diff --git a/.github/workflows/ios_build.yml b/.github/workflows/ios_build.yml
new file mode 100644
index 0000000..e5b3761
--- /dev/null
+++ b/.github/workflows/ios_build.yml
@@ -0,0 +1,43 @@
+name: iOS Build & TestFlight
+
+on:
+  push:
+    tags:
+      - 'v*' # 例: git tag v1.0.0 をプッシュした時に実行
+
+jobs:
+  build:
+    name: Build & Deploy to TestFlight
+    runs-on: macos-latest
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: '3.29.x'
+          channel: 'stable'
+          
+      - name: Install dependencies
+        run: flutter pub get
+        
+      # iOSビルド (証明書不要の No Code Sign オプション)
+      # 実際の署名はAppStore Connectへのアップロード時に行われる
+      - name: Build iOS
+        run: |
+          flutter build ios --release --no-codesign \
+            --dart-define=GEMINI_API_KEY=dist-build-key \
+            --dart-define=AI_PROXY_URL=${{ secrets.VPS_PROXY_URL }} \
+            --dart-define=USE_PROXY=true
+            
+      # TestFlight へのアップロード
+      # App Store Connect API Key を GitHub Secrets に設定する必要あり
+      - name: Upload to TestFlight
+        uses: apple-actions/upload-testflight-build@v1
+        with:
+          app-path: 'build/ios/iphoneos/Runner.app'
+          issuer-id: ${{ secrets.APPSTORE_ISSUER_ID }}
+          api-key-id: ${{ secrets.APPSTORE_API_KEY_ID }}
+          api-private-key: ${{ secrets.APPSTORE_API_PRIVATE_KEY }}
diff --git a/lib/main.dart b/lib/main.dart
index 64b46cc..e79db1e 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -7,6 +7,7 @@ import 'models/user_profile.dart';
 import 'models/menu_settings.dart';
 import 'providers/theme_provider.dart';
 import 'screens/main_screen.dart';
+import 'screens/license_screen.dart';
 import 'services/migration_service.dart';
 
 /// Pro版かLite版かを判定するビルド時フラグ
@@ -111,6 +112,9 @@ class MyApp extends ConsumerWidget {
 
       navigatorObservers: [routeObserver],
       home: const MainScreen(),
+      routes: {
+        '/upgrade': (context) => const LicenseScreen(),
+      },
     );
   }
 }
diff --git a/lib/providers/license_provider.dart b/lib/providers/license_provider.dart
new file mode 100644
index 0000000..7a03398
--- /dev/null
+++ b/lib/providers/license_provider.dart
@@ -0,0 +1,19 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../services/license_service.dart';
+
+/// ライセンス状態の非同期プロバイダー
+///
+/// アプリ起動時に一度だけVPSに問い合わせ、結果をキャッシュする。
+/// 手動更新は [licenseStatusProvider].invalidate() を呼ぶ。
+final licenseStatusProvider = FutureProvider<LicenseStatus>((ref) async {
+  return LicenseService.checkStatus();
+});
+
+/// Pro版かどうか（ナビゲーション・機能解放の分岐に使う）
+final isProProvider = Provider<bool>((ref) {
+  final statusAsync = ref.watch(licenseStatusProvider);
+  return statusAsync.maybeWhen(
+    data: (status) => status == LicenseStatus.pro,
+    orElse: () => false,
+  );
+});
diff --git a/lib/screens/home_screen.dart b/lib/screens/home_screen.dart
index 1fb79b4..b486e46 100644
--- a/lib/screens/home_screen.dart
+++ b/lib/screens/home_screen.dart
@@ -24,6 +24,7 @@ import 'package:lucide_icons/lucide_icons.dart';
 import '../widgets/prefecture_filter_sheet.dart';
 import '../widgets/pending_analysis_banner.dart';
 import '../widgets/common/error_retry_widget.dart';
+;
 
 // CR-006: NotifierProviderでオンボーディングチェック状態を管理（グローバル変数を削除）
 class HasCheckedOnboardingNotifier extends Notifier<bool> {
diff --git a/lib/screens/license_screen.dart b/lib/screens/license_screen.dart
new file mode 100644
index 0000000..4671f85
--- /dev/null
+++ b/lib/screens/license_screen.dart
@@ -0,0 +1,240 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import '../providers/license_provider.dart';
+import '../services/license_service.dart';
+import '../theme/app_colors.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+class LicenseScreen extends ConsumerStatefulWidget {
+  const LicenseScreen({super.key});
+
+  @override
+  ConsumerState<LicenseScreen> createState() => _LicenseScreenState();
+}
+
+class _LicenseScreenState extends ConsumerState<LicenseScreen> {
+  final _keyController = TextEditingController();
+  bool _isLoading = false;
+  String? _errorMessage;
+
+  @override
+  void dispose() {
+    _keyController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _activate() async {
+    final key = _keyController.text.trim();
+    if (key.isEmpty) return;
+
+    setState(() {
+      _isLoading = true;
+      _errorMessage = null;
+    });
+
+    final result = await LicenseService.activate(key);
+
+    if (mounted) {
+      if (result.success) {
+        ref.invalidate(licenseStatusProvider);
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(
+            content: const Text('Pro版ライセンスを有効化しました'),
+            backgroundColor: Theme.of(context).extension<AppColors>()!.success,
+          ),
+        );
+        Navigator.of(context).pop();
+      } else {
+        setState(() {
+          _errorMessage = result.message;
+          _isLoading = false;
+        });
+      }
+    }
+  }
+
+  void _openStore() async {
+    const storeUrl = 'https://posimai-store.soar-enrich.com'; // TODO: 実際のストアURL
+    final uri = Uri.parse(storeUrl);
+    if (await canLaunchUrl(uri)) {
+      await launchUrl(uri, mode: LaunchMode.externalApplication);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final colors = Theme.of(context).extension<AppColors>()!;
+    final isPro = ref.watch(isProProvider);
+
+    return Scaffold(
+      backgroundColor: colors.brandSurface,
+      appBar: AppBar(
+        title: Text(
+          'ライセンスの有効化',
+          style: TextStyle(color: colors.textPrimary, fontWeight: FontWeight.bold),
+        ),
+        backgroundColor: colors.brandSurface,
+        elevation: 0,
+        iconTheme: IconThemeData(color: colors.textPrimary),
+      ),
+      body: SafeArea(
+        child: isPro ? _buildProState(colors) : _buildActivationForm(colors),
+      ),
+    );
+  }
+
+  Widget _buildProState(AppColors colors) {
+    return Center(
+      child: Padding(
+        padding: const EdgeInsets.all(32.0),
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(Icons.verified, size: 64, color: colors.success),
+            const SizedBox(height: 24),
+            Text(
+              'Pro版ライセンス有効',
+              style: TextStyle(
+                fontSize: 20,
+                fontWeight: FontWeight.bold,
+                color: colors.textPrimary,
+              ),
+            ),
+            const SizedBox(height: 16),
+            Text(
+              'AI解析を無制限にご利用いただけます。\nご購入ありがとうございました。',
+              textAlign: TextAlign.center,
+              style: TextStyle(color: colors.textSecondary, height: 1.5),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildActivationForm(AppColors colors) {
+    return SingleChildScrollView(
+      padding: const EdgeInsets.all(24.0),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.stretch,
+        children: [
+          Icon(Icons.key, size: 64, color: colors.brandPrimary),
+          const SizedBox(height: 24),
+          Text(
+            'ご購入ありがとうございます。',
+            textAlign: TextAlign.center,
+            style: TextStyle(
+              fontSize: 18,
+              fontWeight: FontWeight.bold,
+              color: colors.textPrimary,
+            ),
+          ),
+          const SizedBox(height: 8),
+          Text(
+            'メールで受け取った「PONSHU-」から始まる\nライセンスキーを入力してください。',
+            textAlign: TextAlign.center,
+            style: TextStyle(color: colors.textSecondary, height: 1.5),
+          ),
+          const SizedBox(height: 32),
+          TextField(
+            controller: _keyController,
+            decoration: InputDecoration(
+              hintText: 'PONSHU-XXXX-XXXX-XXXX',
+              filled: true,
+              fillColor: colors.surfaceSubtle,
+              border: OutlineInputBorder(
+                borderRadius: BorderRadius.circular(12),
+                borderSide: BorderSide(color: colors.divider),
+              ),
+              enabledBorder: OutlineInputBorder(
+                borderRadius: BorderRadius.circular(12),
+                borderSide: BorderSide(color: colors.divider),
+              ),
+              focusedBorder: OutlineInputBorder(
+                borderRadius: BorderRadius.circular(12),
+                borderSide: BorderSide(color: colors.brandPrimary, width: 2),
+              ),
+              prefixIcon: Icon(Icons.vpn_key_outlined, color: colors.iconSubtle),
+            ),
+            textCapitalization: TextCapitalization.characters,
+            onSubmitted: (_) => _activate(),
+          ),
+          if (_errorMessage != null) ...[
+            const SizedBox(height: 16),
+            Container(
+              padding: const EdgeInsets.all(12),
+              decoration: BoxDecoration(
+                color: colors.error.withValues(alpha: 0.1),
+                borderRadius: BorderRadius.circular(8),
+                border: Border.all(color: colors.error.withValues(alpha: 0.3)),
+              ),
+              child: Row(
+                children: [
+                  Icon(Icons.error_outline, color: colors.error, size: 20),
+                  const SizedBox(width: 8),
+                  Expanded(
+                    child: Text(
+                      _errorMessage!,
+                      style: TextStyle(color: colors.error, fontSize: 13),
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+          const SizedBox(height: 24),
+          ElevatedButton(
+            onPressed: _isLoading ? null : _activate,
+            style: ElevatedButton.styleFrom(
+              backgroundColor: colors.brandPrimary,
+              foregroundColor: Colors.white,
+              padding: const EdgeInsets.symmetric(vertical: 16),
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(12),
+              ),
+              elevation: 0,
+            ),
+            child: _isLoading
+                ? const SizedBox(
+                    height: 20,
+                    width: 20,
+                    child: CircularProgressIndicator(strokeWidth: 2, color: Colors.white),
+                  )
+                : const Text(
+                    '有効化する',
+                    style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
+                  ),
+          ),
+          const SizedBox(height: 48),
+          Divider(color: colors.divider),
+          const SizedBox(height: 24),
+          Text(
+            'ライセンスをお持ちでない方',
+            textAlign: TextAlign.center,
+            style: TextStyle(color: colors.textSecondary, fontWeight: FontWeight.bold),
+          ),
+          const SizedBox(height: 16),
+          OutlinedButton(
+            onPressed: _openStore,
+            style: OutlinedButton.styleFrom(
+              foregroundColor: colors.brandPrimary,
+              side: BorderSide(color: colors.brandPrimary),
+              padding: const EdgeInsets.symmetric(vertical: 16),
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(12),
+              ),
+            ),
+            child: const Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                Icon(Icons.shopping_cart_outlined, size: 20),
+                SizedBox(width: 8),
+                Text('ストアで購入する', style: TextStyle(fontWeight: FontWeight.bold)),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
diff --git a/lib/screens/main_screen.dart b/lib/screens/main_screen.dart
index 2e4d2a0..d239d85 100644
--- a/lib/screens/main_screen.dart
+++ b/lib/screens/main_screen.dart
@@ -1,7 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:lucide_icons/lucide_icons.dart';
-import '../main.dart'; // Import isProVersion flag
+import '../main.dart'; // Import isBusinessApp flag
+import '../providers/license_provider.dart';
 import '../providers/theme_provider.dart'; // Access userProfileProvider
 import '../providers/navigation_provider.dart'; // Track current tab index
 import '../utils/translations.dart'; // Translation helper
@@ -100,6 +101,13 @@ class _MainScreenState extends ConsumerState<MainScreen> {
             onPressed: () => Navigator.of(context).pop(),
             child: const Text('閉じる'),
           ),
+          FilledButton(
+            onPressed: () {
+              Navigator.of(context).pop();
+              Navigator.of(context).pushNamed('/upgrade');
+            },
+            child: const Text('ライセンスを有効化'),
+          ),
         ],
       ),
     );
@@ -127,53 +135,53 @@ class _MainScreenState extends ConsumerState<MainScreen> {
     });
 
     final userProfile = ref.watch(userProfileProvider);
+    final isPro = ref.watch(isProProvider);
     // isBusinessApp=false（消費者向けビルド）では店舗モードを完全に無効化
     final isBusiness = isBusinessApp && userProfile.isBusinessMode;
     final t = Translations(userProfile.locale); // Translation helper
 
     // Define Screens for each mode
-    // Lite版のPro限定タブは表示されないようにダミー画面を配置
-    // （タップ時にダイアログで対応するため、画面遷移は発生しない）
+    // Pro版でないタブはダミー画面を配置（タップ時にダイアログで対応）
     final List<Widget> screens = isBusiness
         ? [
             const HomeScreen(), // Inventory Management
-            isProVersion ? const InstaSupportScreen() : const HomeScreen(), // Instagram Support (Pro only)
-            isProVersion ? const AnalyticsScreen() : const HomeScreen(), // Analytics (Pro only)
+            isPro ? const InstaSupportScreen() : const HomeScreen(), // Instagram Support (Pro only)
+            isPro ? const AnalyticsScreen() : const HomeScreen(), // Analytics (Pro only)
             const ShopSettingsScreen(), // Shop Settings
           ]
         : [
             const HomeScreen(), // My Sake List
-            isProVersion ? const ScanARScreen() : const HomeScreen(), // QR Scan (Pro only)
+            isPro ? const ScanARScreen() : const HomeScreen(), // QR Scan (Pro only)
             const SommelierScreen(), // Sommelier
             const BreweryMapScreen(), // Map
             const SoulScreen(), // MyPage/Settings
           ];
 
     // Define Navigation Items (with translation)
-    // Lite版では王冠バッジを表示
+    // Pro版でない場合は王冠バッジを表示
     final List<NavigationDestination> destinations = isBusiness
         ? [
             NavigationDestination(
-               icon: const Padding(padding: EdgeInsets.only(bottom: 2), child: Text('🍶', style: TextStyle(fontSize: 22))),
+               icon: const Padding(padding: EdgeInsets.only(bottom: 2), child: Icon(LucideIcons.home)),
                label: t['home'],
             ),
             NavigationDestination(
-              icon: isProVersion ? const Icon(LucideIcons.instagram) : const _IconWithCrownBadge(icon: LucideIcons.instagram),
+              icon: isPro ? const Icon(LucideIcons.instagram) : const _IconWithCrownBadge(icon: LucideIcons.instagram),
               label: t['promo'],
             ),
             NavigationDestination(
-              icon: isProVersion ? const Icon(LucideIcons.barChart) : const _IconWithCrownBadge(icon: LucideIcons.barChart),
+              icon: isPro ? const Icon(LucideIcons.barChart) : const _IconWithCrownBadge(icon: LucideIcons.barChart),
               label: t['analytics'],
             ),
             NavigationDestination(icon: const Icon(LucideIcons.store), label: t['shop']),
           ]
         : [
             NavigationDestination(
-              icon: const Padding(padding: EdgeInsets.only(bottom: 2), child: Text('🍶', style: TextStyle(fontSize: 22))),
+              icon: const Padding(padding: EdgeInsets.only(bottom: 2), child: Icon(LucideIcons.home)),
               label: t['home'],
             ),
             NavigationDestination(
-              icon: isProVersion ? const Icon(LucideIcons.scanLine) : const _IconWithCrownBadge(icon: LucideIcons.scanLine),
+              icon: isPro ? const Icon(LucideIcons.scanLine) : const _IconWithCrownBadge(icon: LucideIcons.scanLine),
               label: t['scan'],
             ),
             NavigationDestination(icon: const Icon(LucideIcons.sparkles), label: t['sommelier']),
@@ -194,8 +202,8 @@ class _MainScreenState extends ConsumerState<MainScreen> {
       bottomNavigationBar: NavigationBar(
         selectedIndex: _currentIndex,
         onDestinationSelected: (index) {
-          // Lite版でPro限定タブをタップした場合はダイアログを表示
-          if (!isProVersion) {
+          // Pro版でない場合にPro限定タブをタップしたらダイアログを表示
+          if (!isPro) {
             if (isBusiness) {
               // ビジネスモード: Instagram (index 1) と Analytics (index 2) がPro限定
               if (index == 1) {
diff --git a/lib/services/license_service.dart b/lib/services/license_service.dart
new file mode 100644
index 0000000..c8eda33
--- /dev/null
+++ b/lib/services/license_service.dart
@@ -0,0 +1,157 @@
+import 'dart:convert';
+import 'package:flutter/foundation.dart';
+import 'package:http/http.dart' as http;
+import 'package:shared_preferences/shared_preferences.dart';
+import 'device_service.dart';
+import '../secrets.dart';
+
+/// ライセンス状態
+enum LicenseStatus {
+  /// 無料版（AI解析は1日50回まで利用可能）
+  free,
+
+  /// Pro版ライセンス有効（Pro機能すべて解放）
+  pro,
+
+  /// ライセンス無効化済み（不正利用・返金等）
+  revoked,
+
+  /// オフライン / サーバー疎通不可（キャッシュ利用）
+  offline,
+}
+
+/// ライセンス管理サービス
+///
+/// ## 状態管理の優先順位
+/// 1. オンライン時: VPSに問い合わせた結果を使用 + SharedPreferencesにキャッシュ
+/// 2. オフライン時: SharedPreferencesのキャッシュを使用 (Pro状態を維持)
+///
+/// ## ライセンスキー形式
+/// PONSHU-XXXX-XXXX-XXXX (16バイト hex, 大文字)
+class LicenseService {
+  static const _prefLicenseKey    = 'ponshu_license_key';
+  static const _prefCachedStatus  = 'ponshu_license_status_cache';
+  static const _prefCachedAt      = 'ponshu_license_cached_at';
+  static const _cacheValidSeconds = 24 * 60 * 60; // 24時間キャッシュ有効
+
+  // ========== Public API ==========
+
+  /// アプリ起動時に呼ぶ: ライセンス状態を確認して返す
+  static Future<LicenseStatus> checkStatus() async {
+    final prefs    = await SharedPreferences.getInstance();
+    final savedKey = prefs.getString(_prefLicenseKey) ?? '';
+
+    // ライセンスキーが保存済み → サーバーで検証
+    if (savedKey.isNotEmpty) {
+      try {
+        final status = await _validateKeyWithServer(savedKey);
+        await _cacheStatus(prefs, status);
+        return status;
+      } catch (e) {
+        debugPrint('[License] Server unreachable, using cache: $e');
+        return _getCachedStatus(prefs);
+      }
+    }
+
+    // ライセンスキーなし → 無料版
+    return LicenseStatus.free;
+  }
+
+  /// ライセンスキーをアクティベートする
+  ///
+  /// 成功: true + 空メッセージ
+  /// 失敗: false + エラーメッセージ
+  static Future<({bool success, String message})> activate(String rawKey) async {
+    final key = rawKey.trim().toUpperCase();
+
+    if (!_isValidKeyFormat(key)) {
+      return (success: false, message: 'キーの形式が正しくありません\n(例: PONSHU-XXXX-XXXX-XXXX)');
+    }
+
+    final status = await _validateKeyWithServer(key);
+
+    if (status == LicenseStatus.pro) {
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.setString(_prefLicenseKey, key);
+      await _cacheStatus(prefs, LicenseStatus.pro);
+      debugPrint('[License] Activated successfully.');
+      return (success: true, message: '');
+    }
+
+    if (status == LicenseStatus.revoked) {
+      return (success: false, message: 'このライセンスは無効化されています。\nサポートにお問い合わせください。');
+    }
+
+    return (success: false, message: 'ライセンスキーが見つかりません。\nご購入時のメールをご確認ください。');
+  }
+
+  /// ライセンスキーがローカルに保存されているか
+  static Future<bool> hasLicenseKey() async {
+    final prefs = await SharedPreferences.getInstance();
+    return (prefs.getString(_prefLicenseKey) ?? '').isNotEmpty;
+  }
+
+  /// ライセンスをリセット（デバッグ用）
+  static Future<void> reset() async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.remove(_prefLicenseKey);
+    await prefs.remove(_prefCachedStatus);
+    await prefs.remove(_prefCachedAt);
+    _cachedTrialInfo = null;
+    debugPrint('[License] Reset complete.');
+  }
+
+  // ========== Private Helpers ==========
+
+  static bool _isValidKeyFormat(String key) {
+    final regex = RegExp(r'^PONSHU-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}$');
+    return regex.hasMatch(key);
+  }
+
+  static Future<LicenseStatus> _validateKeyWithServer(String key) async {
+    try {
+      final deviceId = await DeviceService.getDeviceId();
+      final response = await http.post(
+        Uri.parse('${Secrets.aiProxyBaseUrl}/license/validate'),
+        headers: {'Content-Type': 'application/json'},
+        body: jsonEncode({'license_key': key, 'device_id': deviceId}),
+      ).timeout(const Duration(seconds: 15));
+
+      final data = jsonDecode(utf8.decode(response.bodyBytes)) as Map<String, dynamic>;
+
+      if (data['valid'] == true) return LicenseStatus.pro;
+      if ((data['error'] as String? ?? '').contains('無効化')) return LicenseStatus.revoked;
+      return LicenseStatus.trialExpired;
+
+    } catch (e) {
+      debugPrint('[License] Validation network error: $e');
+      return LicenseStatus.offline;
+    }
+  }
+
+  static Future<void> _cacheStatus(SharedPreferences prefs, LicenseStatus status) async {
+    await prefs.setString(_prefCachedStatus, status.name);
+    await prefs.setString(_prefCachedAt, DateTime.now().toIso8601String());
+  }
+
+  static LicenseStatus _getCachedStatus(SharedPreferences prefs) {
+    final cached  = prefs.getString(_prefCachedStatus);
+    final cachedAt = prefs.getString(_prefCachedAt);
+
+    if (cached == null) return LicenseStatus.free;
+
+    // キャッシュが古すぎる場合はfreeにフォールバック
+    if (cachedAt != null) {
+      final age = DateTime.now().difference(DateTime.parse(cachedAt));
+      if (age.inSeconds > _cacheValidSeconds && cached != LicenseStatus.pro.name) {
+        return LicenseStatus.free;
+      }
+    }
+
+    // Pro キャッシュはオフラインでも維持（購入者を締め出さない）
+    return LicenseStatus.values.firstWhere(
+      (s) => s.name == cached,
+      orElse: () => LicenseStatus.free,
+    );
+  }
+}
diff --git a/lib/widgets/settings/other_settings_section.dart b/lib/widgets/settings/other_settings_section.dart
index 0beb523..2463779 100644
--- a/lib/widgets/settings/other_settings_section.dart
+++ b/lib/widgets/settings/other_settings_section.dart
@@ -54,6 +54,15 @@ class _OtherSettingsSectionState extends ConsumerState<OtherSettingsSection> {
           color: appColors.surfaceSubtle,
           child: Column(
             children: [
+              ListTile(
+                leading: Icon(LucideIcons.key, color: appColors.brandPrimary),
+                title: Text('ライセンスの有効化', style: TextStyle(color: appColors.textPrimary)),
+                subtitle: Text('Pro版の認証・フリートライアル状態', style: TextStyle(color: appColors.textSecondary)),
+                trailing: Icon(LucideIcons.chevronRight, color: appColors.iconSubtle),
+                onTap: () => Navigator.of(context).pushNamed('/upgrade'),
+              ),
+              Divider(height: 1, color: appColors.divider),
+              
               if (widget.showBusinessMode) ...[
                 ListTile(
                   leading: Icon(LucideIcons.store, color: appColors.warning),
diff --git a/scripts/deploy_android.ps1 b/scripts/deploy_android.ps1
new file mode 100644
index 0000000..cb74c32
--- /dev/null
+++ b/scripts/deploy_android.ps1
@@ -0,0 +1,45 @@
+# deploy_android.ps1
+# Firebase App Distribution 用のビルド・配布スクリプト (Ponshu Room Lite)
+#
+# 前提:
+#   npm install -g firebase-tools
+#   firebase login
+#
+# 引数:
+#   -ReleaseNotes "アップデート内容" (省略時は "Minor update")
+
+param (
+    [string]$ReleaseNotes = "Minor update"
+)
+
+$ErrorActionPreference = "Stop"
+
+Write-Host "🍶 Ponshu Room Lite: Android 商用ビルド・配布を開始します" -ForegroundColor Cyan
+
+# 1. ビルド実行 (APIキーはダミー、VPSへ接続)
+Write-Host "  -> ビルディング APK..." -ForegroundColor Yellow
+flutter build apk --release `
+  --dart-define=GEMINI_API_KEY=dist-build-key `
+  --dart-define=AI_PROXY_URL=https://(ここにVPSのドメインを入力) `
+  --dart-define=USE_PROXY=true `
+  --obfuscate `
+  --split-debug-info=build\debug-info
+
+$ApkPath = "build\app\outputs\flutter-apk\app-release.apk"
+
+if (-Not (Test-Path $ApkPath)) {
+    Write-Host "❌ エラー: APKが生成されていません ($ApkPath)" -ForegroundColor Red
+    exit 1
+}
+
+# 2. Firebase App Distributionへアップロード
+# 注意: 初回実行前に Firebase Console で App Distribution を有効にし、アプリIDを調べて以下に入れる
+$FirebaseAppId = "1:XXXXXXXXXXXX:android:XXXXXXXXXXXX" # <--- TODO: 書き換える
+
+Write-Host "  -> Firebaseへアップロード中..." -ForegroundColor Yellow
+firebase appdistribution:distribute $ApkPath `
+  --app $FirebaseAppId `
+  --groups "beta-testers" `
+  --release-notes $ReleaseNotes
+
+Write-Host "✅ 配布完了！テスターに通知メールが送信されました。" -ForegroundColor Green
diff --git a/tools/proxy/.env.example b/tools/proxy/.env.example
index 7949c93..8b8aa21 100644
--- a/tools/proxy/.env.example
+++ b/tools/proxy/.env.example
@@ -1,13 +1,25 @@
-# Gemini API Key
+# ============================================================
+# Ponshu Room Proxy Server — 環境変数設定例
+# ============================================================
+
+# [必須] Gemini API Key
 GEMINI_API_KEY=your_gemini_api_key_here
 
-# Proxy Authentication Token (recommended for security)
-# Generate a random string: openssl rand -hex 32
+# [必須] Proxy認証トークン (生成: openssl rand -hex 32)
 PROXY_AUTH_TOKEN=your_secure_random_token_here
 
-# Daily request limit per device
+# [任意] 1デバイスあたりの日次リクエスト上限
 DAILY_LIMIT=50
 
-# Redis connection settings (default values for Docker Compose)
+# Redis接続設定 (Docker Compose デフォルト値)
 REDIS_HOST=redis
 REDIS_PORT=6379
+
+# サポート連絡先 (ライセンス有効化画面で表示)
+APP_SUPPORT_EMAIL=support@posimai.soar-enrich.com
+
+# ============================================================
+# 注意: Stripe/Resendの処理はメインサーバー (server.js) で行います
+# Stripe Webhook → server.js → ライセンスキー生成 → Resendでメール送信
+# このプロキシサーバーはライセンス検証 (/license/validate) のみ担当
+# ============================================================
diff --git a/tools/proxy/server.js b/tools/proxy/server.js
index bc0a3dd..586b8a8 100644
--- a/tools/proxy/server.js
+++ b/tools/proxy/server.js
@@ -2,6 +2,7 @@ const express = require('express');
 const bodyParser = require('body-parser');
 const { GoogleGenerativeAI } = require('@google/generative-ai');
 const { createClient } = require('redis');
+const crypto = require('crypto');
 require('dotenv').config();
 
 const app = express();
@@ -14,7 +15,9 @@ const DAILY_LIMIT = parseInt(process.env.DAILY_LIMIT || '50', 10);
 const REDIS_HOST = process.env.REDIS_HOST || 'localhost';
 const REDIS_PORT = parseInt(process.env.REDIS_PORT || '6379', 10);
 
-// Redis Client Setup
+const APP_SUPPORT_EMAIL = process.env.APP_SUPPORT_EMAIL || 'support@posimai.soar-enrich.com';
+
+// ========== Redis Client Setup ==========
 const redisClient = createClient({
     socket: {
         host: REDIS_HOST,
@@ -30,22 +33,30 @@ redisClient.on('connect', () => {
     console.log(`[Redis] Connected to ${REDIS_HOST}:${REDIS_PORT}`);
 });
 
-// Initialize Redis connection
 (async () => {
     try {
         await redisClient.connect();
     } catch (err) {
         console.error('[Redis] Failed to connect:', err);
-        process.exit(1); // Exit if Redis is unavailable
+        process.exit(1);
     }
 })();
 
-// Authentication Middleware (skip for /health)
+// ========== Gemini Client ==========
+const genAI = new GoogleGenerativeAI(API_KEY);
+const model = genAI.getGenerativeModel({
+    model: "gemini-2.5-flash",
+    generationConfig: {
+        responseMimeType: "application/json",
+        temperature: 0.2,
+    }
+});
+
+// ========== Authentication Middleware ==========
 function authMiddleware(req, res, next) {
     if (!AUTH_TOKEN) {
-        // If no token configured, skip auth (backward compatibility)
-        console.warn('[Auth] WARNING: PROXY_AUTH_TOKEN is not set. Authentication disabled.');
-        return next();
+        console.error('[Auth] FATAL: PROXY_AUTH_TOKEN is not set.');
+        return res.status(503).json({ success: false, error: 'Server misconfigured: authentication token not set' });
     }
 
     const authHeader = req.headers['authorization'];
@@ -54,7 +65,7 @@ function authMiddleware(req, res, next) {
         return res.status(401).json({ success: false, error: 'Authentication required' });
     }
 
-    const token = authHeader.substring(7); // Remove 'Bearer ' prefix
+    const token = authHeader.substring(7);
     if (token !== AUTH_TOKEN) {
         console.log(`[Auth] Rejected: Invalid token`);
         return res.status(403).json({ success: false, error: 'Invalid authentication token' });
@@ -63,84 +74,55 @@ function authMiddleware(req, res, next) {
     next();
 }
 
-// Global middleware: Body parser first, then auth (skip /health)
+// ========== Global Middleware (JSON body parser + auth) ==========
 app.use(bodyParser.json({ limit: '10mb' }));
+
 app.use((req, res, next) => {
-    if (req.path === '/health') return next();
+    const publicPaths = ['/health', '/license/validate'];
+    if (publicPaths.includes(req.path)) return next();
     authMiddleware(req, res, next);
 });
 
-// Gemini Client with JSON response configuration
-const genAI = new GoogleGenerativeAI(API_KEY);
-const model = genAI.getGenerativeModel({
-    model: "gemini-2.5-flash", // Flutter側(gemini_service.dart)と統一
-    generationConfig: {
-        responseMimeType: "application/json", // Force JSON-only output
-        temperature: 0.2, // チャート一貫性向上のため（Flutter側と統一）
-    }
-});
+// ========== Helper Functions ==========
 
-// Helper: Get Today's Date String (YYYY-MM-DD)
 function getTodayString() {
     return new Date().toISOString().split('T')[0];
 }
 
-// Helper: Check & Update Rate Limit (Redis-based)
 async function checkRateLimit(deviceId) {
-    const today = getTodayString();
+    const today    = getTodayString();
     const redisKey = `usage:${deviceId}:${today}`;
 
     try {
-        // Get current usage count
         const currentCount = await redisClient.get(redisKey);
-        const count = currentCount ? parseInt(currentCount, 10) : 0;
-        const remaining = DAILY_LIMIT - count;
+        const count        = currentCount ? parseInt(currentCount, 10) : 0;
+        const remaining    = DAILY_LIMIT - count;
 
-        return {
-            allowed: remaining > 0,
-            current: count,
-            limit: DAILY_LIMIT,
-            remaining: remaining,
-            redisKey: redisKey
-        };
+        return { allowed: remaining > 0, current: count, limit: DAILY_LIMIT, remaining, redisKey };
     } catch (err) {
         console.error('[Redis] Error checking rate limit:', err);
-        // Fallback: deny request if Redis is down
-        return {
-            allowed: false,
-            current: 0,
-            limit: DAILY_LIMIT,
-            remaining: 0,
-            error: 'Rate limit check failed'
-        };
+        return { allowed: false, current: 0, limit: DAILY_LIMIT, remaining: 0, error: 'Rate limit check failed' };
     }
 }
 
-// Helper: Increment Usage Count (Redis-based)
 async function incrementUsage(deviceId) {
-    const today = getTodayString();
+    const today    = getTodayString();
     const redisKey = `usage:${deviceId}:${today}`;
 
-    try {
-        // Increment count
-        const newCount = await redisClient.incr(redisKey);
+    const newCount = await redisClient.incr(redisKey);
 
-        // Set expiration to end of day (86400 seconds = 24 hours)
-        const now = new Date();
-        const midnight = new Date(now);
-        midnight.setHours(24, 0, 0, 0);
-        const secondsUntilMidnight = Math.floor((midnight - now) / 1000);
+    const now     = new Date();
+    const midnight = new Date(now);
+    midnight.setHours(24, 0, 0, 0);
+    const secondsUntilMidnight = Math.floor((midnight - now) / 1000);
+    await redisClient.expire(redisKey, secondsUntilMidnight);
 
-        await redisClient.expire(redisKey, secondsUntilMidnight);
-
-        return newCount;
-    } catch (err) {
-        console.error('[Redis] Error incrementing usage:', err);
-        throw err;
-    }
+    return newCount;
 }
 
-// API Endpoint (authentication enforced by global middleware)
+// ========== API Endpoints ==========
+
+// 既存: AI解析 (認証必須)
 app.post('/analyze', async (req, res) => {
     const { device_id, images, prompt } = req.body;
 
@@ -149,7 +131,6 @@ app.post('/analyze', async (req, res) => {
     }
 
     try {
-        // 1. Check Rate Limit (Redis-based)
         const limitStatus = await checkRateLimit(device_id);
         if (!limitStatus.allowed) {
             console.log(`[Limit Reached] Device: ${device_id} (${limitStatus.current}/${limitStatus.limit})`);
@@ -160,33 +141,24 @@ app.post('/analyze', async (req, res) => {
             });
         }
 
-        console.log(`[Request] Device: ${device_id} | Images: ${images ? images.length : 0} | Current: ${limitStatus.current}/${limitStatus.limit}`);
+        console.log(`[Request] Device: ${device_id} | Images: ${images ? images.length : 0} | Count: ${limitStatus.current}/${limitStatus.limit}`);
 
-        // 2. Prepare Gemini Request
-        // Base64 images to GenerativeContentBlob
         const imageParts = (images || []).map(base64 => ({
-            inlineData: {
-                data: base64,
-                mimeType: "image/jpeg"
-            }
+            inlineData: { data: base64, mimeType: "image/jpeg" }
         }));
 
-        const result = await model.generateContent([prompt, ...imageParts]);
+        const result   = await model.generateContent([prompt, ...imageParts]);
         const response = await result.response;
-        const text = response.text();
+        const text     = response.text();
 
-        // 3. Parse JSON from Markdown (e.g. ```json ... ```)
         console.log(`[Debug] Gemini raw response (first 200 chars): ${text.substring(0, 200)}`);
 
         const jsonMatch = text.match(/```json\n([\s\S]*?)\n```/) || text.match(/```([\s\S]*?)```/);
         let jsonData;
 
         if (jsonMatch) {
-            console.log('[Debug] Found JSON in code block');
             jsonData = JSON.parse(jsonMatch[1]);
         } else {
-            // Try parsing raw text if no code blocks
-            console.log('[Debug] Attempting to parse raw text as JSON');
             try {
                 jsonData = JSON.parse(text);
             } catch (parseError) {
@@ -195,38 +167,111 @@ app.post('/analyze', async (req, res) => {
             }
         }
 
-        // 4. Increment Usage (Redis-based)
         const newCount = await incrementUsage(device_id);
         console.log(`[Success] Device: ${device_id} | New Count: ${newCount}/${DAILY_LIMIT}`);
 
-        // 5. Send Response
         res.json({
             success: true,
             data: jsonData,
-            usage: {
-                today: newCount,
-                limit: DAILY_LIMIT
-            }
+            usage: { today: newCount, limit: DAILY_LIMIT }
         });
 
     } catch (error) {
         console.error('[Error] Gemini API or Redis Error:', error);
-        res.status(500).json({
-            success: false,
-            error: error.message || 'Internal Server Error'
-        });
+        res.status(500).json({ success: false, error: error.message || 'Internal Server Error' });
     }
 });
 
-// Health Check
+// 新規: ライセンス検証 (認証不要 — アプリが直接呼ぶ)
+app.post('/license/validate', async (req, res) => {
+    const { license_key, device_id } = req.body;
+
+    if (!license_key || !device_id) {
+        return res.status(400).json({ valid: false, error: 'Missing parameters' });
+    }
+
+    try {
+        const license = await redisClient.hGetAll(`license:${license_key}`);
+
+        if (!license || Object.keys(license).length === 0) {
+            return res.json({ valid: false, error: 'ライセンスキーが見つかりません' });
+        }
+
+        if (license.status === 'revoked') {
+            return res.json({ valid: false, error: 'このライセンスは無効化されています。サポートにお問い合わせください。' });
+        }
+
+        // 初回アクティベート
+        if (!license.deviceId || license.deviceId === '') {
+            await redisClient.hSet(`license:${license_key}`, 'deviceId', device_id);
+            await redisClient.hSet(`license:${license_key}`, 'activatedAt', new Date().toISOString());
+
+            console.log(`[License] Activated: ${license_key} → Device: ${device_id.substring(0, 8)}...`);
+            return res.json({ valid: true, plan: license.plan, activated: true });
+        }
+
+        // 既存デバイスの照合
+        if (license.deviceId !== device_id) {
+            console.log(`[License] Device mismatch: ${license_key}`);
+            return res.json({
+                valid: false,
+                error: '別のデバイスで登録済みです。端末変更の場合はサポートまでご連絡ください。',
+                supportEmail: APP_SUPPORT_EMAIL,
+            });
+        }
+
+        return res.json({ valid: true, plan: license.plan });
+
+    } catch (err) {
+        console.error('[License] Validate error:', err);
+        res.status(500).json({ valid: false, error: 'サーバーエラーが発生しました' });
+    }
+});
+
+// 管理用 — ライセンス失効 (認証必須)
+app.post('/admin/license/revoke', async (req, res) => {
+    const { license_key } = req.body;
+
+    if (!license_key) {
+        return res.status(400).json({ success: false, error: 'license_key required' });
+    }
+
+    try {
+        const exists = await redisClient.hExists(`license:${license_key}`, 'status');
+        if (!exists) {
+            return res.json({ success: false, error: 'License not found' });
+        }
+
+        await redisClient.hSet(`license:${license_key}`, 'status', 'revoked');
+        await redisClient.hSet(`license:${license_key}`, 'revokedAt', new Date().toISOString());
+
+        console.log(`[Admin] License revoked: ${license_key}`);
+        return res.json({ success: true, message: `License ${license_key} has been revoked` });
+
+    } catch (err) {
+        console.error('[Admin] Revoke error:', err);
+        res.status(500).json({ success: false, error: 'Server error' });
+    }
+});
+
+// ヘルスチェック
 app.get('/health', (req, res) => {
     res.send('OK');
 });
 
-// Start Server
+// ========== Server Start ==========
+if (!AUTH_TOKEN) {
+    console.error('[FATAL] PROXY_AUTH_TOKEN is not set. Refusing to start.');
+    process.exit(1);
+}
+if (!API_KEY) {
+    console.error('[FATAL] GEMINI_API_KEY is not set. Refusing to start.');
+    process.exit(1);
+}
+
 app.listen(PORT, '0.0.0.0', () => {
-    console.log(`Proxy Server running on port ${PORT}`);
-    if (!API_KEY) console.error('WARNING: GEMINI_API_KEY is not set!');
-    if (!AUTH_TOKEN) console.error('WARNING: PROXY_AUTH_TOKEN is not set! Authentication is disabled.');
-    else console.log('Authentication: Bearer Token enabled');
+    console.log(`[Server] Ponshu Room Proxy running on port ${PORT}`);
+    console.log(`[Server] Auth: Bearer Token enabled`);
+    console.log(`[Server] Daily Limit: ${DAILY_LIMIT} requests per device`);
+    console.log(`[Server] License validation: enabled`);
 });