diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index 6a9e36c..14f322c 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -21,6 +21,7 @@
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
+            android:screenOrientation="portrait"
             android:exported="true"
             android:launchMode="singleTop"
             android:taskAffinity=""
diff --git a/android/fastlane/Fastfile b/android/fastlane/Fastfile
index 320c2e5..48a1559 100644
--- a/android/fastlane/Fastfile
+++ b/android/fastlane/Fastfile
@@ -1,25 +1,28 @@
 default_platform(:android)
 
 platform :android do
-  desc "Déploiement Firebase via Gitea"
+  desc "Déploiement AAB vers Firebase"
   lane :deploy_firebase do
-    # 1. Décoder le Keystore depuis les secrets Gitea (voir Phase 4)
-    # On vérifie si le fichier existe déjà pour éviter d'écraser en local
+    # 1. Décoder le Keystore
     if ENV['ANDROID_KEYSTORE_BASE64']
       File.open("upload-keystore.jks", "wb") do |f|
         f.write(Base64.decode64(ENV['ANDROID_KEYSTORE_BASE64']))
       end
     end
 
-    # 2. Construire l'APK
-    sh("flutter build apk --release")
+    # 2. Construire l'App Bundle (.aab) au lieu de l'APK
+    # Note : Cela prend souvent un peu plus de RAM
+    sh("flutter build appbundle --release")
 
-    # 3. Envoyer à Firebase
+    # 3. Envoyer vers Firebase
     firebase_app_distribution(
       app: ENV["FIREBASE_ANDROID_APP_ID"],
       service_credentials_file: "firebase_credentials.json",
       groups: "testers",
-      release_notes: "Build automatique depuis Gitea Commit: #{ENV['GITHUB_SHA']}"
+      # --- CHANGEMENT IMPORTANT ICI ---
+      # On pointe vers le fichier AAB généré
+      android_artifact_path: "../build/app/outputs/bundle/release/app-release.aab",
+      release_notes: "Version AAB via Gitea. Commit: #{ENV['GITHUB_SHA']}"
     )
   end
 end
\ No newline at end of file
diff --git a/ios/Runner/Info.plist b/ios/Runner/Info.plist
index d9a4a3e..331fc6b 100644
--- a/ios/Runner/Info.plist
+++ b/ios/Runner/Info.plist
@@ -65,15 +65,11 @@
 	<key>UISupportedInterfaceOrientations</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
-		<string>UIInterfaceOrientationLandscapeLeft</string>
-		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
 	<key>UISupportedInterfaceOrientations~ipad</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
-		<string>UIInterfaceOrientationLandscapeLeft</string>
-		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
 
     <key>LSApplicationQueriesSchemes</key>
diff --git a/lib/main.dart b/lib/main.dart
index 9f34097..22639b1 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:firebase_core/firebase_core.dart';
 import 'package:travel_mate/blocs/balance/balance_bloc.dart';
@@ -47,6 +48,10 @@ import 'package:intl/date_symbol_data_local.dart';
 /// initializes Firebase, and starts the application.
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
+  await SystemChrome.setPreferredOrientations([
+    DeviceOrientation.portraitUp,
+    DeviceOrientation.portraitDown,
+  ]);
   await dotenv.load(fileName: ".env");
   await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
   await initializeDateFormatting('fr_FR', null);