Privacy Policy
Short version: Sudoku collects nothing about you. It has no accounts, no advertising, and no analytics, and it never sends any data off your device — because it makes no network requests at all.
Information we collect
None. We do not collect, store on our servers, transmit, sell, or share any personal information. We operate no servers that Sudoku communicates with, and the game has no sign-in, no user profiles, and no messaging.
Information stored on your device
Sudoku saves two small settings locally so the game remembers them between sessions. Neither is personal information, and neither ever leaves your device:
| Stored value | What it is |
|---|---|
best |
Your fastest completed puzzle, as a number of seconds. |
muted |
Whether you turned sound and vibration off, as true or false. |
These live in the app's own private storage. Uninstalling Sudoku deletes them permanently. There is no cloud backup or restore of this data by us. Puzzles themselves are generated on your device as you play and are not stored or sent anywhere.
Permissions
| Permission | Why |
|---|---|
VIBRATE |
Haptic feedback when you place a digit, when one clashes with another, and when you finish a grid. You can turn this off with the sound toggle in the game. It grants no access to any information. |
INTERNET |
Declared by the app framework Sudoku is built with, but the game makes no network requests. Nothing is uploaded or downloaded while you play. |
Sudoku requests no runtime permissions. It does not access your camera, microphone, location, contacts, photos, files, or device identifiers.
Third parties
Sudoku contains no advertising networks, no analytics or crash-reporting services, and no social media integrations. No third-party service receives information about you through this game.
If you installed Sudoku from Google Play, note that Google collects some information about app installs and purchases under its own policies, independently of this game. See Google's Privacy Policy.
Children
Sudoku is suitable for all ages and is not directed at any particular age group. Because the game collects no personal information from anyone, it collects none from children either. We do not knowingly gather data from users of any age, including children under 13.
Your rights
Privacy laws such as the GDPR and CCPA give you rights to access, correct, or delete personal data a company holds about you. We hold no personal data about you, so there is nothing for us to retrieve or erase. To remove the two settings stored on your device, clear the app's storage or uninstall the game.
Changes to this policy
If a future version of Sudoku changes what it stores or accesses, this policy will be updated before that version is released, and the "last updated" date above will change.
Contact
Questions about this policy or about privacy in Sudoku: games-world-contact@googlegroups.com