# Mental Calculation & Abacus vs EqX

The clearest difference is update cadence: EqX at every 8 days against Mental Calculation & Abacus's every 6 months. On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mental Calculation & Abacus ships an update every 6 months, EqX every 8 days. The most recent releases landed on October 27, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Mental Calculation & Abacus | EqX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/mental-calculation-and-abacus/id1582407909/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 8 days** |
| Monetization | Ad-supported | Ad-supported |
| Size | 143 MB | 29 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Park Jisang](https://appshunter.io/developer/995438886) | [Nithin Cherian](https://appshunter.io/developer/1753225725) |

## What reviewers say

### Mental Calculation & Abacus

[App page](https://appshunter.io/ios/app/mental-calculation-and-abacus/id1582407909)

Engage in a fun and educational game designed to enhance mental calculation skills. Learn to use an abacus with an easy-to-follow tutorial and practice with diverse question types.

**Highlights:** Mental calculation practice, Abacus learning tutorial, Variety of practice questions, Suitable for all ages

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

**In-app purchases:** none


### EqX

[App page](https://appshunter.io/ios/app/eqx-brain-training-math-game/id6739735556)

This app offers a challenging math puzzle adventure for all ages. Build formulas, hit target numbers, and test your skills with a variety of levels and operators. It's designed to sharpen math skills and provide a fun mental workout.

**Highlights:** Formula building, Target number challenges, Interactive keypad with advanced operators, Progressive difficulty levels, Achievements and leaderboards, Real-time feedback

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mental Calculation & Abacus free?

Mental Calculation & Abacus is free to download, with no in-app purchases.

### Is EqX free?

EqX is free to download, with no in-app purchases.

### Do Mental Calculation & Abacus or EqX have ads?

Both Mental Calculation & Abacus and EqX show ads.

### Which is updated more often, Mental Calculation & Abacus or EqX?

Mental Calculation & Abacus ships an update every 6 months, and EqX every 8 days. Most recently, Mental Calculation & Abacus was updated on October 27, 2026 and EqX 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.*