Privacy Policy

Last updated: July 11, 2026

Offline practice requires neither email nor sign-in. Optional online multiplayer uses the limited information described below. TwenT9 has no ads, analytics, behavioral tracking, or crash-reporting service.

Information and purpose

For email one-time-password sign-in, your email address passes transiently to Resend, our email delivery processor. We store only a one-way hash of it. We store your Alias, account and session identifiers, room participation, gameplay state, and finished-game history to provide online multiplayer and account history.

Hosting and sharing

Online multiplayer is hosted on Cloudflare. Data is encrypted in transit. We do not sell information or share it for advertising.

Deletion and retention

Delete immediately in the app beside Sign Out, or use our web deletion page. Deletion removes your identity, stored email hash, sessions, and your synced history. Your historical Alias remains in other players’ finished-game records. Cloudflare backup copies may persist until the provider’s normal backup rotation expires.

Children and stores

TwenT9 is offered through Google Play and Apple App Store. Children should use online account features only with parent or guardian permission.

Contact

Privacy questions: support@sociobot.net.