Cookie Policy
Last updated: August 12, 2026
What are cookies?
Cookies and similar technologies are small files or stored values that help websites remember preferences and keep core features working.
How Sudoku Guru uses storage
On the web app, we use essential browser storage (such as localStorage) to remember your game progress, settings, language, and cookie preferences. We do not currently use advertising cookies or third-party ad networks such as Google AdSense or Google AdMob.
Essential storage
Essential storage is required for core gameplay, including saving Sudoku progress and preferences. It cannot be disabled if you want to use Sudoku Guru normally on the web.
Optional web push
If you opt in to web push reminders, your browser may store push-related data and we may keep a push subscription endpoint so we can send the reminders you requested. You can turn this off in Settings or in your browser notification controls.
Managing preferences
You can update cookie choices on our Cookie Preferences page and clear local Sudoku data from Settings.
Contact
Questions about cookies? Email privacy@sudokuguru.app.