Legal
Last updated: 9 May 2026. We use the smallest possible set of cookies and no third-party tracking.
Cookies are small text files saved by your browser. They let a site remember things between page loads — like keeping you logged in or remembering your dark-mode preference.
| Name | Purpose | Duration | Type |
|---|---|---|---|
better-auth.session_token | Keeps you signed in. | 7 days, refreshed daily. | Strictly necessary |
theme | Remembers your light/dark/system preference. | 1 year | Functional |
onboarding-complete | Skips the onboarding flow once you've seen it. | 1 year | Functional |
Every browser lets you delete cookies and block them per site. Note that blocking the session cookie will sign you out and stop the app from working until you allow it again.
We also use the browser's localStorage to cache lesson progress for offline-ish experience. This is technically not a cookie but is treated similarly under most privacy laws. Clearing site data from your browser clears it.
See the privacy policy for the bigger picture, or contact us with specific questions.