diff --git a/app.json b/app.json
index d2ad426..28df652 100644
--- a/app.json
+++ b/app.json
@@ -10,7 +10,7 @@
     "newArchEnabled": true,
     "ios": {
       "supportsTablet": true,
-      "bundleIdentifier": "com.wellnuo.BluetoothScanner",
+      "bundleIdentifier": "com.serter2069.wellnuo.test",
       "appleTeamId": "UHLZD54ULZ",
       "deploymentTarget": "16.0",
       "infoPlist": {
diff --git a/app/(tabs)/profile/index.tsx b/app/(tabs)/profile/index.tsx
index 12e4099..2922f9a 100644
--- a/app/(tabs)/profile/index.tsx
+++ b/app/(tabs)/profile/index.tsx
@@ -7,7 +7,9 @@ import {
   Alert,
   Image,
   ScrollView,
+  ActivityIndicator,
 } from 'react-native';
+import { api } from '@/services/api';
 import { Ionicons } from '@expo/vector-icons';
 import { SafeAreaView } from 'react-native-safe-area-context';
 import * as SecureStore from 'expo-secure-store';
@@ -61,6 +63,7 @@ export default function ProfileScreen() {
 
   // Avatar
   const [avatarUri, setAvatarUri] = useState<string | null>(null);
+  const [isUploadingAvatar, setIsUploadingAvatar] = useState(false);
 
   useEffect(() => {
     loadAvatar();
@@ -68,6 +71,13 @@ export default function ProfileScreen() {
 
   const loadAvatar = async () => {
     try {
+      // First try to get cloud URL from user profile
+      if (user?.avatarUrl) {
+        setAvatarUri(user.avatarUrl);
+        await SecureStore.setItemAsync('userAvatar', user.avatarUrl);
+        return;
+      }
+      // Fallback to cached local avatar
       const uri = await SecureStore.getItemAsync('userAvatar');
       if (uri) {
         setAvatarUri(uri);
@@ -98,9 +108,30 @@ export default function ProfileScreen() {
       // Optimize image: resize to 400x400 and compress
       const optimizedUri = await optimizeAvatarImage(originalUri);
 
+      // Show optimistic update immediately
       setAvatarUri(optimizedUri);
-      await SecureStore.setItemAsync('userAvatar', optimizedUri);
-      toast.success('Avatar updated');
+
+      // Upload to cloud storage
+      setIsUploadingAvatar(true);
+      try {
+        const response = await api.updateProfileAvatar(optimizedUri);
+        if (response.ok && response.data?.avatarUrl) {
+          // Use cloud URL instead of local
+          setAvatarUri(response.data.avatarUrl);
+          await SecureStore.setItemAsync('userAvatar', response.data.avatarUrl);
+          toast.success('Avatar updated');
+        } else {
+          // Fallback to local storage if cloud upload fails
+          await SecureStore.setItemAsync('userAvatar', optimizedUri);
+          toast.error(response.error?.message || 'Cloud upload failed, saved locally');
+        }
+      } catch (error) {
+        console.error('Avatar upload error:', error);
+        await SecureStore.setItemAsync('userAvatar', optimizedUri);
+        toast.error('Upload failed, saved locally');
+      } finally {
+        setIsUploadingAvatar(false);
+      }
     }
   };
 
@@ -180,14 +211,24 @@ export default function ProfileScreen() {
             <TouchableOpacity
               style={styles.avatarContainer}
               onPress={handleAvatarChange}
+              disabled={isUploadingAvatar}
             >
               {avatarUri ? (
                 <Image source={{ uri: avatarUri }} style={styles.avatarImage} />
               ) : (
                 <Text style={styles.avatarText}>{userInitial}</Text>
               )}
+              {isUploadingAvatar && (
+                <View style={styles.avatarLoadingOverlay}>
+                  <ActivityIndicator size="large" color={AppColors.white} />
+                </View>
+              )}
             </TouchableOpacity>
-            <TouchableOpacity style={styles.avatarEditBadge} onPress={handleAvatarChange}>
+            <TouchableOpacity
+              style={styles.avatarEditBadge}
+              onPress={handleAvatarChange}
+              disabled={isUploadingAvatar}
+            >
               <Ionicons name="camera" size={14} color={AppColors.white} />
             </TouchableOpacity>
           </View>
@@ -339,6 +380,13 @@ const styles = StyleSheet.create({
     fontWeight: FontWeights.bold,
     color: AppColors.white,
   },
+  avatarLoadingOverlay: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: 'rgba(0, 0, 0, 0.5)',
+    borderRadius: AvatarSizes.xl / 2,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
   avatarEditBadge: {
     position: 'absolute',
     bottom: 0,