Free Sudoku

Free Sudoku privacy policy

Application information

Application: Free Sudoku (Android, com.sudoku.app)
Publisher: Free Sudoku
Contact: contact@freesudoku.app
Last updated: 13 November 2026
App version: 1.0.0 and later

1. In short

Free Sudoku is a free sudoku game, funded by advertising. Your puzzles, statistics and settings are stored only on your phone: the game creates no account and sends us nothing. Our advertising partners collect the technical data described below to show ads. In the European Economic Area, the United Kingdom and Switzerland, personalised advertising is shown only with your consent.

2. Game data stays on your phone

The game itself stores the following only on your device: your current puzzles and progress; your statistics (games played, wins, times and best scores); your daily sudoku challenge calendar; and your settings (language, theme, notes and hint options). This data never leaves your phone. Uninstalling the app, or clearing its data in Android settings, deletes all of it. See our data deletion page.

3. Advertising partners and the data they receive

The game shows ads through advertising SDKs (software development kits). Each partner processes data under its own privacy policy. In broad terms, these partners may process: your advertising ID; your IP address and the approximate location derived from it; device and network information (model, operating system, screen, carrier); app interactions (when the app is used and when ads are shown); crash and diagnostics data; and signals about other apps installed on your device, which ad SDKs collect for fraud detection and measurement.

4. Consent and personalised ads

If you are in the European Economic Area, the United Kingdom or Switzerland, the app asks for your consent before showing personalised ads. Without consent, you see either non-personalised ads or no ads, depending on each partner's options. You can change or withdraw your choice at any time in the app. You can also reset or delete your advertising ID in your Android settings. See the data deletion page for the exact steps.

5. Children

The game is a general-audience puzzle game and is not directed at children under 13. We do not knowingly collect personal data from children. If you believe a child has interacted with our ads in a way that concerns you, please write to us and we will help.

6. Permissions and offline play

The game requests only standard permissions. Internet access is used to load ads and the daily challenge. The puzzles themselves are generated on your phone, and the game plays fully offline. The app requests no permission for contacts, photos, files or precise location, and uses none of them.

7. Your choices

You can choose whether ads are personalised, reset or delete your advertising ID, and delete all game data by uninstalling the app. To have an advertising partner delete information it holds about you, contact that partner using the privacy policy links above. You can also write to us, and we will point you to the right form.

8. Changes to this policy

If a future version of the app changes how it uses data, we will update this page before that version is released and change the date shown above.

9. Contact

For any question about this policy or the app, write to contact@freesudoku.app. You can also read our terms of use.