Conquer 99 levels! A quick calculation training game played by using a calculator is finally on the store.
Solve addition, subtraction, and more complicated operations using memory functions. Can you complete all the stages and be a calculation master?

Solve problems one after another using 3 different calculators!
Compete against time or use assist items when you are having a tough time. It offers you not only calculation training but also challenging gameplay!

Can you quickly solve the following problem by using a calculator: (129 + 94) x (65 - 39)?
Do you know how to use keys such as [M+] and [M-] on a calculator?

In everyday life, we use a calculator but most of us do not make full use of it.
Playing this app will improve your calculation skills and you will be able to solve complex calculations at once!

You'll pass the exam if you finish the game within the time limit or exceed the qualifying score.
There are 99 levels and the further you go the more difficult the problems will be. Pass all the stages!
Stuck? Use an assist item and secure your victory!

Score as high as possible without making any mistakes!

Compete with the clock to get the fastest time to win the game. Break the world record!

It offers intensive trainings such as "addition", "abacus", and "calculation with memory function".

• Detailed instructions on how to use the memory functions are included. So no worries if you don't know the operation at all.
• It also contains a simple calculator for kids that is suitable for the elementary school level calculation such as typing numbers, addition, or subtraction.

• The free version contains ads (purchasing an add-on removes the ads).
• You can play the entire app for free, but purchasing medals give you an advantage for finishing the game. You will also obtain medals by satisfying a certain condition within the game.
• Please keep in mind that all the medals are lost when the app was deleted from your device. Moreover, medals cannot be transferred to other users or cannot be transferred to other devices.

This app includes;
• advertisement
• add-ons (In-App Purchases)
• a function to post on the SNSs
* No automatic post without operation.
• links to apps and the official site
• score data collection for displaying rankings
* By signing in the Game Center, play data such as the score will be automatically sent to the server and your account name and score will be shown on the leaderboard.

What’s New

Version 1.2.1

This app has been updated by Apple to display the Apple Watch app icon.

• Improve compatibility for iOS
• Optimize for 4.7/5.5 inches screen size of iPhone
• Energy recovery time reduced to 10 minutes
• Fix add-on purchase issue
• Minor bug fixes and small improvements
* Due to technical reasons, this update requires iOS 7 or later

App Privacy

The developer,, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

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

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