A calculator and an RPG combine to form a miraculous hybrid!
Includes bonus quick-typing game and math game!
※Rest assured, this app also works as a calculator.

- Use for regular calculator operations! Calc mode!
- Type the numbers and symbols as fast as you can! Quickdraw Colosseum!
- Try your hand at the “mental arithmetic” time attack mode in Mental Math Kingdom!

What’s New

Version 1.2.0

- Fixed for iOS12.

Ratings and Reviews

4.3 out of 5
13 Ratings

13 Ratings

Potluck77 ,


I like the old school music, reminds me of when I was a kid. I believe this game could go a lot father though. Could make it longer, give level ups, harder questions as you get further into the game, and maybe give them items like skipping skipping a problem they cant solve. would love to play something like that, maybe I should make it thanks for giving me the idea lol

Awesomesause97 ,

Needs update

Ahh! I love this app. It’s so much more fun and better than the default calculator. Sadly, it needs to be updated for iOS 11. If you are capable please update this app. I miss it.

YouTube iPod ,

Seriously underrated app

This is a fun app. The numbers on the screen being monsters, the mini games, and the 8-bit style just makes it fun. Pls advertise. 😄

App Privacy

The developer, Masakazu Yonehara, 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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