth/local_auth.dart';
+
+import 'utils/local_auth.dart';
+
+class LocalAuthenticationService extends FletService {
+  LocalAuthenticationService({required super.control});
+
+  final LocalAuthentication _auth = LocalAuthentication();
+
+  @override
+  void init() {
+    super.init();
+    debugPrint(
+      "LocalAuthenticationService(${control.id}).init: ${control.properties}",
+    );
+    control.addInvokeMethodListener(_invokeMethod);
+  }
+
+  Future<dynamic> _invokeMethod(String name, dynamic args) async {
+    debugPrint("LocalAuthentication.$name($args)");
+    switch (name) {
+      case "is_device_supported":
+        return await _auth.isDeviceSupported();
+      case "can_check_biometrics":
+        return await _auth.canCheckBiometrics;
+      case "get_available_biometrics":
+        return (await _auth.getAvailableBiometrics())
+            .map(parseBiometricTypeName)
+            .toList();
+      case "authenticate":
+        try {
+          return await _auth.authenticate(
+            localizedReason: args["reason"]!,
+            authMessages: parseAuthMessages(args),
+            biometricOnly: args["biometric_only"] as bool? ?? false,
+            sensitiveTransaction:
+                args["sensitive_transaction"] as bool? ?? true,
+            persistAcrossBackgrounding:
+                args["persist_across_backgrounding"] as bool? ?? false,
+          );
+        } on LocalAuthException catch (e) {
+          return localAuthErrorMap(e);
+        }
+      case "stop_authentication":
+        return await _auth.stopAuthentication();
+      default:
+        throw Exception("Unknown LocalAuthentication method: $name");
+    }
+  }
+
+  @override
+  void dispose() {
+    debugPrint("LocalAuthenticationService(${control.id}).dispose()");
+    control.removeInvokeMethodListener(_invokeMethod);
+    super.dispose();
+  }
+}
diff --git a/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/src/utils/local_auth.dart b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/src/utils/local_auth.dart
new file mode 100644
index 0000000000..ae0539d139
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/lib/src/utils/local_auth.dart
@@ -0,0 +1,81 @@
+import 'package:local_auth/local_auth.dart';
+import 'package:local_auth_android/local_auth_android.dart';
+import 'package:local_auth_darwin/local_auth_darwin.dart';
+import 'package:local_auth_windows/local_auth_windows.dart';
+
+AndroidAuthMessages? parseAndroidAuthMessages(Map? value) {
+  if (value == null) {
+    return null;
+  }
+  return AndroidAuthMessages(
+    signInHint: value["sign_in_hint"],
+    cancelButton: value["cancel_button"],
+    signInTitle: value["sign_in_title"],
+  );
+}
+
+IOSAuthMessages? parseIosAuthMessages(Map? value) {
+  if (value == null) {
+    return null;
+  }
+  return IOSAuthMessages(
+    cancelButton: value["cancel_button"],
+    localizedFallbackTitle: value["localized_fallback_title"],
+  );
+}
+
+WindowsAuthMessages? parseWindowsAuthMessages(Map? value) {
+  if (value == null) {
+    return null;
+  }
+  return const WindowsAuthMessages();
+}
+
+List<AuthMessages> parseAuthMessages(
+  Map? args, {
+  List<AuthMessages> defaults = const [
+    IOSAuthMessages(),
+    AndroidAuthMessages(),
+    WindowsAuthMessages(),
+  ],
+}) {
+  final android = parseAndroidAuthMessages(args?["android_messages"]);
+  final ios = parseIosAuthMessages(args?["ios_messages"]);
+  final windows = parseWindowsAuthMessages(args?["windows_messages"]);
+
+  if (android == null && ios == null && windows == null) {
+    return defaults;
+  }
+
+  final messages = <AuthMessages>[];
+  for (final message in defaults) {
+    if (message is AndroidAuthMessages) {
+      messages.add(android ?? message);
+    } else if (message is IOSAuthMessages) {
+      messages.add(ios ?? message);
+    } else if (message is WindowsAuthMessages) {
+      messages.add(windows ?? message);
+    } else {
+      messages.add(message);
+    }
+  }
+  return messages;
+}
+
+String? parseBiometricTypeName(BiometricType type) {
+  return type.name;
+}
+
+LocalAuthExceptionCode parseLocalAuthExceptionCode(String? value) {
+  return LocalAuthExceptionCode.values.firstWhere(
+    (code) => code.name == value,
+    orElse: () => LocalAuthExceptionCode.unknownError,
+  );
+}
+
+Map<String, Object?> localAuthErrorMap(LocalAuthException exception) {
+  return {
+    "error_code": exception.code.name,
+    "error_description": exception.description,
+  };
+}
diff --git a/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/pubspec.yaml b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/pubspec.yaml
new file mode 100644
index 0000000000..08989f2175
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/pubspec.yaml
@@ -0,0 +1,25 @@
+name: flet_local_auth
+description: Flet Local Authentication service
+version: 0.1.0
+publish_to: none
+
+environment:
+  sdk: '>=3.3.0 <4.0.0'
+  flutter: ">=1.17.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+  local_auth: 3.0.2
+  local_auth_android: 2.0.9
+  local_auth_darwin: 2.0.3
+  local_auth_windows: 2.0.1
+
+  flet:
+    path: ../../../../../../../packages/flet
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^3.0.0
diff --git a/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/test/enum_mapping_test.dart b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/test/enum_mapping_test.dart
new file mode 100644
index 0000000000..bdbed139d8
--- /dev/null
+++ b/sdk/python/packages/flet-local-auth/src/flutter/flet_local_auth/test/enum_mapping_test.dart
@@ -0,0 +1,25 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:local_auth/local_auth.dart';
+
+import 'package:flet_local_auth/src/utils/local_auth.dart';
+
+void main() {
+  test('maps every BiometricType name', () {
+    for (final type in BiometricType.values) {
+      expect(parseBiometricTypeName(type), type.name);
+    }
+  });
+
+  test('maps known LocalAuthExceptionCode values', () {
+    for (final code in LocalAuthExceptionCode.values) {
+      expect(parseLocalAuthExceptionCode(code.name), code);
+    }
+  });
+
+  test('unknown LocalAuthExceptionCode falls back to unknownError', () {
+    expect(
+      parseLocalAuthExceptionCode('futureUpstreamCode'),
+      LocalAuthExceptionCode.unknownError,
+    );
+  });
+}
diff --git a/sdk/python/packages/flet/integration_tests/extensions/local_auth/test_local_auth.py b/sdk/python/packages/flet/integration_tests/extensions/local_auth/test_local_auth.py
new file mode 100644
index 0000000000..28019633aa
--- /dev/null
+++ b/sdk/python/packages/flet/integration_tests/extensions/local_auth/test_local_auth.py
@@ -0,0 +1,39 @@
+import pytest
+import pytest_asyncio
+
+import flet as ft
+import flet.testing as ftt
+import flet_local_auth as auth
+from flet.controls.exceptions import FletUnsupportedPlatformException
+
+
+@pytest_asyncio.fixture(scope="function", autouse=True)
+def flet_app(flet_app_function):
+    return flet_app_function
+
+
+@pytest.mark.asyncio(loop_scope="function")
+async def test_unsupported_platform_raises(flet_app: ftt.FletTestApp):
+    if not (flet_app.page.web or flet_app.page.platform == ft.PagePlatform.LINUX):
+        pytest.skip("Linux or web only")
+
+    with pytest.raises(FletUnsupportedPlatformException):
+        auth.LocalAuthentication()
+
+
+@pytest.mark.asyncio(loop_scope="function")
+async def test_device_capabilities(flet_app: ftt.FletTestApp):
+    if flet_app.page.web or flet_app.page.platform == ft.PagePlatform.LINUX:
+        pytest.skip("Native mobile/desktop only")
+
+    local_auth = auth.LocalAuthentication()
+
+    supported = await local_auth.is_device_supported()
+    assert isinstance(supported, bool)
+
+    can_check = await local_auth.can_check_biometrics()
+    assert isinstance(can_check, bool)
+
+    biometrics = await local_auth.get_available_biometrics()
+    assert isinstance(biometrics, list)
+    assert all(isinstance(item, auth.BiometricType) for item in biometrics)
diff --git a/sdk/python/packages/flet/pyproject.toml b/sdk/python/packages/flet/pyproject.toml
index 9fb0df02f5..0b733c6ac2 100644
--- a/sdk/python/packages/flet/pyproject.toml
+++ b/sdk/python/packages/flet/pyproject.toml
@@ -62,6 +62,7 @@ extensions = [
     "flet-flashlight",
     "flet-geolocator",
     "flet-lottie",
+    "flet-local-auth",
     "flet-map",
     "flet-permission-handler",
     "flet-rive",
diff --git a/sdk/python/pyproject.toml b/sdk/python/pyproject.toml
index 100f98b5c0..1b6ffe404d 100644
--- a/sdk/python/pyproject.toml
+++ b/sdk/python/pyproject.toml
@@ -21,6 +21,7 @@ dependencies = [
     "flet-flashlight",
     "flet-geolocator",
     "flet-lottie",
+    "flet-local-auth",
     "flet-map",
     "flet-mcp",
     "flet-permission-handler",
@@ -47,6 +48,7 @@ flet-datatable2 = { workspace = true }
 flet-flashlight = { workspace = true }
 flet-geolocator = { workspace = true }
 flet-lottie = { workspace = true }
+flet-local-auth = { workspace = true }
 flet-map = { workspace = true }
 flet-mcp = { workspace = true }
 flet-permission-handler = { workspace = true }
@@ -121,6 +123,7 @@ isort = { known-first-party = [
     "flet_flashlight",
     "flet_geolocator",
     "flet_lottie",
+    "flet_local_auth",
     "flet_map",
     "flet_mcp",
     "flet_permission_handler",
diff --git a/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/kotlin/{{ cookiecutter.kotlin_dir }}/MainActivity.kt b/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/kotlin/{{ cookiecutter.kotlin_dir }}/MainActivity.kt
index 8ab8e074ba..e1bda9fd51 100644
--- a/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/kotlin/{{ cookiecutter.kotlin_dir }}/MainActivity.kt	
+++ b/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/kotlin/{{ cookiecutter.kotlin_dir }}/MainActivity.kt	
@@ -1,5 +1,5 @@
 package {{ cookiecutter.org_name_2 }}.{{ cookiecutter.package_name }}
 
-import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.android.FlutterFragmentActivity
 
-class MainActivity : FlutterActivity()
+class MainActivity : FlutterFragmentActivity()
diff --git a/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/res/values-night/styles.xml b/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/res/values-night/styles.xml
index 06952be745..eefe493f95 100644
--- a/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/res/values-night/styles.xml
+++ b/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/res/values-night/styles.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
-    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+    <style name="LaunchTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
         <!-- Show a splash screen on the activity. Automatically removed when
              the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
diff --git a/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/res/values/styles.xml b/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/res/values/styles.xml
index cb1ef88056..bf737e09b1 100644
--- a/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/res/values/styles.xml
+++ b/sdk/python/templates/build/{{cookiecutter.out_dir}}/android/app/src/main/res/values/styles.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
-    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+    <style name="LaunchTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
         <!-- Show a splash screen on the activity. Automatically removed when
              the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
diff --git a/tools/crocodocs/pyproject.toml b/tools/crocodocs/pyproject.toml
index 34bfeba0e4..14e89f2b69 100644
--- a/tools/crocodocs/pyproject.toml
+++ b/tools/crocodocs/pyproject.toml
@@ -70,6 +70,7 @@ flet_desktop = "../../sdk/python/packages/flet-desktop/src"
 flet_flashlight = "../../sdk/python/packages/flet-flashlight/src"
 flet_geolocator = "../../sdk/python/packages/flet-geolocator/src"
 flet_lottie = "../../sdk/python/packages/flet-lottie/src"
+flet_local_auth = "../../sdk/python/packages/flet-local-auth/src"
 flet_map = "../../sdk/python/packages/flet-map/src"
 flet_permission_handler = "../../sdk/python/packages/flet-permission-handler/src"
 flet_rive = "../../sdk/python/packages/flet-rive/src"
diff --git a/website/docs/extend/built-in-extensions.md b/website/docs/extend/built-in-extensions.md
index a7b1bb312a..251c9f6618 100644
--- a/website/docs/extend/built-in-extensions.md
+++ b/website/docs/extend/built-in-extensions.md
@@ -13,6 +13,7 @@ Flet controls based on 3rd-party Flutter packages that used to be a part of Flet
 * [flet-flashlight](https://pypi.org/project/flet-flashlight/)
 * [flet-geolocator](https://pypi.org/project/flet-geolocator/)
 * [flet-lottie](https://pypi.org/project/flet-lottie/)
+* [flet-local-auth](https://pypi.org/project/flet-local-auth/)
 * [flet-map](https://pypi.org/project/flet-map/)
 * [flet-permission-handler](https://pypi.org/project/flet-permission-handler/)
 * [flet-rive](https://pypi.org/project/flet-rive/)
diff --git a/website/docs/publish/macos.md b/website/docs/publish/macos.md
index f50483b8e0..6163525dd0 100644
--- a/website/docs/publish/macos.md
+++ b/website/docs/publish/macos.md
@@ -57,6 +57,14 @@ macOS permissions are declared through [`Info.plist`](#infoplist) privacy usage
 app [entitlements](#entitlements). You can also use the [cross-platform permission bundles](index.md#predefined-cross-platform-permission-bundles)
 to inject common entries, then override or extend them with platform-specific values.
 
+:::note Touch ID and Face ID
+`LocalAuthentication` (via the [`flet-local-auth`](../services/localauthentication/index.md) extension) uses Apple's `LocalAuthentication` framework. No sandbox entitlement is required — `LAContext.evaluatePolicy` works inside a sandboxed app with the stock Flet entitlements. The `NSFaceIDUsageDescription` key is required on iOS and recommended on macOS; use the [`biometric` permission bundle](index.md#predefined-cross-platform-permission-bundles) or `[tool.flet.macos.info]`.
+
+Touch ID prompts require a **signed** app. Ad-hoc signing (the Flet build template's default `CODE_SIGN_IDENTITY = "-"`) is sufficient for local development.
+
+If you bind secrets to biometrics through [`SecureStorage`](../services/securestorage/index.md) keychain access controls instead of a simple authentication prompt, you may need `keychain-access-groups` entitlements when sharing items across targets.
+:::
+
 ### Info.plist
 
 Add or override `Info.plist` entries for macOS builds.
diff --git a/website/docs/services/localauthentication/index.md b/website/docs/services/localauthentication/index.md
new file mode 100644
index 0000000000..6ff06ad8c7
--- /dev/null
+++ b/website/docs/services/localauthentication/index.md
@@ -0,0 +1,64 @@
+---
+class_name: "flet_local_auth.LocalAuthentication"
+examples: "extensions/local_auth"
+title: "LocalAuthentication"
+---
+
+import TabItem from '@theme/TabItem';
+import Tabs from '@theme/Tabs';
+import {ClassAll, CodeExample} from '@site/src/components/crocodocs';
+
+# Local Authentication
+
+Authenticate users on-device with biometrics, PIN, passcode, or pattern using Flutter's [`local_auth`](https://pub.dev/packages/local_auth) package.
+
+For storing secrets protected by biometrics, see [`SecureStorage`](../securestorage/index.md).
+
+## Platform Support
+
+| Platform | Windows | macOS | Linux | iOS | Android | Web |
+|----------|---------|-------|-------|-----|---------|-----|
+| Supported|    ✅    |   ✅   |   ❌   |  ✅  |    ✅    |  ❌  |
+
+## Setup
+
+### iOS and macOS
+
+Add a Face ID usage description using the [`biometric` permission bundle](../../publish/index.md#predefined-cross-platform-permission-bundles) or `[tool.flet.ios.info]` / `[tool.flet.macos.info]`:
+
+```toml
+[tool.flet]
+permissions = ["biometric"]
+```
+
+### Android
+
+`USE_BIOMETRIC` is declared by the `local_auth` plugin and merged automatically. Flet apps use `FlutterFragmentActivity` and an AppCompat `LaunchTheme` by default.
+
+## Usage
+
+Add `flet-local-auth` to your project dependencies:
+
+<Tabs groupId="uv--pip">
+<TabItem value="uv" label="uv">
+```bash
+uv add flet-local-auth
+```
+
+</TabItem>
+<TabItem value="pip" label="pip">
+```bash
+pip install flet-local-auth  # (1)!
+```
+
+1. After this, you will have to manually add this package to your `requirements.txt` or `pyproject.toml`.
+</TabItem>
+</Tabs>
+
+## Example
+
+<CodeExample path={frontMatter.examples + '/local_auth/main.py'} language="python" />
+
+## Description
+
+<ClassAll name={frontMatter.class_name} />
diff --git a/website/docs/services/localauthentication/types/androidauthmessages.md b/website/docs/services/localauthentication/types/androidauthmessages.md
new file mode 100644
index 0000000000..d91e994493
--- /dev/null
+++ b/website/docs/services/localauthentication/types/androidauthmessages.md
@@ -0,0 +1,7 @@
+---
+title: "AndroidAuthMessages"
+---
+
+import {ClassAll} from '@site/src/components/crocodocs';
+
+<ClassAll name="flet_local_auth.AndroidAuthMessages" />
diff --git a/website/docs/services/localauthentication/types/biometrictype.md b/website/docs/services/localauthentication/types/biometrictype.md
new file mode 100644
index 0000000000..6c10adb9bb
--- /dev/null
+++ b/website/docs/services/localauthentication/types/biometrictype.md
@@ -0,0 +1,7 @@
+---
+title: "BiometricType"
+---
+
+import {ClassAll} from '@site/src/components/crocodocs';
+
+<ClassAll name="flet_local_auth.BiometricType" />
diff --git a/website/docs/services/localauthentication/types/iosauthmessages.md b/website/docs/services/localauthentication/types/iosauthmessages.md
new file mode 100644
index 0000000000..6179c601d3
--- /dev/null
+++ b/website/docs/services/localauthentication/types/iosauthmessages.md
@@ -0,0 +1,7 @@
+---
+title: "IOSAuthMessages"
+---
+
+import {ClassAll} from '@site/src/components/crocodocs';
+
+<ClassAll name="flet_local_auth.IOSAuthMessages" />
diff --git a/website/docs/services/localauthentication/types/localautherrorcode.md b/website/docs/services/localauthentication/types/localautherrorcode.md
new file mode 100644
index 0000000000..af4e785fd6
--- /dev/null
+++ b/website/docs/services/localauthentication/types/localautherrorcode.md
@@ -0,0 +1,7 @@
+---
+title: "LocalAuthErrorCode"
+---
+
+import {ClassAll} from '@site/src/components/crocodocs';
+
+<ClassAll name="flet_local_auth.LocalAuthErrorCode" />
diff --git a/website/docs/services/localauthentication/types/localauthexception.md b/website/docs/services/localauthentication/types/localauthexception.md
new file mode 100644
index 0000000000..9e9ad18435
--- /dev/null
+++ b/website/docs/services/localauthentication/types/localauthexception.md
@@ -0,0 +1,7 @@
+---
+title: "LocalAuthException"
+---
+
+import {ClassAll} from '@site/src/components/crocodocs';
+
+<ClassAll name="flet_local_auth.LocalAuthException" />
diff --git a/website/docs/services/localauthentication/types/windowsauthmessages.md b/website/docs/services/localauthentication/types/windowsauthmessages.md
new file mode 100644
index 0000000000..44e135b597
--- /dev/null
+++ b/website/docs/services/localauthentication/types/windowsauthmessages.md
@@ -0,0 +1,7 @@
+---
+title: "WindowsAuthMessages"
+---
+
+import {ClassAll} from '@site/src/components/crocodocs';
+
+<ClassAll name="flet_local_auth.WindowsAuthMessages" />
diff --git a/website/sidebars.yml b/website/sidebars.yml
index 206c97b79d..28675da553 100644
--- a/website/sidebars.yml
+++ b/website/sidebars.yml
@@ -357,6 +357,7 @@ docs:
       Geolocator: services/geolocator/index.md
       Gyroscope: services/gyroscope.md
       HapticFeedback: services/hapticfeedback.md
+      LocalAuthentication: services/localauthentication/index.md
       Magnetometer: services/magnetometer.md
       PermissionHandler: services/permissionhandler/index.md
       ScreenBrightness: services/screenbrightness.md
@@ -532,6 +533,13 @@ docs:
       - types/locale.md
       - types/localeconfiguration.md
       - types/locationinfo.md
+      - LocalAuthentication:
+        - services/localauthentication/types/androidauthmessages.md
+        - services/localauthentication/types/biometrictype.md
+        - services/localauthentication/types/iosauthmessages.md
+        - services/localauthentication/types/localautherrorcode.md
+        - services/localauthentication/types/localauthexception.md
+        - services/localauthentication/types/windowsauthmessages.md
       - Map:
         - controls/map/types/attributionalignment.md
         - controls/map/types/camera.md
@@ -872,6 +880,7 @@ docs:
         FletPageDisconnectedException: types/fletpagedisconnectedexception.md
         FletUnimplementedPlatformException: types/fletunimplementedplatformexception.md
         FletUnsupportedPlatformException: types/fletunsupportedplatformexception.md
+        LocalAuthException: services/localauthentication/types/localauthexception.md
       FastAPI:
       - fastapi/app.md
       - fastapi/app_manager.md