3.1.7
Updated target API level to 33.
3.1.5
Feb 2, 2023
fixed minor bug.
3.1.4
Nov 14, 2022
Fixed a problem that can not be started on Android12 or higher
3.1.2
Aug 4, 2022
updated library
All contents can be used free of charge in this application.
Added the feature to set sound effect on/off. Abacus operation sound and other sound effects can be set individually.
3.1.0
March 16, 2022
All contents can be used free of charge in this application.
Added the feature to set sound effect on/off. Abacus operation sound and other sound effects can be set individually.
2.0.9
January 31, 2022
All content is free for this application, but since there was a request to remove advertisements, we added a feature to delete advertisements by purchasing as donate.
2.0.8
January 17, 2022
Fixed minor bugs.
Improved operability of the abacus
2.0.7
December 20, 2021
Fixed an issue that beads would make a sound with just a touch.
2.0.5
November 5, 2021
added introduction of division lesson app.
fixed typo.