Legal
Cookie Policy
Last updated 19 August 2026
This page lists everything ChessScribe stores on your device. Most of it is not technically a cookie: the app keeps your session and settings in local storage, which behaves similarly and deserves the same disclosure.
We use no advertising cookies, no cross-site trackers, and no third-party analytics that follow you around the web.
1. What we store
| Name | Type | Purpose | Lifetime |
|---|---|---|---|
| Supabase session (sb-…-auth-token) | Local storage — strictly necessary | Keeps you signed in and lets the app prove who you are. Clearing it signs you out. | Until you sign out or clear storage |
| chessscribe-settings | Local storage — functional | Your sound and vibration preferences | Until cleared |
| board-appearance | Local storage — functional | Board colours, piece style and coordinate display | Until cleared |
| CapacitorStorage.chessscribe-settings | Mobile app storage — functional | The same preferences, kept durably so the app remembers them between launches | Until cleared or the app is removed |
| __cf_bm | Cookie — strictly necessary | Set by Cloudflare, which fronts our hosting, to tell automated traffic from real visitors | About 30 minutes |
Nothing in this list profiles you, and none of it is shared with advertisers. The strictly necessary items cannot be switched off without breaking sign-in or leaving the service undefended against bots, so we do not ask for consent for those.
2. What we do not use
- No advertising or retargeting cookies.
- No cross-site tracking or data brokers.
- No social media pixels.
- No third-party analytics suite that follows you between sites.
We do receive crash and error reports from the app, which include technical context about the failure rather than a record of your browsing.
3. How to control it
- Every browser can clear cookies and site data, usually under Privacy or History. Clearing ChessScribe's data signs you out and resets your board and sound preferences.
- Blocking all cookies and local storage for this site will prevent sign-in from working at all, because there is nowhere to keep your session.
- In the mobile apps, deleting the app removes everything it stored; you can also reset preferences in the app itself.
- The sound and vibration switches under Board style change what is stored, not just what plays.
We honour Global Privacy Control and Do Not Track signals in the sense that matters here: we do not do the tracking they ask us to stop.
4. Changes
If we add anything that stores data on your device, this page changes with it and the date at the top updates. Questions: privacy@chessscribe.ai.