Get help
Questions, bug reports or feedback?
Include your iPhone or iPad model, iOS version and the steps that caused the issue.
If Full Version remains locked, open Settings and tap Restore purchase while signed in to the Apple Account that bought it.
How to play
- Fill every row, column and 3-by-3 box with the digits 1 through 9, without repeats.
- Select an empty cell and tap a number to enter it.
- Turn on Notes to record possible digits without committing an answer.
- Ask for a Hint to reveal a logical next step and the reasoning behind it.
- Open Techniques to study worked examples and practise eliminations.
Privacy policy
Effective 5 September 2026
Sudoku is an offline logic game. It does not create user accounts, display advertising, track users or transmit personal information to the developer.
Purchases
The optional Full Version purchase is processed by Apple. Sudoku checks the signed StoreKit entitlement on the device to unlock purchased features. The developer does not receive payment details or operate a purchase server.
Data collection
Sudoku does not collect analytics, diagnostics, identifiers, location, contacts, photos, gameplay data or advertising information. It contains no third-party SDKs.
Local game data
Preferences, the current puzzle, notes, local statistics, streaks and technique progress are stored only on your device using Apple's local storage APIs. Statistics can be reset inside the app. Deleting the app removes its local data unless iOS later restores that data from a device backup.
Device permissions
Sudoku does not request access to location, contacts, photos, camera, microphone, Bluetooth, advertising identifiers or tracking.
Children
Because Sudoku does not collect personal information, it does not knowingly collect personal information from children or other players.
Changes
If a future version adds an online service or changes how data is handled, this policy and the App Store privacy disclosure will be updated before that version is released.