# Mental Abacus vs Abacus

The clearest difference is review sentiment: Mental Abacus at 67% against Abacus's 15%. Abacus's advantage is price ($2.99 vs $8.99). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Mental Abacus costs $8.99 and Abacus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mental Abacus ships an update every 13 months, Abacus every 9 months. The most recent releases landed on October 23, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Mental Abacus | Abacus |
| --- | --- | --- |
| Price | $8.99 | **$2.99** |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/mental-abacus/id489127101/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **66.7% of reviews** | 15.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 9 months** |
| Monetization | Paid | Paid |
| Size | 17 MB | 12 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hamster Force Multimedia Ltd.](https://appshunter.io/developer/443416476) | [俊 姜](https://appshunter.io/developer/974809005) |

## 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

[App page](https://appshunter.io/ios/app/abacus-dancing-fingers/id1153561673)

This educational app combines ancient calculation wisdom with modern technology. It features a beautiful interface with large beads, supports decimal points and negative numbers, and offers multilingual support for a fun and engaging learning experience.

**Highlights:** Beautiful interface with large beads, Support for decimal points and negative numbers, 21-column abacus, Multilingual support (19 languages), Interactive calculation examples

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mental Abacus free?

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

### Is Abacus free?

Abacus costs $2.99, with no in-app purchases.

### Do Mental Abacus or Abacus have ads?

Neither Mental Abacus nor Abacus shows ads.

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

Mental Abacus ships an update every 13 months, and Abacus every 9 months. Most recently, Mental Abacus was updated on October 23, 2026 and Abacus on October 18, 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.*