Privacy Policy

What Gueslo is

Gueslo is a free browser game where you guess the Elo rating of real chess games. Chess game data is sourced from Lichess open-source databases and used solely for gameplay purposes.

Account & data

Creating an account is optional. If you sign up, we store your email address, chosen username, and game results (scores, guesses). This data is used only to display your stats and leaderboard position. We do not sell or share your personal data with third parties.

Google sign-in

You may sign in with Google. When you do, we receive your email address from Google solely to create and identify your account. We do not access your Google contacts, Drive, or any other Google data.

Cookies

We use a session cookie to keep you logged in, and a short-lived cookie to remember your daily game result across page reloads. No third-party tracking cookies are used.

Analytics

We use Vercel Analytics to collect anonymous, aggregated page-view data (no personal identifiers). This helps us understand how the app is used.

Deleting your account

You can delete your account at any time from your profile page. This permanently removes your email and game history from our database.

Contact

Questions? Reach out at hello@gueslo.app.