# UMA Abacus vs Prime Numbers Math Games

The clearest difference is iOS requirement: UMA Abacus at 15.6 against Prime Numbers Math Games's 17.2. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | UMA Abacus | Prime Numbers Math Games |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/prime-numbers-math-games/id6737446154/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 73 MB | 3 MB |
| Requires iOS | **15.6** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [shuihua zhu](https://appshunter.io/developer/1444836907) | [Tsz Poon](https://appshunter.io/developer/1462001466) |

## What reviewers say

### UMA Abacus

[App page](https://appshunter.io/ios/app/uma-abacus/id1460627418)

**Features:** macOS Compatibility

**In-app purchases:** none


### Prime Numbers Math Games

[App page](https://appshunter.io/ios/app/prime-numbers-math-games/id6737446154)

This app offers interactive lessons and games to help users learn and practice prime numbers, HCF, and LCM. It provides clear explanations, timed challenges, and adjustable difficulty levels for focused math revision and skill-building.

**Highlights:** Learn prime number concepts, Practice HCF and LCM calculations, Interactive number challenges, Timed game modes, Adjustable difficulty levels, Clear learning screens

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UMA Abacus free?

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

### Is Prime Numbers Math Games free?

Prime Numbers Math Games is free to download, with no in-app purchases.

### Do UMA Abacus or Prime Numbers Math Games have ads?

Neither UMA Abacus nor Prime Numbers Math Games shows ads.

### Which is updated more often, UMA Abacus or Prime Numbers Math Games?

UMA Abacus ships an update every 3 weeks, and Prime Numbers Math Games every 3 weeks. Most recently, UMA Abacus was updated on October 26, 2026 and Prime Numbers Math Games on October 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.*