Privacy policy
Updated November 8, 2026
What we store
- Your Google account ID, email address and name, if you sign in.
- Your tutoring conversation, skill map and submitted queries, so you can resume.
- Daily usage counts, and a hashed form of your IP address to enforce free limits.
- Your Stripe customer ID and subscription status, if you subscribe. Card details go to Stripe and never reach us.
Who receives it
- Z.ai receives each message and recent conversation history to generate the tutor's replies. Don't put personal or confidential information in your answers.
- Google handles sign-in.
- Stripe handles payments.
- Google Fonts serves this site's typefaces, which exposes your IP address to Google when a page loads.
We don't sell your data and there are no advertising trackers on this site.
Cookies
One signed session cookie keeps you signed in or holds your anonymous session, and a short-lived one protects Google sign-in.
Deleting your data
"Start over" in the tutor erases your conversation and skill map. To delete your account entirely, send a request through the contact form from your account's email address.