BUILT FOR IPAD
Stop switching apps. Stop waiting for office hours. Get real-time help the moment you need it.
Now in beta. Free to use.
THE PROBLEM
Every night, millions of students get stuck on practice problems with no one to help. They bounce between apps, lose focus, and give up before they actually learn.

You're juggling a notes app, a PDF reader, and ChatGPT. Every context switch breaks your focus.

Office hours are closed. Chatbots make you stop and type. By the time you get help, you've lost momentum.

You grind through problem sets for hours with no clear picture of what you've actually mastered.
FEATURES
We crammed notes, tutoring, and analytics into one app so you don’t have to cram alone at 2 AM.
Not a chatbot. Reef watches your handwriting, listens to you think out loud, and jumps in when you're about to go off the rails. It catches mistakes the moment you make them, asks follow-up questions to make sure you actually get it, and nudges you toward the answer without just handing it over. Like office hours, except it's 3 AM and you're in your pajamas.
Yes, even yours. Write with Apple Pencil and Reef transcribes it instantly. Math, chemistry, whatever.
Choose from different AI tutors, each with their own teaching style and voice. Take the quiz to find your match. It's like a personality test, but useful.
See exactly what you know and what you're pretending to know. Track study time, mastery by topic, and streaks. Every question you solve gets graded automatically, so you get real data on where you're strong and where you need to lock in. Watch your progress across every course, set study goals, and finally have proof that you did, in fact, study. It's like Spotify Wrapped but for your GPA.
Upload a PDF and Reef reformats the whole thing — questions, figures, equations, all of it. Each question gets its own page with plenty of room to solve it. Answer keys are generated automatically so the tutor can check your work in real time. No more printing, no more squinting at blurry scans. It's 2026.
Study more, unlock sea creatures, grow your reef. It's basically an aquarium you earn by doing homework.
TESTIMONIALS
They came for the free beta. They stayed for the tutor.
BUILT FOR STEM
From calculus to organic chemistry to circuit analysis, Reef understands the notation and concepts across your STEM courses.
HOW IT WORKS
No setup, no learning curve. Drop in your homework and start solving with an AI tutor by your side.
Drop in a homework PDF and Reef does the thing your printer never could — it autospaces every question so you actually have room to work. Answer keys get generated automatically and handed to your AI tutor, because unlike your group chat, it actually reads them.
Start solving with Apple Pencil and your tutor is right there, reading your handwriting and talking to you out loud. Wrong sign? It’ll catch it. Confused? It’ll ask you a question instead of just dumping the answer. It’s like having the one friend who actually understands the material — except this one doesn’t flake on you the night before finals.
Every question gets graded automatically, so you can stop lying to yourself about how ready you are. Your dashboard breaks it all down by topic — what you’ve actually mastered, what you’re guessing on, and what you should probably look at again before you walk into that exam room.
PRICING
Everything is free right now. When we launch, you’ll be able to choose a plan that fits how you study.
Full access to everything while we're in beta. No credit card needed.
Free
/ mo
INCLUDES:
Unlimited courses
Unlimited homeworks
Voice tutoring
Analytics dashboard
All features included
Pay for tutoring hours as you need them. Perfect for lighter course loads.
TBD
/ mo
INCLUDES:
Unlimited courses
Unlimited homeworks
Pay-per-hour tutoring
Analytics dashboard
All core features
No limits on tutoring. For students who never want to hit a wall.
TBD
/ mo
INCLUDES:
Unlimited courses
Unlimited homeworks
Unlimited tutoring
Advanced analytics
Priority support
FAQ
Everything you need to know before diving in.
NEWSLETTER
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