Privacy Policy

Sudoku org.balusc.sudoku, published by BalusC.

Effective 18 August 2026.

Data this app collects

None. The app has no accounts, no analytics, no advertising and no crash reporting, and it sends nothing over the network. Nothing you do in the app is transmitted anywhere, and the developer receives no data about you or your device.

Data this app stores on your device

All of it stays in the app's private storage (SudokuPrefs), readable only by the app:

• the puzzle in progress, including your entries, notes, mistake count and elapsed time
• per-difficulty statistics: games won and lost, average and best times
• your settings: theme, sound, mistake limit, hint limit

Uninstalling the app deletes all of it.

Android backup

The app allows Android's own backup and device-transfer mechanism to include SudokuPrefs, so your statistics and settings survive a device change. That copy is handled entirely by Android and your Google account settings, under Google's privacy policy — the developer has no access to it. Turning off backup in your device settings stops it.

Permissions

The app requests no permissions.

Children

The app collects no data from anyone, children included, and contains no ads, purchases, social features or external links.

Contact

Questions about this policy: balusc@gmail.com