Abacus Lesson

Hirokuma.App

In-app purchases

About this app

The goal of this app is to learn abacus and calculate these questions by mental arithmetic within 5 seconds.
All lessons of the abacus lesson series, which have been highly evaluated all over the world, are recorded. The lessons have been reworked in a more polite and easy-to-understand.
In addition, we have added unique training methods such as training focusing on finger movements and mental arithmetic training to improve mental arithmetic in order to learn abacus more efficiently.
And various improvements have been made.
- Either vertical screen or horizontal screen can be selected.
- The position and size of the abacus and window can be freely laid out.
- No ads.
- Added sound variations. Volume control can also be finely set.
- The color of the abacus can be set freely.
- Earn a trophy by achieving the goal.
- Smoother operability by optimizing the app.

◆Support web page
　https://hirokuma.blog/?p=4427

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Ratings and reviews

Edit: I thought the first lessons were really good, but the explanations started getting more and more confusing, now I'm at Level 7 and read the lesson many times but still don't understand it. That's why I removed two stars, I feel that it wasn't worth what I paid for... Great app! I'm really learning to use the abacus with it. My only complaint is that it's hard to manipulate the beads correctly sometimes, and it would be great if there were lessons with more advanced operations.

It's good. Rather expensive. Different abaci have different "decimal points" on the bar. To make it worth $10, it would need to be very extensive and highly computational. As it stands Abacai use is very simple, but very capable people use them for both very advanced functions and at high speed - it needs to push the limits of maths , science, physics, chemistry etc. Also PDF books for download and different operating systems would be good ( LINUX ). Also the writing is very tiny and unreadable.

Really good lessons. But it bothers me that my paid lessons are not avaible offline.

What’s new

Updated Library