# PRIMZ vs Prime Rush

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

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

PRIMZ ships an update weekly, Prime Rush every 3 weeks. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PRIMZ | Prime Rush |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 54 MB | 21 MB |
| Requires iOS | **15.6** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Valentin MARTINET](https://appshunter.io/developer/755364916) | [Ayumu Izumi](https://appshunter.io/developer/1822273057) |

## What reviewers say

### PRIMZ

[App page](https://appshunter.io/ios/app/primz/id6499497243)

**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

**In-app purchases (1)**

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


## Frequently asked questions

### Is PRIMZ free?

PRIMZ 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 PRIMZ or Prime Rush have ads?

Both PRIMZ and Prime Rush show ads.

### Which is updated more often, PRIMZ or Prime Rush?

PRIMZ ships an update weekly, and Prime Rush every 3 weeks. Most recently, PRIMZ was updated on September 8, 2026 and Prime Rush on September 10, 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.*