Prepare for the USMLE Step 2 CK with your personal AI tutor
Practice topic by topic, with every answer explained. The first topic is free, and every other topic is included in Astra AI Sigma.
Understand it. Don’t just memorize it.
On the USMLE Step 2 CK you score when you understand what the question is really asking. The questions are grouped by topic, and the tutor shows you how to approach each one.
240 practice questions across 12 topics. The first topic is free.
What does the prep cover?
The main content areas of the USMLE Step 2 CK.
Internal medicine covered.
Diagnosis and management across organ systems.
Surgery and emergency made clear.
Acute care and surgical decisions.
Pediatrics and OB/GYN step by step.
Children, pregnancy and women’s health.
Psychiatry and ethics with practice.
Mental health, ethics and patient safety.
Practice until it sticks.
How does the prep work?
From topic to real understanding, in three steps.
1. Pick a topic
Start with the one that worries you most, or go in order.
2. Answer questions
Work through questions on that topic and see right away what you got right and what you missed.
3. Actually understand it
Your personal AI tutor explains every answer and tracks your progress topic by topic.
The first topic is free
Frequently asked questions
For medical students preparing for Step 2 CK.
The prep covers the main content areas of the USMLE Step 2 CK: internal medicine (diagnosis and management across organ systems); surgery and emergency (acute care and surgical decisions); pediatrics and OB/GYN (children, pregnancy and women’s health); psychiatry and ethics (mental health, ethics and patient safety).
They are grouped by topic: 240 questions across 12 topics, so you can work through the whole exam one area at a time.
You try the first topic with a free Astra AI account. If you want to keep going with the other topics, you unlock them with Astra AI Sigma.
No. The tutor explains why an answer is right or wrong and helps you solve the next similar question on your own.
Astra AI Sigma gives you every official exam prep in the app, such as IB Math, plus everything in Astra AI Plus.