iPhone Screenshots


The mental calculation speed rapidly becomes early by putting the abacus in the head.
This software is an application program that sequentially adds ten figures that appear one after another, and becomes familiar with the abacus.
The level of the sense from 1 digit and 3 seconds to 0.5 seconds is prepared in the Lite version. Where can you calculate?
The mental calculation mode is prepared of course, and calculate with an abacus in the head, please. The flash mental calculation is not a dream.

What’s New

Version 2.1

iOS8 compatibility.
iPhone6, iPhone6 Plus compatibility.

Ratings and Reviews

2.0 out of 5
1 Rating
1 Rating
YohanceLbd ,

Useful but Frustrating.

This app isn't very user friendly. Once the game or practice starts. There is no way of exiting the app until you complete the challenge. If you get stuck or lose track of what number you're on, you must force quit the app just to start over. This is incredibly frustrating. Please add proper navigation menus. Back buttons and exit buttons would be great.

Weyu ,


This is the best soroban app that I have looked at and I will certainly purchase the full version. In this version you are only limited to single digit multiplication (1-9) however the graphics and performance of this app is really great. It is fast and responsive even for two fingered gestures like setting the number "6", just like I do on my real soroban. Good app.

SorobanM ,

Great App

Works great, lots of fun, hope the full version is as good! Thank you!


hiroyuki nisiguti
5.2 MB

Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese

Age Rating
Rated 4+


  • Family Sharing

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

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