# All directions vs PML Engineer Exam Prep

The clearest difference is update cadence: PML Engineer Exam Prep at every 3 months against All directions's every 19 months. PML Engineer Exam Prep also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

All directions ships an update every 19 months, PML Engineer Exam Prep every 3 months. The most recent releases landed on September 23, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | All directions | PML Engineer Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 months** |
| Size | 2 MB | 27 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CROMBEZ Emmanuel](https://appshunter.io/developer/375656695) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### All directions

[App page](https://appshunter.io/ios/app/all-directions/id458982023)

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

**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 All directions free?

All directions 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 All directions or PML Engineer Exam Prep have ads?

Neither All directions nor PML Engineer Exam Prep shows ads.

### Which is updated more often, All directions or PML Engineer Exam Prep?

All directions ships an update every 19 months, and PML Engineer Exam Prep every 3 months. Most recently, All directions was updated on September 23, 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.*