Cookie Policy

We use local browser storage for features such as theme preference, local revision progress, account/session state, synchronized study preferences and temporary legal-consent state during account creation.

Firebase Authentication may also use browser storage required to keep you signed in securely and complete authentication flows.

Google AdSense may use cookies, IP addresses and similar identifiers to serve, measure and protect advertising. The exact advertising choices available depend on your location, Google's consent systems and your browser/device settings.

Where required, the site uses Google AdSense Privacy & messaging to present the appropriate consent or opt-out message.

If Google's Privacy & messaging API is active for your region, use the button below to reopen the consent message and change your advertising choices.

You can also clear cookies/site data through your browser. Doing so can sign you out, reset local preferences and remove revision progress that has not yet synchronized to your account.

See the Privacy Policy for the broader explanation of personal-data handling.