How Step3Sim Works
You know the medicine. The CCS software is the hard part. Step3Sim coaches you during cases and explains what you missed after — so you stop making the same mistakes.
Create Your Free Account
Sign up in 30 seconds — no credit card, no trial timer. Full access to everything: 7,700+ MCQs, 200+ CCS cases, mock exams, and AI coaching. Free during beta.
Choose Your Practice Mode
Pick MCQ blocks or CCS case simulations. Configure question count, time limits, and subject filters to match your study plan.
Get AI Coaching as You Go
During CCS cases, Socratic hints nudge your clinical reasoning when you're stuck — without spoiling the answer. After each case, a full AI debrief explains what you missed and why it matters clinically.
Focus Your Study on Real Gaps
Every debrief includes personalized study recommendations based on what you actually missed — not generic topic lists. MCQ explanations break down the reasoning for every answer choice.
What's Included
200+ CCS Cases
Across 16 medical categories covering the full breadth of the Step 3 exam.
7700+ MCQ Questions
High-yield questions with detailed explanations written for Step 3 readiness.
2026 Exam Interface
Pixel-perfect replica of the new USMLE interface — practice exactly as you'll test.
AI Coaching & Debriefs
Real-time hints during cases and detailed clinical debriefs after — no other platform offers this.
Ready to start?
Stop reverse-engineering your CCS mistakes. Get AI coaching that explains the clinical reasoning behind every case — free during beta.
No credit card required