Soroban Training
Jumpei Adachi · Education
Independent analytics for this App Store listing. AppTracker is not affiliated with Jumpei Adachi.
Chart standing · US
What changed · US
Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.
Price & rating history · US
Reconstructed from the listing changes AppTracker has observed in this storefront. A field is charted once it has changed more than once, and each line starts at the value it moved from.
Average rating · ★ 4.67 now · 2 changes on record
In-app purchases · US
What this app sells inside itself, grouped by kind and priced for this storefront.
Screenshots
About
This app enables you to play an abacus on the touch screen. You can also just create problems, so you can practice the abacus using your actual abacus.
What's new · 20260613
Fixed an issue where touch response was delayed on some OS versions.
Details