Privacy policy.

Who to contact

For questions about ChainGlow or your data, contact the ChainGlow developer at chainglow.thegame@gmail.com.

Your saved game

Your current board, best score, settings, game history, achievements and level progress are saved locally. Level progress does not automatically sync between devices. Detailed local histories are not uploaded to analytics.

We do not sell your personal information or use it for advertising tracking.

Optional usage analytics

Versions with Firebase Analytics ask for your permission before enabling analytics. You can decline and still play, or change your choice in Settings. With your consent, Google Firebase Analytics receives an app-instance identifier, app and device information, approximate location inferred from network information, and usage events such as sessions, tutorial progress, game starts and completions, scores, chains cleared, features used, achievements and level progress.

We use these events to understand which features players use and improve the game. We do not send your leaderboard name, email address, leaderboard account identifier or board contents to Firebase Analytics. Advertising features, advertising identifiers and IDFV collection are disabled. Turning analytics off stops future collection and resets the local analytics identifier; it does not automatically delete previously received data. Google processes analytics data under its privacy policy and may process it outside your country.

The optional leaderboard

When you join, we create an anonymous account identifier and store your chosen display name, best submitted score and the time that score was achieved. Your name, score and rank are visible to other players. You do not need to provide an email address or password to join; avoid using personal information in your public name.

Authentication tokens are stored on your device to identify your leaderboard account. The iOS and web versions may have separate identities; this is not an account that automatically follows you across devices.

We use this information to identify your entry, update your best score and calculate rankings. New versions also send the initial game seed and placement/clear actions for score validation. The server reconstructs the game and stores a private checkpoint linked to your leaderboard account, including the board, pieces and computed score. These checkpoints are not public and are removed when you delete your leaderboard account.

Services that help run the game

Supabase provides authentication and the leaderboard database. Netlify hosts the website. Requests to these services include technical information such as an IP address and may be recorded in operational or security logs under their service policies. They may process data outside your country.

If you contact support, we receive your email address and the information you send through our Gmail mailbox. Send only details needed to resolve the issue. If you test through TestFlight, Apple may provide testing feedback and crash diagnostics under its own privacy terms.

Retention and deletion

Your leaderboard entry remains until you delete the account or request its removal. In the iOS or Android app, open Settings → Leaderboard account → Delete leaderboard account. This removes the account and its associated score from the active database. Your local game and stats remain, and joining again requires your choice.

For a web leaderboard entry, or if you cannot access your account, email us for help. We may need to verify that the entry belongs to you. Clearing browser storage or uninstalling the app does not itself delete server records.

Local data remains until it is cleared, removed with the app or replaced by the game’s history limits. Service logs and backups may remain according to the providers’ retention policies; deleting an account does not instantly erase every backup. Support correspondence is kept as needed to handle the request and related follow-up.

Your choices and rights

You can play without joining the leaderboard. Depending on your location, you may have rights to access, correct, delete or obtain a copy of your personal data, restrict or object to its use, and complain to your local data protection authority. Contact us to make a request.

Where applicable, we process leaderboard data to provide the feature you request, and support and security information for our legitimate interests in operating and protecting the service.

Changes to this policy

We will update this page when the game’s data practices change and revise the date above.