Privacy Policy

King of 20 — Last updated: May 2026

King of 20 is a multiplayer math board game. This policy explains what information we collect, how we use it, and your rights around it.

Information We Collect

Account information. When you create an account, we collect your username and optionally your email address. Email is only required if you want to use password recovery.

Game data. We store the moves, scores, and outcomes of games you play.

Cookies. We use cookies to keep you logged in across sessions. These cookies store your authentication tokens and username. No advertising or tracking cookies are used.

How We Use Your Information

Third-Party Services

Sentry (sentry.io) — We use Sentry to capture application errors. It may receive anonymized technical data such as browser type, device type, and error stack traces. It does not receive your password or authentication tokens.

Resend (resend.com) — We use Resend to deliver transactional emails (password resets). Your email address is only sent to Resend if you request a password reset.

Data Retention

Your account and game data are retained as long as your account is active. You can request deletion at any time by contacting us.

Children

King of 20 is not directed at children under 13. We do not knowingly collect personal information from children under 13.

Contact

Questions about this policy or requests to delete your data: ishmael@kingof20.com