# Professional Data Engineer vs AWS Data Engineer Exam Prep

The clearest difference is ads: Professional Data Engineer at none against AWS Data Engineer Exam Prep's shown. Professional Data Engineer also leads on iOS requirement (10.0 vs 16.4). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Professional Data Engineer sells 1 one-off in-app purchase and AWS Data Engineer Exam Prep sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Professional Data Engineer ships an update every 13 months, AWS Data Engineer Exam Prep every 7 months. The most recent releases landed on September 6, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Professional Data Engineer | AWS Data Engineer Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (2 ratings)](https://appshunter.io/ios/app/aws-data-engineer-exam-prep/id6744887968/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 7 months** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 63 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Trieu Tran](https://appshunter.io/developer/1668827865) | [Koray Salman](https://appshunter.io/developer/1629681839) |

## What reviewers say

### Professional Data Engineer

[App page](https://appshunter.io/ios/app/professional-data-engineer/id6473723698)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock complete App | $9.99 | one-time |


### AWS Data Engineer Exam Prep

[App page](https://appshunter.io/ios/app/aws-data-engineer-exam-prep/id6744887968)

Prepare for the AWS Data Engineer Associate exam with realistic practice questions and mock tests. Learn from instant feedback and detailed explanations to master key concepts and study efficiently.

**Highlights:** 1,950 updated questions, 30 structured practice tests, Instant feedback and answers, Detailed explanations, Study anytime, anywhere, Simulates real exam experience

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Subscription - Weekly | $1.99 | per 7 days |
| Ad-Free Subscription - Monthly | $5.99 | per month |


## Frequently asked questions

### Is Professional Data Engineer free?

Professional Data Engineer is free to download, with in-app purchases available.

### Is AWS Data Engineer Exam Prep free?

AWS Data Engineer Exam Prep is free to download, with in-app purchases available.

### Do Professional Data Engineer or AWS Data Engineer Exam Prep have ads?

AWS Data Engineer Exam Prep shows ads; Professional Data Engineer does not.

### Which is updated more often, Professional Data Engineer or AWS Data Engineer Exam Prep?

Professional Data Engineer ships an update every 13 months, and AWS Data Engineer Exam Prep every 7 months. Most recently, Professional Data Engineer was updated on September 6, 2026 and AWS Data Engineer Exam Prep on July 6, 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.*