Only Abacus with Replay Function.
Watch and Learn from past mistake.

The Future of the Abacus Machine!

- Playback Analysis Function.
You have ability to make playback analysis for on-going or previous series of calculation.
If you are teaching Abacus to students, you don't have to be right next to her/him. You can replay the calculation, once you find your student made mistake.
Start until press the "All Clear" button is the one series. You are able to replay up to 5 series of calculations.

- Pick a Right Digit Size.
You can scale the Frame and pick the right size for your device.
Pick a one that most fit from 10 digits to 27 digits.

- Numeric Number Display Control Function.
You have control to show Numeric Number on the Screen. Toggle it anytime you want.

- It's Silent!!
There is no Noise!!
You can use this Abacus wherever you want.

For customer support, please contact:

What’s New

Version 1.3.1

- Bug fixed that related to interstitial Ad.

Ratings and Reviews

3.4 out of 5
5 Ratings

5 Ratings

r b w ,

A useable abacus one I wanted to buy in Tokyo. I already know how to use it. This gives me a useable abacus on my phone.

App Privacy

The developer, undefined, 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.


  • Family Sharing

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

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