Master anatomy in 60 seconds a day.
One bone. One streak. One minute. Test yourself with daily quizzes, tap-to-learn diagrams, and drawing challenges — powered by active recall, the only study method proven to actually stick.
👋 New here? No signup needed — your scores save locally and sync when you create an account.
From high school AP all the way to med school — pick your level and the app swaps prompts, depth, and a built-in glossary to match.
- 1🎯 Take the quiz
See what you know
- 2👆 Tap to learn
Fill the gaps in Study
- 3⚡ Drill timed
Lock it in with Practice
- 8
- regions
- 200+
- bones
- 5
- study modes
yo. quick one. 🦴
give me 60 seconds and i'll teach you a bone. promise it's painless.
— Ossie · tap me for more
Guess the bone
Longest, strongest bone in the body — supports up to 30× your weight.
Color-coded regions · the visual index
same colors used everywhere in the appThe whole skeleton, one tap away.
Multi-view labeled diagrams — color-coded by region. Tap any structure for the clinical deep dive: Latin name, landmarks, attachments, high-yield exam notes.
One minute a day. Zero textbook coma.
Lock in 206 bones the way your brain actually wants to learn — one daily streak at a time.
Active recall, not re-reading
Quizzes, labeling, and drawing — the study methods proven to beat highlighting and flashcard skimming.
Visual + clinical in one place
AI illustrations, multi-view diagrams, Latin names, landmarks, and high-yield clinical pearls — no tab juggling.
Streak-driven daily habit
Personal bone-per-day goals plus timezone-aware reminders so studying becomes routine, not a scramble.
Built for real life
Syncs across all your devices and lets you compete with friends to keep momentum high.
Chapter I · Bone trivia
Did you know? 🦴
Femur
Longest & strongest bone — can support 30× body weight.
Stapes
Smallest bone in the body — only ~3 mm long.
Babies
Born with ~270 bones; adults have 206 (they fuse!).
Marrow
Makes ~2 million red blood cells every single second.
Everything you need to master anatomy
Nine study tools, one streak. From your first tap to exam day — Ossie Learn covers the whole journey.
AI bone illustrations
Every bone gets a clean, textbook-style illustration generated on demand.
Tap-to-learn diagrams
Multi-view labeled skeletal diagrams — tap any structure for the full deep dive.
Quizzes & practice
Active-recall labeling, multiple choice, and mistake review that loops weak spots back in.
Drawing challenges
Sketch bones from memory and get instant AI critique on your accuracy.
Spaced-repetition flashcards
Surfaces what you're about to forget — right before you forget it.
Streaks & schedules
Daily bone goals with timezone-aware email reminders so you never break the chain.
Clinical pearls
Latin names, landmarks, attachments, and high-yield exam notes for every bone.
Friends & challenges
Compare progress, send challenges, and study together.
Bones aren't just bones ✨
Five jobs your skeleton handles every second of every day.
Protect
Skull guards the brain; ribs shield heart & lungs.
Support
The vertebral column holds you upright.
Move
Bones act as levers for every muscle pull.
Produce
Marrow makes red & white blood cells.
Store
99% of your body's calcium lives in bone.
Ready to make anatomy stick?
Start with a 60-second quiz. No signup. Your progress saves locally.
Free forever for the basics. Ossie Learn Pro is $4.99/month (or $39.99/year) and unlocks all 206 bones — first 7 days free.