# Mental Arithmetic Math vs Infinite Digits

The clearest difference is price: Mental Arithmetic Math at Free against Infinite Digits's $5.99. Mental Arithmetic Math also leads on update cadence (every 2 months vs every 7 months). Infinite Digits's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Mental Arithmetic Math is free to download; Infinite Digits costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mental Arithmetic Math ships an update every 2 months, Infinite Digits every 7 months. The most recent releases landed on October 11, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Mental Arithmetic Math | Infinite Digits |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[4.4 (90 ratings)](https://appshunter.io/ios/app/mental-arithmetic-math/id1580847431/reviews)** | — |
| Number of ratings | **90** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Ad-supported | — |
| Size | 105 MB | 67 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Satoshi Konno](https://appshunter.io/developer/1565729374) | [SimTeCon GmbH](https://appshunter.io/developer/1761797043) |

## What reviewers say

### Mental Arithmetic Math

[App page](https://appshunter.io/ios/app/mental-arithmetic-math/id1580847431)

Engage in fun arithmetic challenges suitable for all ages. Improve your math skills and concentration with adjustable difficulty levels. Play solo or with friends, even offline, for a quick and enjoyable brain workout.

**Highlights:** Arithmetic challenges, Adjustable difficulty, Suitable for all ages, Play with friends, Offline play, Improves concentration

**Features:** macOS Compatibility

**In-app purchases:** none


### Infinite Digits

[App page](https://appshunter.io/ios/app/infinite-digits/id6670347455)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mental Arithmetic Math free?

Mental Arithmetic Math is free to download, with no in-app purchases.

### Is Infinite Digits free?

Infinite Digits costs $5.99, with no in-app purchases.

### Do Mental Arithmetic Math or Infinite Digits have ads?

Mental Arithmetic Math shows ads; Infinite Digits does not.

### Which is updated more often, Mental Arithmetic Math or Infinite Digits?

Mental Arithmetic Math ships an update every 2 months, and Infinite Digits every 7 months. Most recently, Mental Arithmetic Math was updated on October 11, 2026 and Infinite Digits on September 16, 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.*