# Math Math + vs PML Engineer Exam Prep

The clearest difference is update cadence: PML Engineer Exam Prep at every 3 months against Math Math +'s every 9 months. PML Engineer Exam Prep also leads on iOS requirement (15.0 vs 26.0). On price, ads, 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.

Math Math + ships an update every 9 months, PML Engineer Exam Prep every 3 months. The most recent releases landed on September 27, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Math Math + | PML Engineer Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Size | 12 MB | 27 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mehmet Sucu](https://appshunter.io/developer/1570634910) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### Math Math +

[App page](https://appshunter.io/ios/app/math-math-plus/id1570634908)

**Features:** macOS Compatibility

**In-app purchases:** none


### PML Engineer Exam Prep

[App page](https://appshunter.io/ios/app/pml-engineer-exam-prep/id6757166329)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Math + free?

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

### Is PML Engineer Exam Prep free?

PML Engineer Exam Prep is free to download, with no in-app purchases.

### Do Math Math + or PML Engineer Exam Prep have ads?

Neither Math Math + nor PML Engineer Exam Prep shows ads.

### Which is updated more often, Math Math + or PML Engineer Exam Prep?

Math Math + ships an update every 9 months, and PML Engineer Exam Prep every 3 months. Most recently, Math Math + was updated on September 27, 2026 and PML Engineer Exam Prep on September 28, 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.*