Hipocampus

Memory built for high-stakes exams

Hipocampus is a premium spaced-repetition app for USMLE, NCLEX, Bar, CFA, CPA, ANZCA Primary, Royal College and AMC candidates. FSRS-5 algorithm. Native iPhone, iPad, Apple Watch. No clutter, no ads.

Available on the App Store

The latest memory model

Hipocampus runs FSRS-5 — the current state-of-the-art free spaced-repetition algorithm by the Open Spaced Repetition team. The scheduler models difficulty, stability and retrievability for every card and predicts your forgetting curve from day one.

An on-device coach

When you fail a card, Hipocampus uses Apple's on-device Foundation Models to explain why you likely got it wrong — based on which adjacent cards you've struggled with that week. Private, fast, and free of cloud cost.

30 seconds on your wrist

Open Hipocampus on Apple Watch for a 5-card session while you wait for the train. Haptic feedback for correct and incorrect. A complication on your watch face shows the day's due count.

Free recall, the way memory actually works

Type, draw with Apple Pencil, or speak your answer aloud. Vision recognises your handwriting; the on-device LLM grades "close enough." Recognition cards are nice; recall cards are how you pass.

Import your existing decks

Drop in an Anki .apkg from iCloud Drive. Hipocampus parses every card and template natively and reschedules them on FSRS-5 from day one.

Pricing

Free: bring your own decks (no FSRS scheduling).
Pro: $19.99/month — FSRS scheduling, on-device explainer, free-recall grading, Watch, unlimited cloud sync.
Lifetime: $199.99 one-time — every Pro feature, forever.