The team behind Theorio
Dirk and Chris built Theorio on a single conviction: passing the CBR exam shouldn't come down to luck or expensive courses.
Make CBR theory learning fun and effective
The pass rate for the Dutch CBR theory exam is 39.7%. More than half fail — not because they're not smart, but because the study methods are outdated. Thick books that stay on the shelf, expensive day courses that put you to sleep, and no insight into your own progress.
That's why we built Theorio: an app that feels like Duolingo — playful, addictive and motivating — but with the depth and reliability you need to actually pass the CBR.
- Built on proven learning psychology: personalised repetition, mastery learning and intrinsic motivation.
- 100% up-to-date for the 2026 CBR theory exam — all questions, signs and rules.
Waarom Theorio werkt
Lightning fast learning
AI remembers what you find difficult and directs you to the questions that give you the most progress.
Real-time pass probability
You always know exactly how close you are to passing. No guesswork, no stress about timing.
CBR-proof practice
35 practice exams identical to the real CBR exam. If you pass here, you pass at the CBR.
The people behind Theorio
Dirk van Zuijlen
Co-founder
BUILDER"I want every student to feel that passing is achievable. With the right preparation, it is."
Chris Prosman
Co-founder
TECH"We build every feature as if our own brother has to pass with it. That keeps you sharp."
Together good for 10+ years experience