Sudooku — Privacy Policy

Last updated: [fill in the release date before you publish]

Sudooku collects nothing. It sends nothing. It does not use the network.

Data stored on your device

Sudooku keeps the following information in its private storage, local to your Android device:

• Your in-progress games (up to one per difficulty, plus the current daily).
• Your completed-game history (time, mistakes, hints used per win).
• Your failed-game history (for per-difficulty streak tracking).
• Your daily-challenge results by date (for the calendar and streaks).
• Your settings: theme, palette, gameplay rules, visual aids, sound, haptics, and whether you've seen the tutorial.
• Which local achievements you've unlocked.

None of this data leaves your device. There is no user account, sign-in, cloud save, or sync mechanism inside the app.

Permissions

Sudooku declares no Android runtime permissions. The manifest contains no INTERNET, ACCESS_NETWORK_STATE, READ_EXTERNAL_STORAGE, READ_CONTACTS, or any other permissions. The app has no ability to reach the network, read your files outside its own sandbox, access any sensor, or know anything about your identity.

Third parties

There are none. Sudooku has no ads, no analytics, no crash reporting, no attribution SDKs, and no other third-party code that communicates off the device.

Android system backups

Android may back up Sudooku's local data if you have "Back up to Google Drive" enabled on your phone. This is an OS-level feature governed by Google's terms, not by this policy. If you disable that setting, or install on a device that doesn't sync backups, nothing about Sudooku leaves your device.

Children's privacy

Sudooku is safe for children (including the Kids mode at 4×4). Because it collects and transmits no data whatsoever, it complies with COPPA and the Google Play Families Policy by design.

Changes to this policy

If the policy ever changes, this page will be updated with a new "Last updated" date. Because the app has no network access, there is no in-app notification mechanism — check back here if you care about the history.

Contact

[Fill in a support email or URL before you publish. Play Console requires a publicly reachable developer contact.]