TankPuzzle · Privacy Policy

Last updated: 13 August 2026

TankPuzzle is developed by Dalibor Maksimović. This policy explains what data the game collects, why it is collected, and how it is stored and protected.

Data we collect

The game is pseudonymous. You choose a nickname, and the game generates a random User ID on your device. All game data is linked to that ID. We do not collect your real name, email address, phone number, contacts, or location.

• Username (pseudonym) – the name you choose when you first launch the game.
• User ID – a randomly generated anonymous identifier.
• Level scores – number of moves used to complete each puzzle.
• ELO / Rank – cumulative ranking score for the global leaderboard.
• Country – chosen by you from a list, used only for country leaderboards.
• Achievements – which in-game badges you have unlocked.
• Messages – any text you post on the public message board.
• Friends and blocked players (optional) – User IDs and usernames of players you add or block.
• Match data – results, opponent User ID, and move sequences for online matches.
• Play session times – start and end of sessions, retained for up to 30 days.

Data storage and security

All data is stored on a private server located in the European Union. Data is transferred over HTTPS. Scores, friends, blocks, and messages are kept in JSON and SQLite databases.

Third-party services

• Google Play – distributes the game. Google may collect device and transaction information as described in their privacy policy.
• Firebase Cloud Messaging (Google) – used only for push notifications. Firebase generates a registration token; this is handled by Google and is not linked to your username or game data. You may disable notifications in your device settings.

No advertising SDKs, analytics platforms, or social login providers are integrated into the game.

Children's privacy

TankPuzzle is rated Everyone. The game does not knowingly collect personal information from children under 13. If you are a parent and believe your child has provided data, contact us and we will delete it promptly.

Your rights and data deletion

You may request access to, correction of, or deletion of your data at any time. To exercise these rights, send an email with your username and User ID (both shown in the game's settings screen):

You may ask us to delete your friend list, messages, scores, or all data linked to your User ID. Requests are processed within 14 days.

Changes to this policy

We may update this policy from time to time. The "Last updated" date at the top of this page will reflect any changes. Continued use of the game after changes are posted constitutes acceptance of the updated policy.

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