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Now on the App Store

The exam is a timer and no second chances. Train like it.

Question-based biostatistics prep for medical students.
Biostatistiques PASS/LAS - aussi disponible entièrement en français.
Download on the App Store Google Playcoming soon
Exam simulation with timer - Stat Exam Pro

Two ways to work

Deux façons de réviser :

📚 Study by Topics

Pick a topic, answer questions at your own pace, get the explanation right after each answer.

Révision par thème, corrections immédiates.

⏱️ Practice Test

Timer on, no feedback until the end: you see what you got right only when you submit. Like the real exam, on purpose.

Examen blanc : chrono, corrections à la fin.

What's inside

Les thèmes, tels qu'ils apparaissent dans l'app :

0.1Numbers, Risks and Tests in Medicine

Nombres, risques et tests en médecine

0.2Probability Foundations for Medical Statistics

Fondements probabilistes des statistiques médicales

1.1Intro to Medical Test Accuracy (Se, Sp, PPV, NPV)

Introduction à la performance des tests médicaux (Se, Sp, VPP, VPN)

1.2Probability and Diagnostic Test Evaluation

Probabilités et évaluation des tests diagnostiques

1.3Diagnostic Test Paradoxes & Intuition Traps

Paradoxes des tests diagnostiques et pièges de l'intuition

Hypothesis Testing, p-values & Confidence Intervals

Tests d'hypothèses, valeurs p et intervalles de confiance

Relative Risk, Odds Ratio & NNT

Risque relatif, odds ratio et NNT

...and the question bank keeps growing.

Learn for free

Apprendre gratuitement :

🎛️ Interactive playgrounds

Drag a slider - or a patient - and watch PPV, NNT, the ROC curve or a survival curve react. The fastest way to feel why the numbers behave the way they do.

💥 Stat Fails

Documented cases where a statistical error had real consequences, with sources and the reasoning worked through.

📖 Lessons & sources

ROC and AUC explained from scratch for clinicians, and the real studies behind every number in our calculators.

Every core topic, two exam modes, English and French - in your pocket before the next revision session.

Get it on iPhone