# PML Engineer Exam Prep vs Braillattice

The clearest difference is price: PML Engineer Exam Prep at Free against Braillattice's $0.99. PML Engineer Exam Prep also leads on iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

PML Engineer Exam Prep is free to download; Braillattice costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | PML Engineer Exam Prep | Braillattice |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 27 MB | 36 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Davy Raitt](https://appshunter.io/developer/1795318281) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## What reviewers say

### 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


### Braillattice

[App page](https://appshunter.io/ios/app/braillattice-ueb-trainer/id6794026761)

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

**In-app purchases:** none


## Frequently asked questions

### Is PML Engineer Exam Prep free?

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

### Is Braillattice free?

Braillattice costs $0.99, with no in-app purchases.

### Do PML Engineer Exam Prep or Braillattice have ads?

Neither PML Engineer Exam Prep nor Braillattice shows ads.

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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.*