Privacy Policy

1. What we collect

• Account info from our identity provider, Clerk: your name, email, and profile picture.
• Profile details you choose to provide: school, department, level, graduation year, goals, and study preferences.
• Content you create: notes, calendar events, quiz attempts and answers, uploaded documents, study room activity, and friendships.
• AI Tutor activity: your chat messages, any images or PDFs you upload to the tutor, and the tutor's replies.
• Usage data: token counts used to enforce the AI Tutor's rolling usage limit.

2. How we use it

We use this data to operate the features you use directly — your dashboard, notes, calendar, documents, practice questions, and study rooms — and to run the AI Tutor.

When you message the AI Tutor, your message text and any images or PDFs you attach (plus recent conversation history, so it has context) are sent to Anthropic's Claude API solely to generate a response. Anthropic's own terms govern how it handles that data on its side.

We may use other AI or machine-learning infrastructure providers for backend features such as practice-question generation. As of this policy's date, none of your individual chat messages or personal content are sent to those providers; we'll update this policy if that changes.

3. Where it's stored

Your account and content are stored in Convex (our database and file storage provider). Authentication and sessions are handled by Clerk. Depending on where these providers run their infrastructure, your data may be processed outside your home country.

4. Retention and deletion

We keep your data for as long as your account is active. You can permanently delete your account at any time from Settings → Account. That immediately and permanently deletes your profile, notes, calendar events, quiz history, documents (including uploaded files), study room data, friendships, and every AI Tutor thread, message, and attachment tied to your account.

5. Sharing

We don't sell your personal data. We share it only with the service providers named above (Clerk, Convex, Anthropic) as needed to run the Service, or when required by law.

6. Cookies

We use functional cookies from Clerk and Convex to keep you signed in. We don't currently use third-party advertising or analytics trackers.

7. Children's privacy

BrainDrill is intended for students old enough to manage their own account (13+) and isn't directed at young children. We don't knowingly collect personal data from children under 13.

8. Your choices

You can review and edit most of your data directly in the app, and delete your account at any time as described above. For anything else, email us (see below).

9. Changes to this policy

We may update this policy as the Service evolves. We'll update the date above when we do.

10. Contact

Questions about this policy or your data? Email hello@braindrillai.com. See also our Terms of Service.