- your name, email, and password when you sign up
- your uploaded materials (syllabi, notes, slides) — encrypted at rest in supabase storage
- your quiz answers, study preferences, and character name
- your assessment scores and study activity (to power the preparedness score and streaks)
- basic analytics: which pages you visit and features you use (helps hippo improve)
- your grades or GPA from any school system (unless you enter them yourself)
- your location or contacts
- anything from your device outside hippo
- to build your personalized study system (plans, guides, exams)
- to send you nudges through the coach system (opt-out anytime)
- to improve hippo over time (aggregate patterns, never individual data)
- YOU always see all your data
- anthropic (the makers of claude AI) processes your uploads to generate outputs — they don't train on your data or store it
- google (calendar integration only) — only events hippo created, only if you connected calendar
- no one else. we don't sell your data. we don't share with advertisers. we don't have advertisers.
- see everything hippo has on you (email kenna@hippo.study — we'll send you a data export)
- delete your account and all data anytime (settings → account → delete)
- correct anything that's wrong
- take your data with you if you leave
hippo is for college students. we don't knowingly collect data from anyone under 13.
if you're under 18 you need a parent's ok to use hippo.
- if we change this policy, we'll email you and show a banner in the app
- effective date shown at the bottom