Think like a doctor.
Pass Step 2 CK.

Master clinical reasoning across all specialties. Q-Bank, cases, and AI built for vignette-style thinking.

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pass rate

4.8+

50k+ members

Step 2 CK is a clinical reasoning marathon. Hundreds of specialties, management decisions, ethics — applied knowledge under time pressure. We built tools for that.

Study Resources

Everything you need
for USMLE Step 2 CK

Three core resources aligned with NBME Step 2 CK blueprints and clinical medicine.

6,000+ Step 2 CK-style questions

Clinical vignettes that mirror the actual USMLE Step 2 CK format. Single best answer and management-focused scenarios — all mapped to NBME specialty blueprints.

·Organised by specialty and clinical presentation
·Evidence-based management explanations
·High-yield pharmacology with clinical use
·Performance tracking by specialty and difficulty

AI Powered

AI that understands medicine

Your always-on study companion

Ask Rezzy anything—by text or voice—and get instant answers tied to NBME blueprints, Harrison's, and First Aid.

Text or voice chat—hands-free study
Generates tables comparing drugs, diseases, pathways
Creates flowcharts and concept maps on demand
Explains complex topics in USMLE-focused language

Step 2 CK’s Secret Weapon

Synapses

The concept-linking game for clinical reasoning. Connect presentations to diagnoses and management plans.

Link presentations. Build clinical reasoning.

Step 2 CK demands connecting patient presentations to the right diagnosis and management. Synapses turns those clinical algorithms into a game so they stick.

🧠High-yield clinical cases curated for Step 2 CK
🔁Spaced repetition of clinical decision-making
🏆Compete with classmates on leaderboards

Try Now

Stay on track, stay current, stay connected

Covers all Step 2 CK specialties with analytics, updated clinical guidelines, and a connected student community.

📊

Analytics

Know exactly where you stand across every Step 2 CK specialty. Track your progress, identify weak areas, and allocate study time where it matters most.

🔬

Research

Medicine evolves — so does our content. Our AI continuously improves notes, questions, and flashcards to stay accurate and exam-relevant.

👥

Community

Connect with thousands of MS3 and MS4 students grinding Step 2 CK, share clinical tips, and stay motivated together.

Internal MedicineSurgeryOB/GYNPediatricsPsychiatryNeurologyEmergency MedicineFamily MedicineEthics & LawDermatology

4.8+

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Thousands of med students
really ❤️ Oncourse

Dr. Tawfiq
Resident
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Dr. Mahek
USMLE 99%'ile
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Dr. Amanda
USMLE 99%'ile
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Dr. Becca
USMLE Step 1
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Dr. Vibhu
USMLE Step 2CK
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Dr. Prajwal
USMLE Step 3
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Anuj
Medical Student
"The adaptive quizzes and explanations make every study session count. Best USMLE prep app I've used."

Dr. Tawfiq
Resident
"Genuinely impressive platform for med students, there's no app like it right now! Especially the games like Image Rush & Clinical Rounds!"
Dr. Mahek
USMLE 99%'ile
"Oncourse let me do as many questions as I want & that too in an interactive way! There are only a handful of questions available on other apps for Step 2ck."
Dr. Amanda
USMLE 99%'ile
"Oncourse keeps me motivated to learn everyday... I ❤️ the high yielding flashcards and maintaining the daily streak.."
Dr. Becca
USMLE Step 1
"The smart notes feature is such a game changer. I don't have to go through the tedious process of making flashcards anymore."
Dr. Vibhu
USMLE Step 2CK
"Truly remarkable! Packed with features that simply can't be found anywhere else..."
Dr. Prajwal
USMLE Step 3
"Learning with Oncourse got me a top score. Oncourse Max saves me a TON of time. It's worth every penny."
Anuj
Medical Student
"The adaptive quizzes and explanations make every study session count. Best USMLE prep app I've used."

Dr. Amanda
USMLE 99%'ile
"Oncourse keeps me motivated to learn everyday... I ❤️ the high yielding flashcards and maintaining the daily streak.."
Dr. Vibhu
USMLE Step 2CK
"Truly remarkable! Packed with features that simply can't be found anywhere else..."
Dr. Mahek
USMLE 99%'ile
"Oncourse let me do as many questions as I want & that too in an interactive way! There are only a handful of questions available on other apps for Step 2ck."
Dr. Prajwal
USMLE Step 3
"Learning with Oncourse got me a top score. Oncourse Max saves me a TON of time. It's worth every penny."
Dr. Tawfiq
Resident
"Genuinely impressive platform for med students, there's no app like it right now! Especially the games like Image Rush & Clinical Rounds!"
Dr. Becca
USMLE Step 1
"The smart notes feature is such a game changer. I don't have to go through the tedious process of making flashcards anymore."
Anuj
Medical Student
"The adaptive quizzes and explanations make every study session count. Best USMLE prep app I've used."

Dr. Amanda
USMLE 99%'ile
"Oncourse keeps me motivated to learn everyday... I ❤️ the high yielding flashcards and maintaining the daily streak.."
Dr. Vibhu
USMLE Step 2CK
"Truly remarkable! Packed with features that simply can't be found anywhere else..."
Dr. Mahek
USMLE 99%'ile
"Oncourse let me do as many questions as I want & that too in an interactive way! There are only a handful of questions available on other apps for Step 2ck."
Dr. Prajwal
USMLE Step 3
"Learning with Oncourse got me a top score. Oncourse Max saves me a TON of time. It's worth every penny."
Dr. Tawfiq
Resident
"Genuinely impressive platform for med students, there's no app like it right now! Especially the games like Image Rush & Clinical Rounds!"
Dr. Becca
USMLE Step 1
"The smart notes feature is such a game changer. I don't have to go through the tedious process of making flashcards anymore."
Anuj
Medical Student
"The adaptive quizzes and explanations make every study session count. Best USMLE prep app I've used."

FAQs

Is this aligned with USMLE Step 2 CK blueprints?+

Yes. All content is mapped to NBME Step 2 CK content specifications — specialties, physician tasks, and clinical management as defined in the most recent blueprint.

How does Synapses help with Step 2 CK?+

Synapses trains clinical reasoning under time pressure. You connect patient presentations to diagnoses and management plans, building the associative thinking that Step 2 CK vignettes test.

How long is the free trial?+

Start free and explore questions, flashcards, and lessons before upgrading. No credit card required.

When should I start using Oncourse for Step 2 CK?+

Most students start during MS3 clerkships. Using Oncourse alongside rotations helps reinforce clinical reasoning in real time — so exam prep is revision, not cramming.

Does Oncourse work on mobile?+

Yes. Oncourse is available on iOS and Android. Study on your phone, tablet, or desktop — progress syncs automatically across all devices.

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