# Abacus 10 — user reviews

> 2 indexed App Store user reviews of Abacus 10 by Karakun AG, rated 2.50/5 from 2 ratings.

- Source: https://appshunter.io/ios/app/abacus-10/id1451243098/reviews
- App overview in markdown: https://appshunter.io/ios/app/abacus-10/id1451243098.md
- Rating breakdown: 5★ 0 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 1

## Most critical reviews (2 lowest-rated)

### 1/5 — No iPhone app

*2020-01-03, version 1.0*

I have an iPhone 7 and the app says “sorry, your device is too small” when I try to open it.

### 4/5 — It’s almost perfect

*2019-12-27, version 1.0*

When I looked on Amazon and the App Store for an abacus, I kept finding them with 10, not 9, balls in a row and different rows had different colors. I would love it if you added a 10 ball to each row and let me choose the color of each row.  An in-app purchase of these options works for me.  I really like the size of the balls. The design is very professional looking.  
The abacus is for me, not a child.  I need it for physical therapy.  For example, my therapist wants three sets of ten with a ten second hold each time. I am 75 and lose track of all those numbers. I will use each pair of rows for the three different categories.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*