Support

Get help

Contact ihorkharchyshyn@gmail.com with the app version shown in Settings, your Android version and device model, and a short description of what happened. A screenshot is optional; remove personal information before sending it. Do not send passwords, full payment card details, purchase tokens or signing keys. The app does not automatically upload your saved games or attach logs to a support message.

Saved games and offline play

The app saves your game, notes, undo history and elapsed time on your device. To resume, open Home and choose Continue. Basic gameplay works offline and requires no account. There is no cloud sync or recovery copy held by the developer. Clearing app storage or uninstalling permanently removes local gameplay data. Keep your own screenshots of information you need before doing so.

Manage local data

Settings offers Reset statistics and Delete saved games. Reset statistics removes statistics, Daily completion records and achievements while keeping saved puzzles and completed records. Future play can create new statistics. Delete saved games removes unfinished games, not the completed archive or previous statistics. Theme Studio lets you delete individual custom themes when available. To remove the full local puzzle archive and preferences, clear Sudoku Worlds' storage in Android Settings or uninstall. See the privacy policy for exact effects and purchase-cache limitations.

Purchases and restore

Paid products are available only when offered by Google Play and supported by your installed build. If you previously purchased an eligible product, use Settings → Restore purchases while connected to Google Play with the account used for the purchase. Restoring does not restore puzzle progress. The developer does not receive your card details. Manage payments and refunds through Google Play support.

Report a problem

Describe the steps needed to reproduce the issue and whether it also happens after pausing and resuming. If a save error appears, keep the app installed and check free device storage before clearing data. Support cannot remotely inspect or reconstruct a local puzzle database. There is no app account to reset or delete.