# Prime Checker vs Animal math training

The clearest difference is ads: Prime Checker at none against Animal math training's shown. Prime Checker also leads on iOS requirement (12.4 vs 15.0). Animal math training's advantage is update cadence (fortnightly vs every 17 months). On price, in-app purchases and device support there is nothing between them.

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

Prime Checker ships an update every 17 months, Animal math training fortnightly. The most recent releases landed on August 29, 2026 and May 15, 2026 respectively.

## The numbers

| Metric | Prime Checker | Animal math training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prime-checker/id389112910/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 95.8% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 17 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 3 MB | 266 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heart Solutions, Inc.](https://appshunter.io/developer/389112913) | [Shoichi Imamura](https://appshunter.io/developer/603378476) |

## What reviewers say

### Prime Checker

[App page](https://appshunter.io/ios/app/prime-checker/id389112910)

This app performs advanced mathematical calculations for numbers, including integer factorization, Euler's totient function, and solving specific Diophantine equations. It utilizes advanced algorithms for factorization and primality testing.

**Highlights:** Integer factorization, Euler's totient function, Primitive root calculation, Diophantine equation solver, Primality testing

**Features:** macOS Compatibility

**In-app purchases:** none


### Animal math training

[App page](https://appshunter.io/ios/app/animal-math-training/id6739468187)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Prime Checker free?

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

### Is Animal math training free?

Animal math training is free to download, with no in-app purchases.

### Do Prime Checker or Animal math training have ads?

Animal math training shows ads; Prime Checker does not.

### Which is updated more often, Prime Checker or Animal math training?

Prime Checker ships an update every 17 months, and Animal math training fortnightly. Most recently, Prime Checker was updated on August 29, 2026 and Animal math training on May 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.*