Learn and improve math and arithmetic (+ - × ÷) effectively & fast. Suitable for all ages.

All math arithmetic operations (+ - × ÷)
* Addition (+)
* Subtraction (-)
* Multiplication (× including small multiplication tables)
* Division (÷)

* Write naturally as on paper
We have developed an intuitive handwriting input.

* Increasing difficulty
Tasks automatically adapt to the children's abilities.

* Learning playfully
The app motivates with great rewards and a bonus system.

* No ads.
* No personal data.
* Fair and transparent.
* Developed with teachers and educators.

What’s New

Version 1.0.2

Improved number recognition.

Ratings and Reviews

4.2 out of 5
92 Ratings

92 Ratings

Agabra2020 ,

Not for younger kids

Every time my 5-year-old tried to input the number 9, the app did not accept it, resulting in stopping the game. We tried it a few different ways, we made sure he was staying in lines but the game still was not accepting it. Also, the game is supposed to teach them to count but the time bar running out in a few seconds does not facilitate beginner counters. Not happy with it, we are removing the app.

Developer Response ,

Hey, thanks for your feedback. We really want to help. Could you please write us a quick email to so we can further invest the issue. It would help to get a picture of "your" no 9. The time bar counter is an optional feature to get more skill points, so for very early beginners, you can just ignore it. Again, sorry for any inconvenience and thank you for any help we get from you. Best from Berlin, Leoni

WaterBoard ,


I know how to wright

Developer Response ,

Hey Dumb, this is app is for mental arithmetic... try our EASY peasy Spelling to improve your writing skills :-) Best, Leoni


wonderkind GmbH
101.4 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Danish, Dutch, Finnish, French, German, Greek, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese

Age Rating
In-App Purchases
  1. Subtraction Deck $1.99
  2. Large multiplication tables $1.99
  3. Small multiplication tables $1.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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