Minimal data by design

Playing without signing in

You can play without signing in. In that case, in-progress puzzles and device stats are stored locally in your browser (localStorage).

• Progress and streaks stay on this device.
• Guest progress does not sync across devices or browsers.
• Clearing browser storage removes saved progress for this device.

Playing while signed in

Sign-in is optional and currently available via Google. Authentication is handled by Supabase Auth. This is not a full standalone account system; it is Google sign-in plus a lightweight profile and gameplay record stored in Supabase.

Signed-in users can set a username and optionally choose a favourite team.

Account-linked data stored for signed-in users includes:

• Google email address
• Username
• Favourite team
• Streaks
• Solve history
• Last-played timestamps
• Related gameplay stats

We use this data to:

• Save progress across devices.
• Show streaks and stats.
• Maintain account-linked gameplay history.

Usernames are not currently public to other players.

Third-party services

LeagueCipher relies on a small set of providers to run the site and sign-in flow:

• Google for optional sign-in.
• Supabase (Auth + database) for authentication and account-linked gameplay storage.
• Cloudflare Pages and Cloudflare Web Analytics for hosting, security, and aggregated usage metrics.

Your requests

To request correction or deletion of your account-linked data, email contact@leaguecipher.com. Requests are currently handled manually.

Deleting LeagueCipher data does not delete your Google account. Policy updates will be posted on this page.