About Theorio
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.
Our mission
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 More than half fail — not because they're not smart, but because the study methods are outdated.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.
The team
The people behind Theorio
Dirk van Zuijlen
Co-founder
"I want every student to feel that passing is achievable. With the right preparation, it is."
Chris Prosman
Co-founder
"We build every feature as if our own brother has to pass with it. That keeps you sharp."
Together good for 10+ years experience