Privacy
Study Lab · last updated 15 November 2026 (2)
Study Lab is a free study environment made by a student for students. It works without an account: then your progress stays in your own browser, and only anonymous usage counts are sent (see below).
When you sign in with Google
- What we receive from Google: your name, email address and profile picture. Nothing else: no access to your Gmail, Drive, calendar or contacts.
- What we store: your account (via Supabase) and your study progress: which lessons and questions you did, your scores, plan and settings. This lets you continue on another device.
- Where: in a Supabase database in Frankfurt (EU). The website itself is served by Cloudflare.
- Who can see your progress: only you, through the site. The database blocks every user from reading anyone else's rows. For usage data, see below.
- Never: no ads, no tracking cookies, no selling or sharing of data.
How the Study Lab is used (to improve it)
To improve the Study Lab, Ravik looks at how it is used: which pages, lessons and tabs people open (the route through the Study Lab), whether they use a phone or a computer, active minutes, answers to practice questions, mock scores, and the feedback people give.
- Signed in: this is kept with your account, so it is one record per student on all your devices. After you sign in, the Study Lab asks once whether Ravik may see your name next to it.
- Yes: Ravik sees your name and can ask you what works for you.
- No or not answered: your name is hidden; Ravik sees “Student #…” instead. Your name and email are not stored with it.
- Not signed in: counted under a random number for your browser, not linked to any account.
- Only Ravik sees this, never teachers or classmates, and it is never used for grades. Teachers could only ever see class totals for groups of 3 or more, without names. You can change your answer any time under Settings → Your data, and ask Ravik to delete everything.
Ask Claude
The Claude buttons on the website do not send anything to Claude themselves. They put your question, the lesson text from the page and your study preferences in a message, copy it, and open Claude in your own account. What you then send is between you and Claude (Anthropic), under your own Claude account.
Removing your data
Sign out on a device to stop syncing there. To delete your account and all progress stored online, contact the maker through the support address shown on Google's sign-in screen; it is removed within 30 days. Progress in your own browser you can clear yourself in Settings or by clearing site data.