そろばん！(アカウント制バージョン)

■This app requires an account (for businesses).
■If you're looking for an abacus app for individuals, please see the list of apps by clicking "SIC Company Limited" next to the app icon at the top of the screen.

[Why not give it a try?]

This app was created for children learning abacus for the first time and for the parents who supervise them.
Don't have an abacus? No problem.
You can get started right away with just a smartphone or tablet.