📋 Overview
Welcome to the Fun with Sudoku app. We respect your privacy. This policy explains what data we collect, how we use it, and how we protect it.
📦 Data We Collect
- Account Information: Email address, username, country
- Game Data: Score, XP, level, streak, rewards
- Device Information: OS version, app version
- Usage Analytics: Screen views and app activity (Firebase Analytics)
- Error Reports: App crash information (Firebase Crashlytics)
🎯 How We Use Data
- Account creation and authentication
- Saving your game progress and updating leaderboards
- Managing the daily puzzle and reward system
- Improving app performance and fixing bugs
- Anonymous scores for competitive rankings (leaderboards)
🔥 Services We Use
- Firebase Auth — User authentication
- Cloud Firestore — Game data and profile information
- Firebase Analytics — Usage statistics (anonymous)
- Firebase Crashlytics — Error reporting
- Google Play Billing — In-app purchases
These services are covered by Google's Privacy Policy.
💳 In-App Purchases
Fun with Sudoku offers optional in-app purchases via Google Play. Payment transactions are processed directly by Google Play; we never have access to your credit card or payment information.
🔒 Data Security
- All data is securely stored on Firebase infrastructure
- Passwords are managed by Firebase Authentication and are never stored in plain text
- OTP verification is performed server-side
- Sensitive operations (XP, rewards) are verified via Cloud Functions
👶 Children's Privacy
Our application is not directed to children under 13. If you are under 13, we recommend you do not use our app. If we learn we have unintentionally collected data from a user under 13, we will delete this data immediately.
✏️ Your Rights
- You can request access to your personal data in your account
- You can delete your account and all associated data (In-app Settings → Delete Account)
- You can request corrections to your game data
🔄 Policy Updates
We may update this privacy policy from time to time. Changes will be posted on this page. You will receive an in-app notification for significant changes.