Privacy policy.

At SUDOKUONLINE.AI, we value your privacy. Read below to understand how we manage game settings and state data.

1. Browser-Only Processing

SUDOKUONLINE.AI does not require accounts, sign-ups, or email profiles. The game logic, puzzle shufflers, note calculators, and solvers are executed locally inside your web browser. None of your active gameplay movements are sent to, processed by, or stored on external servers.

2. Local Storage Usage

We use browser Local Storage to remember your configuration options and playing achievements between visits:

Your theme setting (Light or Dark Mode).
Your completed daily challenge dates.
Your gameplay statistics (best times and win rates per difficulty).

This data remains entirely on your local machine and can be cleared at any time by resetting your browser history or clicking the "Reset Stats" button inside the Stats modal.

3. Third-Party Analytics and Links

We do not share any data with third-party advertisers or data brokers. Our website may contain links to external sites (such as github, astro documentation, etc.). Once you navigate away from our site, this privacy policy no longer applies.

4. Changes to This Policy

We may update our privacy rules occasionally to reflect changes in our local storage logic. All adjustments will be updated directly on this page.