# IT Mastery vs PDE Data Engineer Exam Prep

The clearest difference is in-app purchases: PDE Data Engineer Exam Prep at none against IT Mastery's 4. IT Mastery's advantage is update cadence (every 8 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. IT Mastery sells 4 in-app purchases, starting at $14.99 per month. PDE Data Engineer Exam Prep asks for nothing beyond the download.

IT Mastery ships an update every 8 days, PDE Data Engineer Exam Prep every 3 months. The most recent releases landed on September 30, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | IT Mastery | PDE Data Engineer Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 months |
| Size | 89 MB | 27 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Tokenizer Inc.](https://appshunter.io/developer/1667869676) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### IT Mastery

[App page](https://appshunter.io/ios/app/it-mastery-exam-practice/id6756066746)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mastery Cloud & IT – Monthly | $14.99 | per month |
| Mastery Cloud & IT – Quarterly | $29.99 | per 3 months |
| Mastery Cloud & IT – Annual | $199.99 | per year |
| IT Mastery 7-Day Access Pass | $4.99 | one-time |


### PDE Data Engineer Exam Prep

[App page](https://appshunter.io/ios/app/pde-data-engineer-exam-prep/id6757119609)

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

**In-app purchases:** none


## Frequently asked questions

### Is IT Mastery free?

IT Mastery is free to download, with in-app purchases available.

### Is PDE Data Engineer Exam Prep free?

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

### Do IT Mastery or PDE Data Engineer Exam Prep have ads?

Neither IT Mastery nor PDE Data Engineer Exam Prep shows ads.

### Which is updated more often, IT Mastery or PDE Data Engineer Exam Prep?

IT Mastery ships an update every 8 days, and PDE Data Engineer Exam Prep every 3 months. Most recently, IT Mastery was updated on September 30, 2026 and PDE Data Engineer Exam Prep on September 24, 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.*