# Nimbus 2.0 vs Mental Arithmetic Math

The clearest difference is ads: Nimbus 2.0 at none against Mental Arithmetic Math's shown. Mental Arithmetic Math's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

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

Nimbus 2.0 ships an update every 3 months, Mental Arithmetic Math every 2 months. The most recent releases landed on September 28, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Nimbus 2.0 | Mental Arithmetic Math |
| --- | --- | --- |
| Price | Free | Free |
| 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 | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Ad-supported |
| Size | 10 MB | 105 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Grupo Educare](https://appshunter.io/developer/907551692) | [Satoshi Konno](https://appshunter.io/developer/1565729374) |

## What reviewers say

### Nimbus 2.0

[App page](https://appshunter.io/ios/app/nimbus-20/id1017050405)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Nimbus 2.0 free?

Nimbus 2.0 is free to download, with no in-app purchases.

### Is Mental Arithmetic Math free?

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

### Do Nimbus 2.0 or Mental Arithmetic Math have ads?

Mental Arithmetic Math shows ads; Nimbus 2.0 does not.

### Which is updated more often, Nimbus 2.0 or Mental Arithmetic Math?

Nimbus 2.0 ships an update every 3 months, and Mental Arithmetic Math every 2 months. Most recently, Nimbus 2.0 was updated on September 28, 2026 and Mental Arithmetic Math on October 15, 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.*