Privacy

Peak Sudoku is built to stay out of your way: There are no accounts, no logins, and no advertising or tracking cookies. Progress, timers, and preferences are saved only in your own browser and never leave your device. To keep the site running we use privacy-friendly, self-hosted analytics software that counts anonymous usage without cookies and without building any profile of you, and our servers briefly log IP addresses for the sole purpose of rate-limiting abuse and keeping the website available to everyone. If you write through the contact form, whatever you choose to put in it is received (such as your message and any address you give) and it is only used to respond to you.

Because almost nothing stored is tied to you personally, there's very little to manage, but you still have the right to access, correct, or delete any personal data held, and to lodge a complaint with your local data protection authority. The quickest way to erase your own gameplay data is to clear your browser storage. If you have any questions or requests, just reach out through the contact form.