# Mental Abacus vs Abacus Adventure 1

The clearest difference is rating: Mental Abacus at 3.9 against Abacus Adventure 1's 3.3. Mental Abacus also leads on device support (4 vs 1). Abacus Adventure 1's advantage is price ($5.99 vs $8.99) and review sentiment (80% vs 67%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Mental Abacus costs $8.99 and Abacus Adventure 1 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mental Abacus holds the better App Store score, 3.9 against 3.3. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews complicate that: 67% of Mental Abacus's written reviews are positive against 80% of Abacus Adventure 1's, so the app with the better star average is not the one people write more warmly about.

Mental Abacus ships an update every 13 months, Abacus Adventure 1 every 9 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Mental Abacus | Abacus Adventure 1 |
| --- | --- | --- |
| Price | $8.99 | **$5.99** |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/mental-abacus/id489127101/reviews)** | [3.3 (4 ratings)](https://appshunter.io/ios/app/abacus-adventure-1/id568745401/reviews) |
| Number of ratings | **7** | 4 |
| Positive reviews | 66.7% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 9 months** |
| Monetization | Paid | Paid |
| Size | 17 MB | 28 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hamster Force Multimedia Ltd.](https://appshunter.io/developer/443416476) | [EverQuiz](https://appshunter.io/developer/450751748) |

## What reviewers say

### Mental Abacus

[App page](https://appshunter.io/ios/app/mental-abacus/id489127101)

Master abacus mental arithmetic with illustrated tutorials and a step-by-step demonstrator. Practice calculations on a virtual abacus and learn the two-hands fingering method to enhance right brain functions. Ideal for self-learning addition and subtraction.

**Highlights:** Illustrated tutorials, Step-by-step demonstrator, Virtual abacus practice, Two hands fingering method, Addition and subtraction, Rapid calculation exercises

**Features:** Vision Pro support

**In-app purchases:** none


### Abacus Adventure 1

[App page](https://appshunter.io/ios/app/abacus-adventure-1/id568745401)

Learn abacus and mental arithmetic through step-by-step tutorials and engaging games. Progress through 55 stages to master calculations and save the princess. Designed by experts for children aged 5 and up.

**Highlights:** Step-by-step abacus tutorial, Abacus skill training games, Mental arithmetic practice, 55 game stages, Unlockable levels and rewards, Designed by qualified teachers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mental Abacus free?

Mental Abacus costs $8.99, with no in-app purchases.

### Is Abacus Adventure 1 free?

Abacus Adventure 1 costs $5.99, with no in-app purchases.

### Which has better reviews, Mental Abacus or Abacus Adventure 1?

Mental Abacus is rated higher. Mental Abacus averages 3.9 out of 5 from 7 ratings, while Abacus Adventure 1 averages 3.3 from 4 ratings.

### Do Mental Abacus or Abacus Adventure 1 have ads?

Neither Mental Abacus nor Abacus Adventure 1 shows ads.

### Which is updated more often, Mental Abacus or Abacus Adventure 1?

Mental Abacus ships an update every 13 months, and Abacus Adventure 1 every 9 months. Most recently, Mental Abacus was updated on November 1, 2026 and Abacus Adventure 1 on November 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*