Privacy Policy — Overturn

Effective date: 20 October 2026

Overturn ("the app") is a Reversi board game for Android published by CodeOn, s.r.o. This policy describes what data the app handles. The short version: gameplay data stays on your device; optional, consent-gated analytics and crash reporting help us understand how the app is used and fix bugs, and never run unless you allow them.

Data collection

The app does not sell or share personal data, contains no advertising, and requires no account or sign-in. It does not request access to your contacts, location, camera, microphone, files, or any other sensitive device capability. Gameplay works entirely offline. The only thing that can leave your device is the optional analytics and crash data described below, and only after you explicitly allow it.

Analytics and crash reporting

On first launch, the app asks whether you'll allow usage analytics and crash reporting (Firebase Analytics/Google Analytics and Firebase Crashlytics). Both start switched off; nothing is collected before you choose, and you can change your answer at any time from Settings.

If you allow it, the app sends Google:

• App usage events (such as which screens you open, games started or finished, and which board size you play), together with basic device/app info (device model, OS version, app version, coarse locale)
• Crash and error reports, including a stack trace of what the app was doing at the time, to help us find and fix bugs

This data is tied to an app-instance identifier managed by Google, not to your name, email, or any account. We don't use it for advertising, and we don't sell or share it beyond what Google's own privacy policy covers for operating these services. If you decline, or later turn it off in Settings, no further data is sent (a report already in flight before you turn Crashlytics off may still complete, per Firebase's own behavior).

Data stored on your device

The app stores a small amount of gameplay data locally on your device:

• Game statistics (games played, games won, current win streak)
• A history of your games — the moves of each match — so you can review and replay them in the app
• Your preferences (such as sound and haptics on/off)

This data is never transmitted to us or anyone else (Android's own backup may copy it into your Google account, see below), and is not used for any purpose other than the features above. You can clear your match history and reset your statistics at any time from the app's Settings. Uninstalling the app deletes it from the device; a copy in your Google account backup stays until you remove that backup (see Deleting your data).

Deleting your data

Overturn has no accounts, so there is nothing to delete on a server except the optional analytics and crash data described above.

• Gameplay data (statistics, match history, preferences) is stored on your device. If Android backup is on, Android may also copy it into your own Google account backup; we never receive it. Delete it any time in Settings → Clear match history / Reset statistics (your next backup then replaces the backed-up copy), or uninstall the app and remove its backup in your device's Google backup settings.
• Analytics and crash data (only if you allowed it): turn off Usage analytics in Settings to stop further collection, then email reversi@codeon.sk with the subject "Overturn data deletion". Because this data is not tied to your name or email, include the approximate date range you used the app; we delete the matching analytics and crash records within 30 days and confirm by reply. Analytics data is otherwise kept for at most 14 months and crash reports for at most 90 days, after which Google deletes them automatically.

Children

The app is suitable for all ages. It does not knowingly collect data from children, does not target advertising at anyone, and the optional analytics described above requires an explicit, deliberate choice on the app's first-launch screen.

Changes to this policy

If a future version of the app changes how data is handled, this page will be updated and the effective date revised before that version is released.

Contact

Questions about this policy: reversi@codeon.sk