# Quick Mental Math vs PRIMZ

The clearest difference is ads: Quick Mental Math at none against PRIMZ's shown. On price, update cadence, 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.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Quick Mental Math | PRIMZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Size | 6 MB | 54 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MOHAMMAD NAZARI](https://appshunter.io/developer/1631714487) | [Valentin MARTINET](https://appshunter.io/developer/755364916) |

## What reviewers say

### Quick Mental Math

[App page](https://appshunter.io/ios/app/quick-mental-math/id1642089974)

**In-app purchases:** none


### PRIMZ

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Quick Mental Math free?

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

### Is PRIMZ free?

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

### Do Quick Mental Math or PRIMZ have ads?

PRIMZ shows ads; Quick Mental Math does not.

### Which is updated more often, Quick Mental Math or PRIMZ?

Quick Mental Math ships an update weekly, and PRIMZ weekly. Most recently, Quick Mental Math was updated on October 4, 2026 and PRIMZ on October 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.*