# Math is Easy vs Prime Rush

The clearest difference is in-app purchases: Math is Easy at none against Prime Rush's 1. Math is Easy also leads on ads (none vs shown) and device support (3 vs 1). Prime Rush's advantage is update cadence (every 3 weeks vs every 2 months). On price there is nothing between them.

Both are free to download. Prime Rush sells 1 one-off in-app purchase. Math is Easy asks for nothing beyond the download.

Math is Easy ships an update every 2 months, Prime Rush every 3 weeks. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Math is Easy | Prime Rush |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/math-is-easy-prime/id488574860/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 6 MB | 21 MB |
| Requires iOS | **7.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Xiaodong Zhu](https://appshunter.io/developer/414505553) | [Ayumu Izumi](https://appshunter.io/developer/1822273057) |

## What reviewers say

### 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


### Prime Rush

[App page](https://appshunter.io/ios/app/prime-rush-math-time-attack/id6755986782)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $1.99 | one-time |


## Frequently asked questions

### Is Math is Easy free?

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

### Is Prime Rush free?

Prime Rush is free to download, with in-app purchases available.

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

Prime Rush shows ads; Math is Easy does not.

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

Math is Easy ships an update every 2 months, and Prime Rush every 3 weeks. Most recently, Math is Easy was updated on November 1, 2026 and Prime Rush on November 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.*