# calcMod vs Prime Numbers Math Games

The clearest difference is rating: calcMod at 5.0 against Prime Numbers Math Games's 3.0. calcMod also leads on iOS requirement (15.0 vs 17.2). Prime Numbers Math Games's advantage is update cadence (every 3 weeks vs every 18 months). On price, ratings volume, 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.

calcMod holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

calcMod ships an update every 18 months, Prime Numbers Math Games every 3 weeks. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | calcMod | Prime Numbers Math Games |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calcmod-light/id1445360983/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/prime-numbers-math-games/id6737446154/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 3 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alain Cardinaux](https://appshunter.io/developer/1443066124) | [Tsz Poon](https://appshunter.io/developer/1462001466) |

## What reviewers say

### calcMod

[App page](https://appshunter.io/ios/app/calcmod-light/id1445360983)

This application helps users perform complex mathematical calculations, including factorials, primality tests, and modular arithmetic. It's designed for students and educators interested in number theory and the properties of integers.

**Highlights:** Factorial calculation up to 80!, Primality testing with change mod function, Divisor identification, Modular exponentiation, Modular inverse calculation, Number storage and recall

**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 calcMod free?

calcMod 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.

### Which has better reviews, calcMod or Prime Numbers Math Games?

calcMod is rated higher. calcMod averages 5.0 out of 5 from 1 ratings, while Prime Numbers Math Games averages 3.0 from 2 ratings.

### Do calcMod or Prime Numbers Math Games have ads?

Neither calcMod nor Prime Numbers Math Games shows ads.

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

calcMod ships an update every 18 months, and Prime Numbers Math Games every 3 weeks. Most recently, calcMod was updated on October 2, 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.*