Privacy

What is stored

Your practice progress, your theme choice and your chart display preferences are saved in your browser’s local storage. That data stays on your device, is never transmitted to a server, and is not readable by anyone else.

Clearing your browser data clears it. Using a different device or browser starts fresh.

What is not collected

No account is required and none is offered. No email address is requested. No advertising or cross-site tracking scripts are loaded.

Hosting

The site is served as static files. The host records standard web server request logs, which typically include IP address, user agent and requested URL, and retains them for a limited period.

Changes

Material changes to this page will be reflected in the date below.