Free until January 2027
Help build Klimbo, free until the official start
Klimbo is a personal AI tutor for children in groep 7 and 8 at a Dutch primary school. Your child practises maths, spelling and reading in Dutch for fifteen minutes a day, with questions that fit what they can already do. Until the official start in January 2027 that is free, and you tell us what could be better.
- Reading comprehension
- Maths
- Spelling and grammar
You do not need to enter any payment details. You can always stop.


How to join
- 1
Create an account and add your child.
- 2
Your child does the starting check, then practises fifteen minutes a day.
- 3
Now and then you tell us what could be better.
What you get and what we ask
What you get
The whole app, free until the official start.
A 15-minute session every day, with an explanation after a mistake.
On your phone you see how it is going.
What you miss, we try to build first.
What we ask
Your child practises for fifteen minutes on most days.
Now and then we ask you a few short questions about how it is going.
If something does not work, let us know.
The makers
Dario, Luuk and Martijn, the makers of UPYourself. Your email and your feedback reach one of the three of us.

What your child sees

The start screen: progress as a map, no mark, no ranking.

Reading comprehension: the text at the top, the question below it, then the buttons for a hint and for I don't know.

How the tutor responds when an answer is not right: first a hint, then an explanation.
Personal AI tutor
If your child gets stuck, they choose what help they get.
What to expect
Today
You create an account, add your child and link the tablet.
The first day
Your child does a starting check of about half an hour, in a few short parts. After that the tutor knows where practice starts.
After that
Your child practises for fifteen minutes on most days. You see on your phone how it is going.
Along the way
Now and then we ask you a few short questions about how it is going and what could be better.
Before the official start
We email you well in advance what Klimbo will cost.
At the start, planned for January 2027
You decide yourself whether to carry on. No money is taken until you take out a subscription. If the start moves, it stays free until then.
You can always stop. With one button in the app you delete everything of your family.
All agreements are in the terms.
Join
Start today. Until the official start it is free.
Creating an account takes two minutes. Your child starts with the starting check, and you then see on your phone how it is going.
Create a free accountWould you rather wait and hear from us?
Leave your email address. We only email you with news, such as the official start.
Questions about taking part
What does Klimbo cost after the official start?
We announce that well before the start. You pay per child, and every child after the first costs less. You decide yourself whether to carry on.
How much of my time does it take as a parent?
Creating an account and linking the tablet takes a few minutes. After that you answer a few short questions now and then, and let us know when something does not work.
My child is in groep 6 or the first year of secondary school. Can they take part?
Yes, everyone is welcome to join. Klimbo is made for groep 7 and 8: your child practises with the groep 7 or 8 material, and the starting check finds where practice starts. We hope to expand to other years.
What happens to my child's data?
From your child we only ask for a first name and the groep. Your child's account and progress are stored in a European database. If your child taps “Ik snap het nog niet” (I still don't get it), Klimbo asks an AI model from Anthropic to show the first step. That model only gets the question, the right answer and the kind of mistake. What your child typed does not go with it, and neither does anything that could identify your child. Anthropic is based in the United States and does not train its models on that data. Everything is in the privacy statement.
I already signed up as a founding family. Does anything change?
No. Your agreement stands, with the lifelong discount and the monthly call, and your founding period runs until the official start. Create an account with the same email address, and you secure your place in the app.