# Smart Abacus™ PreK-Grade 1 (Free) – Addition and Subtraction — user reviews

> 1 indexed App Store user reviews of Smart Abacus™ PreK by The Critical Thinking Company, rated 4.10/5 from 7 ratings.

- Source: https://appshunter.io/ios/app/smart-abacus-prek-grade-1-free-addition-and-subtraction/id1072427114/reviews
- App overview in markdown: https://appshunter.io/ios/app/smart-abacus-prek-grade-1-free-addition-and-subtraction/id1072427114.md
- Rating breakdown: 5★ 4 · 4★ 2 · 3★ 0 · 2★ 0 · 1★ 1

## Most critical reviews (1 lowest-rated)

### 5/5 — No calculator?

*2024-05-08*

The app is really great, but I can’t figure out how to unlock the calculator. None of the pictures show the calculator so I wonder if it even works. It would be very helpful if it did.

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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 2026-06-10.*