the smartest way to pass your boards.
iatroX is the ai-powered q-bank for the USMLE Step 2 CK, USMLE Step 3, ABFM, ABIM, ABEM.
we use proven cognitive science to guarantee you learn more, faster.
traditional q-banks are just lists. iatroX is an intelligent learning system built on proven cognitive science.
1. active recall (the testing effect)
Our entire system is built on active recall—the act of retrieving information. This is scientifically demonstrated to be significantly more effective for retention than passively re-reading notes.
(source: Karpicke, J. D., & Roediger, H. L. (2008). The Critical Importance of Retrieval for Learning.)2. spaced repetition (long-term retention)
Built on the Ebbinghaus 'Forgetting Curve,' our algorithm schedules questions at the perfect, increasing intervals to interrupt the forgetting process and lock knowledge into your long-term memory.
(source: Ebbinghaus, H. (1885). Memory: A Contribution to Experimental Psychology.)stop guessing. our ai-powered dashboard gives you the 1-on-1 guidance of a personal tutor to find and fix your knowledge gaps.


mastery learning
Our performance dashboard visually tracks your proficiency by topic, helping you apply 'Mastery Learning' to focus *only* on what you haven't mastered, ensuring you're truly ready for exam day.
(source: Bloom, B. S. (1968). Learning for Mastery.)the 2 sigma problem
Your AI dashboard acts as a personal 1-to-1 tutor. This approach is proven to be **two standard deviations** more effective than conventional study by providing personalized, formative feedback.
(source: Bloom, B. S. (1984). The 2 Sigma Problem: The Search for Methods of Instruction as Effective as One-to-One Tutoring.)formative assessment
Traditional Q-banks just give you a final score. Our dashboard provides real-time, diagnostic feedback to guide your *next* step, a process proven to produce substantial learning gains.
(source: Black, P., & Wiliam, D. (1998). Inside the Black Box: Raising Standards Through Classroom Assessment.)$399.99/ year
billed once annually. includes a 30-day money-back guarantee.
skeptical? try our free uk q-bank to test the ai engine.
- 15,000+ questions (ABFM, ABIM, ABEM, etc.)
- Mapped to USMLE Step 2 CK & USMLE Step 3
- ai-powered adaptive sequencing
- spaced repetition algorithm
- ai performance dashboard (knowledge gap analysis)
- unlimited access
stop grinding. start learning intelligently.
| feature | iatroX (us) | uworld | rosh review |
|---|---|---|---|
| learning model | ai-adaptive + spaced repetition | static q-bank | static q-bank |
| core technology | cognitive science | brute force memorization | brute force memorization |
| price (annual) | $399.99 | $600+ | $500+ |
see how iatroX compares to uworld, rosh review, and mksap.
what exams are covered?
how does the 30-day guarantee work?
if you purchase the annual plan and are not satisfied for any reason within 30 days, contact us for a full, no-questions-asked refund.
can i cancel my monthly plan?
yes, you can cancel your monthly subscription at any time through your account profile. you will retain access until the end of your current billing period.
how is this different from the free uk quiz?
the free iatroX quiz is based on uk clinical guidelines. this is a separate, premium product line specifically built and mapped for us board certification exams, with a much larger question bank and different content.