Why Flutter Apps Need a Privacy Policy
Flutter is a cross-platform framework that compiles to native code for iOS, Android, web, and desktop. Because a single Flutter codebase can deploy to multiple platforms, your privacy policy must address the requirements of each store and jurisdiction. Both Google Play and Apple App Store require a privacy policy URL before your app can be published.
Flutter apps commonly use Firebase for authentication, analytics, and crash reporting. Each of these services collects personal data that must be disclosed in your privacy policy. The typical Flutter app collects more data than developers realize because plugins and SDKs operate at the native platform level.
Google Play and Apple App Store Requirements
Both stores have specific privacy policy requirements that apply to all Flutter apps.
| Requirement | Google Play | Apple App Store |
|---|---|---|
| Privacy policy URL | Required for all apps | Required for all apps |
| Data Safety Section | Required -- must declare all data types collected | Privacy Nutrition Labels required |
| In-app access | Recommended -- link in app settings | Required -- must be accessible within the app |
| Third-party SDK disclosure | Must disclose all SDKs that collect data | Must declare in App Privacy details |
| Account deletion | Required if app supports account creation | Required if app supports account creation |
| Children's data | Must comply with Families Policy if targeting children | COPPA compliance required -- no tracking under 13 |
Flutter-Specific Data Collection
Common Flutter packages and SDKs that collect personal data you must disclose.
Firebase Analytics (firebase_analytics)
- Automatically collects device model, OS version, screen resolution, and app version
- Generates a Firebase Instance ID and app instance identifier
- Tracks user engagement events, session duration, and screen views
- Data sent to Google servers in the US -- must disclose for GDPR
Firebase Crashlytics (firebase_crashlytics)
- Collects crash stack traces, device state, and memory usage at time of crash
- Records Crashlytics installation UUID -- a unique device identifier
- Custom keys and logs may inadvertently capture user data if not sanitized
Device Info and Common Plugins
- device_info_plus exposes device model, manufacturer, OS version, and unique identifiers
- package_info_plus reveals app version and build number
- shared_preferences stores data locally that may include user settings or tokens
- connectivity_plus and geolocator access network state and GPS coordinates
Push Notifications and In-App Purchases
- firebase_messaging generates FCM tokens -- unique per-device notification identifiers
- in_app_purchase collects transaction data including purchase history and receipts
- RevenueCat (purchases_flutter) syncs subscription data to external servers
- OneSignal and other notification SDKs may collect advertising identifiers
Platform Permissions to Disclose
Flutter apps request permissions at the native platform level. Each permission grants access to personal data that must be disclosed in your privacy policy. Check your AndroidManifest.xml and Info.plist for the permissions your app actually uses.
| Permission | Data Accessed | Disclosure Needed |
|---|---|---|
| Camera | Photos, videos from device camera | Why you need camera access and where images are stored or transmitted |
| Location | GPS coordinates, approximate location | Whether location is used in foreground only or background, and who receives it |
| Contacts | Names, phone numbers, emails from address book | Why you access contacts and whether data leaves the device |
| Microphone | Audio recordings | When recording occurs, where audio is stored, and whether it is processed by third parties |
| Storage | Files on the device | What files you read or write and whether any are uploaded to servers |
| IDFA / GAID | Advertising identifier | Required for Apple ATT prompt -- must explain ad tracking and allow opt-out |
What Your Flutter App Privacy Policy Must Include
SDK and Plugin Data Disclosure
List every Flutter package and SDK that collects data -- Firebase Analytics, Crashlytics, AdMob, RevenueCat, Sentry, and any others in your pubspec.yaml.
Per-Platform Data Practices
Explain any differences in data collection between iOS, Android, and web builds. iOS ATT requirements, Android advertising ID usage, and web cookies each need separate disclosure.
Authentication Data
If you use Firebase Auth, Google Sign-In, Apple Sign-In, or other providers, disclose what profile data you receive and store (name, email, profile photo, provider ID).
Server-Side Data Processing
Disclose your backend infrastructure -- Firebase, Supabase, AWS, or custom servers. Include where data is stored geographically and your data processing agreements.
Push Notification Tokens
FCM and APNs tokens are personal data. Disclose that you collect them, what notifications you send, and how users can opt out of push notifications.
Related Resources
Privacy Policy for Mobile Apps
General mobile app compliance
Privacy Policy for Android Apps
Google Play compliance guide
Privacy Policy for iOS Apps
Apple App Store compliance
GDPR Privacy Policy Template
EU compliance requirements
Privacy Policy for Firebase
Firebase data compliance guide
Privacy Policy for React Native
Cross-platform alternative guide
CCPA Privacy Policy Example
California compliance requirements
Policy Generator
Create your compliant privacy policy