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We built the study buddy we wished we’d had.
Prepful is a small team of educators, engineers and designers building one thing: an AI study buddy that makes Digital SAT and ACT prep something a 16-year-old will actually open on a Tuesday night. Not a textbook. Not a homework app. A buddy named Pax.
WHY WE EXIST
The boring stuff is what kills scores.
Every student we’ve ever talked to knows what they should do: take a diagnostic, find their weak spots, drill them, take a mock, repeat. The problem isn’t knowledge. The problem is showing up — consistently, daily, when AP Bio and the group chat and a part-time job are all louder.
Most prep tools are built like libraries: huge, well-organized, deeply useful if you have the discipline to walk in alone. Prepful is built like a friend who texts you at 4:30pm and says “hey, 20 minutes, I queued the easy stuff first.”
That friend is Pax — a small, stubbornly upbeat otter who lives in the app. The library is still in there: a full learning path with Study Guide → Flashcards → Practice Test for every topic, 20 Bluebook-style mocks, customizable Smart Drills, 900 SAT/ACT vocab words, an auto-filling Mistake Bank. But the front door is a buddy, not a syllabus.
MEET PAX
Pax is an otter. On purpose.
Otters are persistent, curious, and notoriously good at puzzles — they crack shells open with rocks they keep in special pockets. That’s the energy we wanted: clever, calm, and weirdly into the work.
Pax is the only AI on Prepful. Snap a question with your camera and Pax reads it. Ask anything by text. Get stuck at 11:47pm and Pax explains it like you’re tired, not like a textbook. Every explanation cites the actual question — Pax never invents practice items.
WHAT WE BELIEVE
Five things we won’t compromise on.
- Honest score projections. If your projected score is 1380, we’ll tell you 1380 — not “with our help you could hit 1500!”
- No dark patterns. No streaks that punish, no fake urgency, no growth-team-designed guilt. The streak is opt-out and Pax lets you bank rest days. Trial reminders never use “you’ll lose your progress.”
- No student data sold, ever. Not to universities, not to test prep competitors, not to ad networks. Period.
- The Free tier has to be real. Daily mission, full learning path, 900 vocab words, unlimited Pax chat — forever, no card. Not a “free trial” that’s a tour.
- Pax cites its sources. Every explanation links back to the question or topic guide it’s drawing from. Pax never invents practice items.
HOW WE MAKE MONEY
Free forever. Pro on a 7-day trial.
Free gets you the daily mission, full learning path, 900 vocab words, unlimited Pax chat, a daily Smart Drill, your last 30 days of mistakes, 1 Full Mock, and a weekly score projection. That’s enough to build the habit and lift your score 50–80 points.
Prepful Pro is $239.99/year (≈$19.99/month, save 60% vs Monthly), with a 7-day free trial. Pro unlocks unlimited customizable Smart Drills, all 20 Full Mocks, unlimited Mini Mocks, snap-a-question with your camera, real-time section-by-section score projection, and a forever Mistake Bank. We also offer Monthly ($49.99/mo) and Weekly ($19.99/wk) for shorter timelines.
No ads. No data sales. No surprise charges. That’s the whole business.
WHO WE ARE
A small team. Big homework.
We’re educators, engineers, designers and tutors who’ve spent years inside test prep — teaching it, building it, watching kids struggle through it. We’re remote-first, distributed across North America and Asia. Our content authors come from the classroom. Our engineers come from product apps you’ve probably used. Our learning scientists are obsessed with one number: did you show up today.
CAREERS
We’re hiring.
We’re a small remote-first team. Current open roles:
- Senior content author — DSAT Math (full-time, remote)
- Mobile engineer — React Native / Swift / Kotlin (full-time, remote)
- Learning scientist — adaptive testing & psychometrics (full-time, remote)
- Growth designer (full-time, remote)
Email team@prepful.ai with your resume + one paragraph on why you apply for the position.
PRESS
Press & recognition.
For press inquiries, brand assets (including the Pax otter), or interview requests, reach us at team@prepful.ai. We aim to respond within one business day.
CONTACT
Get in touch.
- General & everything else: team@prepful.ai
- Support: support@prepful.ai (we answer within 1 business day)
Meet Pax. Five minutes.
Take the free diagnostic, get a real projected score, and see how the daily mission feels. No card.