# AWS Data Engineer Prep Exam vs CDP Knowledge Test

The clearest difference is price: CDP Knowledge Test at Free against AWS Data Engineer Prep Exam's $5.99. CDP Knowledge Test also leads on update cadence (every 3 months vs every 7 months). AWS Data Engineer Prep Exam's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

CDP Knowledge Test is free to download; AWS Data Engineer Prep Exam costs $5.99 up front. CDP Knowledge Test sells 2 in-app purchases, starting at $11.99 per month. AWS Data Engineer Prep Exam asks for nothing beyond the download.

AWS Data Engineer Prep Exam ships an update every 7 months, CDP Knowledge Test every 3 months. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | AWS Data Engineer Prep Exam | CDP Knowledge Test |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/aws-data-engineer-prep-exam/id6499478513/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 13 MB | 9 MB |
| Requires iOS | **16.3** | 17.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Buydeepdiscount.com LLC](https://appshunter.io/developer/817177888) | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) |

## What reviewers say

### AWS Data Engineer Prep Exam

[App page](https://appshunter.io/ios/app/aws-data-engineer-prep-exam/id6499478513)

Prepare for the AWS Certified Data Engineer Associate (DEA-C01) exam with comprehensive practice questions and simulations. Master key concepts in data ingestion, transformation, storage, operations, and security. Track your progress and study offline to ace your certification.

**Highlights:** Comprehensive DEA-C01 exam content coverage, Hundreds of practice questions with explanations, Topic-wise quizzes for focused study, Timed exam simulations, Detailed progress tracking and analytics, Offline access to study materials

**Features:** macOS Compatibility

**In-app purchases:** none


### CDP Knowledge Test

[App page](https://appshunter.io/ios/app/cdp-knowledge-test/id6740606245)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $11.99 | per month |
| Lifetime version | $24.99 | one-time |


## Frequently asked questions

### Is AWS Data Engineer Prep Exam free?

AWS Data Engineer Prep Exam costs $5.99, with no in-app purchases.

### Is CDP Knowledge Test free?

CDP Knowledge Test is free to download, with in-app purchases available.

### Do AWS Data Engineer Prep Exam or CDP Knowledge Test have ads?

Neither AWS Data Engineer Prep Exam nor CDP Knowledge Test shows ads.

### Which is updated more often, AWS Data Engineer Prep Exam or CDP Knowledge Test?

AWS Data Engineer Prep Exam ships an update every 7 months, and CDP Knowledge Test every 3 months. Most recently, AWS Data Engineer Prep Exam was updated on September 13, 2026 and CDP Knowledge Test on September 10, 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.*