COOKIE NOTICE
Cookie Notice
Effective 23 August 2026
What we use
The Site uses essential cookies to keep you signed in. Google Firebase may also use necessary browser storage to complete authentication securely. We keep reading preferences and a local copy of learning progress in your browser.
Why they are needed
These technologies keep your session active after a refresh, protect the sign-in process, remember reading preferences and let previously loaded content remain useful during a brief connection problem. The current version does not use advertising cookies or third-party targeted advertising trackers.
How to manage them
You can remove cookies and Site data through your browser settings. Doing so will sign you out and may remove the local progress copy. Learning data already synced to your account can be restored from the cloud after you sign in again.