Timeguessr Club privacy policy

Timeguessr Club is a friends’ scoreboard and companion browser extension maintained by AlbertCintas. It is independent of Timeguessr.

Information used

• When you sign in, the extension sends your tracker username, represented as an internal account identifier, and password to our Supabase authentication service over HTTPS. The extension does not retain your password. It stores session and refresh tokens locally to keep you signed in.
• After you sign in and enable automatic imports, the extension reads completed Timeguessr games: game type, challenge number, total score, picture scores, year errors, distances, your guessed year and map location for each picture, picture or challenge identifiers, timer settings and the date captured. It does not read your Timeguessr password or account cookies.
• Game results and an external game fingerprint are sent to the tracker’s Supabase database. Picture identifiers are used locally to generate fingerprints for matching non-daily games; the extension does not upload the original photographs or your physical location. Guessed years and locations appear in the tracker only to signed-in members who played the same game.
• The extension requests public Timeguessr challenge metadata to verify daily dates. While auto-import is enabled, it also reads public archive and replay data to automatically fill the original photograph answers for games already recorded by the club. These requests omit Timeguessr cookies and do not submit guesses or scores. When you press “Check for updates”, it asks the browser store and reads the latest version number from this website; neither request sends any personal data. It does not collect activity on unrelated websites or use advertising or analytics trackers.

Public scoreboard

Tracker usernames, display names, avatars, submitted scores and picture statistics, correct photograph years, coordinates, countries and descriptions are publicly visible on the scoreboard. Signing in and enabling auto-import means completed games can be added to this public record. The extension does not upload profile photos; avatars are managed on the website.

Storage and services

Authentication is kept in storage restricted to trusted extension contexts on Chrome and Edge, or the extension’s own IndexedDB database on Firefox. Pending imports and up to 20 recent import records are stored locally. Pending games remain attached to the account that captured them.

The website is hosted on GitHub Pages and authentication, scores and avatars are hosted on Supabase. Requests expose ordinary connection information to those services. See GitHub’s privacy statement and Supabase’s privacy policy.

Control and deletion

Pause automatic imports or sign out using the extension popup. Sign-out removes its saved authentication session but keeps pending imports for that account. Dismiss pending imports in the popup; uninstalling removes the extension’s local data. Uploaded scores can be edited or deleted on the tracker by their owner or a club administrator. Uninstalling does not delete uploaded scores.

For account deletion or other privacy requests, contact the club administrator privately or use the project’s issue tracker to request a private contact method. Do not post passwords, session tokens or private account information in a public issue.

Purpose and sharing

Photograph coordinates, guessed coordinates and countries describe places in the game, not the player’s physical location. Information is used to authenticate players, match games, upload scores, retry pending imports and show rankings. We do not sell information, use it for advertising, or share it beyond the public scoreboard and the services needed to operate the tracker.