Privacy Policy

Last updated: May 30, 2026

Pure Sudoku Zen does not sell personal data. The app is designed to keep the Sudoku experience calm, focused, and respectful of user privacy.

Information We May Collect

Pure Sudoku Zen may collect or store anonymous player profile information, Player Code, game progress and score information, leaderboard entries, challenge and rival-related data, app version/build metadata, device/platform information needed for functionality and stability, push notification token if notifications are enabled, and support messages you send to us.

How We Use Information

We use information to save progress, show your Player Code, submit leaderboard scores, enable challenges and rival features, improve app stability, provide support, prevent abuse, and maintain fair play.

Third-Party Services

Pure Sudoku Zen may use services such as Firebase to support anonymous profiles, cloud data, leaderboards, challenges, push notifications, and app stability. These services may process limited technical information needed to provide the app.

Push Notifications

If you allow notifications, Pure Sudoku Zen may use a device token to send relevant app notifications, such as challenge-related updates. You can disable notifications from your device settings at any time.

Data Retention

We keep data only as long as needed to provide the app experience, maintain fair play, support users, and comply with applicable requirements.

Data Deletion Requests

You may request deletion of your app-related data by contacting support. Please include your Player Code if available so we can identify the relevant profile.

Contact

For privacy questions or data deletion requests, contact: support@puresudokuzen.app