New: “Fractions Basics” Take your first steps in working with fractions – including exercises on comparing, reducing, and expanding fractions. You can now also select specific exercise types within each topic area.

We are very happy to provide this major update with a lot improvements. The exercises are now grouped by topics like "Numbers Basics" or "Numbers Advanced". For each group you can reach multiple progress level. There are also three new types of exercises. "Number Line", "Compare Numbers" and computing the "Digit Sum". Design improvements are also part of this update. So everything is ready for learning math with even more fun.

We improved the Day Streak functionality and added a celebration screen for an extended Day Streak.

Small fixes and improvements

With this version we give our main character a new look. Also we have added some sound effects for celebrating your correct answers and new highscores.

In this version we have improved the Day Streak design, besides some other design improvements. Have fun and keep learning.

With this version we introduce the new task type "Predecessor and Successor". There you can now guess the predecessor and successor of a given number. We also improved the design of some UI elements. Have fun and thanks for using 4 Plus 4!

This version comes with a nice improvement. If you have given a wrong answer, you can show the correct answer for all type of exercises. Have fun by improving your math skills.

Happy New Year! We have a lot of new stuff planned for this year, so stay tuned. In this version we have improved the description of the exercises and some design updates.

Stay motivated with our Day Streak feature! By learning math daily, you’ll build consistent habits and strengthen your skills over time. Keep your streak going to track your progress and stay on top of your learning goals!

Stay motivated with our Day Streak feature! By learning math daily, you’ll build consistent habits and strengthen your skills over time. Keep your streak going to track your progress and stay on top of your learning goals!

We did some redesign of the Calke game and updated a lot of stuff internally. Now we work already on new exercises and images. Have fun using 4 Plus 4

Some minor improvements.

Some minor improvements.

This update provides the new exercise type "Number Series". Here you have to find the next number in a sequence. For example 3, 6, 9, 12, ... Have fun with this update. We are very happy about every feedback.

With this version we provide a new major release and the completely new learning tab. It provides different math topics and the possibility for training by solving exercises.

We have improved and fixed some stuff. Thanks for using our app.

We are happy to present with 'Calke' our first mini game. Game Center is also included, so you can compare your results with players around the world.