CoA Apps

Privacy Policy for Ultimate Tic Tac Toe

Last Updated: July 22, 2026

Ultimate Tic Tac Toe ("the game") is a browser game developed by Carrie on Accessibility. Like Pipe Game, it uses a backend service — Google's Firebase platform — to keep your win/loss/tie record and settings synced between visits, and to run its online multiplayer matches.

Summary

Ultimate Tic Tac Toe automatically creates an anonymous "guest" account the first time you play and saves your stats and settings to a Firebase cloud database under that account, with no sign-in required. If you choose to sign in with Google instead, that data syncs to your Google-linked account so it follows you across devices. If you use Online Multiplayer, the current board, both players' display names, and basic room/lobby state are also stored in Firebase for as long as that match is open. There is no analytics tracking in this game.

Accounts and Sign-In

When you first open the game, it silently signs you in as an anonymous Firebase user — no prompt, no information collected beyond a randomly generated account ID. You can instead press Login in the header to sign in with a Google account via Firebase Authentication, which shares basic profile information (such as your Google account ID and display name) with Firebase in order to create that sign-in. The game itself only uses your display name to show a "Cloud Sync: [name]" status message; it does not otherwise use, display, or store anything else from your Google profile. Signing in with Google links that Google account to your existing guest account, so any stats or settings you've already built up as a guest carry over rather than starting from zero.

What Is Stored, and Where

For whichever account is active (anonymous guest or Google), the game saves the following to a Cloud Firestore database (Google's cloud infrastructure, not a server we run ourselves):

Your browser also keeps some sign-in state locally (via mechanisms Firebase manages internally, such as IndexedDB) so you stay signed in to your guest or Google account between visits without having to sign in again each time.

Online Multiplayer

If you create or join an Online Multiplayer match, the game writes a room document to a shared Firestore collection containing: the live board state, whose turn it is, both players' display names, a room code, whether the room is public or private, and a spectator count. A Public Match is additionally listed for any visitor browsing the Settings panel to see and join; a Private Code match is not listed, but — like any online match — is still readable by anyone who has (or guesses) its 4-digit code. Rooms that sit inactive for 10 minutes are automatically closed and deleted. Anyone who joins a match as a player or spectator can see the display name you've chosen.

What We Don't Do

Your Control Over Your Data

You can play entirely as a guest, use a made-up display name, and never provide any personal information. Clearing your browser's site data for this page will sign you out and remove your local sign-in state (a new anonymous guest account will be created next time you play). To remove stats stored in Firebase for a Google-linked account, or to ask about deleting an anonymous guest account's data, contact us using the address below.

Children's Privacy

Ultimate Tic Tac Toe does not knowingly collect personal information from children beyond the anonymous, randomly generated account ID needed to save progress and the display name you choose to enter, and Google sign-in is entirely optional.

Changes to This Policy

If this policy changes, the updated version will be posted here with a new "Last Updated" date.

Contact

Questions about this policy or the game can be sent to email@carrieonaccessibility.com.