Arru Studios · Last updated 1 October 2026
Ninewake: Sudoku is published by Arru Studios. Ninewake does not collect, transmit, sell, or share personal or sensitive user data. It has no account, advertising, analytics, tracking SDK, or backend service.
Your preferences, unfinished puzzles, daily streak, and play state are stored only in the app or browser’s local storage. This information does not leave your device and is not accessible to Arru Studios.
The optional music is bundled with the app and plays locally. The Android app works offline and does not send gameplay or device information to Arru Studios or any third party.
Local game data remains on your device until you clear the site data, clear the Android app’s storage, or uninstall the app. Those actions permanently remove the locally stored data. Because Ninewake has no account or server-side storage, Arru Studios holds no user record to retrieve or delete.
For privacy questions, contact support@arrustudios.com.