Last updated: August 27, 2026 · Applies to the XO Duel mobile app.
The short version
XO Duel does not collect, sell, or share your personal data. There are no ads, no analytics trackers, and no account registration.
Data stored on your device
- Your game statistics (wins, losses, ties, medals), your chosen display name, and your purchase status are stored locally on your device only.
Online multiplayer
- When you play online, the current board state, the room code, and the display name you chose are temporarily stored on our game server (Google Firebase) so the two players can share a match.
- This data is not linked to your identity and rooms are deleted when a game ends or is abandoned.
Purchases
The one-time unlock purchase is processed entirely by Google Play or the Apple App Store. We never see or store your payment details.
Children
XO Duel is suitable for all ages and collects no personal information from anyone, including children.
Contact
Questions? Email fadinos@gmail.com.