# Prime Checker vs Math is Easy

The clearest difference is rating: Prime Checker at 5.0 against Math is Easy's 3.5. Math is Easy's advantage is update cadence (every 2 months vs every 17 months) and iOS requirement (7.0 vs 12.4). On price, review sentiment, ratings volume and ads 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 holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 96% of Prime Checker's written reviews are positive against 91% of Math is Easy's.

Prime Checker ships an update every 17 months, Math is Easy every 2 months. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Prime Checker | Math is Easy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prime-checker/id389112910/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/math-is-easy-prime/id488574860/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | **95.8% of reviews** | 90.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 3 MB | 6 MB |
| Requires iOS | 12.4 | **7.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heart Solutions, Inc.](https://appshunter.io/developer/389112913) | [Xiaodong Zhu](https://appshunter.io/developer/414505553) |

## 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


### Math is Easy

[App page](https://appshunter.io/ios/app/math-is-easy-prime/id488574860)

This app helps users understand prime factorization with a fast, real-time solver. It also calculates the Greatest Common Factor and Least Common Multiple, and can generate random numbers for various uses.

**Highlights:** Prime factorization solver, Greatest Common Factor (GCF) calculation, Least Common Multiple (LCM) calculation, Random number generator, Real-time results as you type

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

**In-app purchases:** none


## Frequently asked questions

### Is Prime Checker free?

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

### Is Math is Easy free?

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

### Which has better reviews, Prime Checker or Math is Easy?

Prime Checker is rated higher. Prime Checker averages 5.0 out of 5 from 3 ratings, while Math is Easy averages 3.5 from 2 ratings.

### Do Prime Checker or Math is Easy have ads?

Neither Prime Checker nor Math is Easy shows ads.

### Which is updated more often, Prime Checker or Math is Easy?

Prime Checker ships an update every 17 months, and Math is Easy every 2 months. Most recently, Prime Checker was updated on September 29, 2026 and Math is Easy on October 9, 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.*