MRCS Part B is spoken, timed and marked to a scheme. VivaVoice is a full mock OSCE with an AI coach that examines you out loud, scores you against the real marksheet, and shows you exactly where the marks went.
Reading textbooks and clicking through question banks builds knowledge — but the OSCE tests something else: whether you can deliver it out loud, under time pressure, with an examiner in front of you. VivaVoice is built for that moment. You speak your answers, an AI examiner probes your reasoning the way a real one would, and every station is scored against the same marksheet the Royal Colleges use — so you can see, station by station, where the marks are won and lost. Most candidates have never said their answers aloud before exam day; that first rehearsal shouldn't be the real thing. Practise until the format feels routine and your knowledge does the talking.
Each mock runs the complete circuit at the exact timings you'll face on the day, so pacing stops being a variable long before it counts. The examiner stays in role from the first bell to the last — asking follow-ups, pushing on thin reasoning, never feeding you the answer. When it ends you get structured feedback tied to the domains the real marksheet scores, so "do better" becomes a specific, fixable list. Come back as often as you like; your scores are saved so you can watch the trend, not just the last attempt.
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Built by a UK doctor and surgical consultant — tailored to the official mark scheme and curriculum.
MRCS Part B is live now. PACES, FRCA and interview prep are in early access — take a look.
I love Osler! After failing the exam once before, it helped me work out a much better timing technique. The feedback took me from scoring 12s to 16–18s.
I'm grateful for the early access discount. As an auditory learner, I found this extremely efficient. I can't believe how far AI has come in making exam preparation feel so realistic.
Excellent value — like having a pocket mock exam with outstanding feedback. Osler is amazing and really simulated a real examiner. If all possible stations were available, it would be a one-stop revision guide.
After failing twice, Osler was recommended to me by my TPD. I've always found OSCEs very nerve-racking and would often get anxious, but the practice, well-being support, and coaching clinic really helped calm my nerves. Osler's feedback showed me where my wording could be improved, and I was able to fix this before the exam. When I sat the exam in Manchester, I felt less nervous and explained things much better.
Osler is an amazing AI exam coach. The mock exams, stations, and feedback are better than any other resource I've used. After spending many hours clicking through answers mentally, I realised the huge difference that real practice makes — and where I was dropping marks. It's better than a study partner, who often has the same knowledge gaps as I do.
Exam preparation is a marathon. Our evidence-based wellbeing programme offers short audio sessions on sleep, stress, diet, exercise and performance — built to keep you steady on the way to exam day.
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