# AWS Data Engineer Exam Prep vs AWS Machine Learning Engineer

The clearest difference is ads: AWS Machine Learning Engineer at none against AWS Data Engineer Exam Prep's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. AWS Data Engineer Exam Prep sells 3 in-app purchases, starting at $1.99 per 7 days and AWS Machine Learning Engineer sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

AWS Data Engineer Exam Prep ships an update monthly, AWS Machine Learning Engineer every 3 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | AWS Data Engineer Exam Prep | AWS Machine Learning Engineer |
| --- | --- | --- |
| 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 | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 84 MB | 45 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Koray Salman](https://appshunter.io/developer/1629681839) | [EXAMCERT PTY LTD](https://appshunter.io/developer/1830664214) |

## What reviewers say

### AWS Data Engineer Exam Prep

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

Prepare for the AWS Certified Data Engineer exam with extensive practice questions and full-length exams. Master data ingestion, transformation, storage, operations, and security on AWS. Track your progress and review detailed explanations to solidify your knowledge.

**Highlights:** 1,950 original practice questions, 30 full-length practice exams, Detailed performance reports, Instant feedback and explanations, Save and revisit questions, Progress tracking across exam sets, Study reminders

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription - Weekly | $1.99 | per 7 days |
| Subscription - Monthly | $5.99 | per month |
| Subscription - Yearly | $29.99 | per year |


### AWS Machine Learning Engineer

[App page](https://appshunter.io/ios/app/aws-machine-learning-engineer/id6757525036)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 200 AI Credits | $1.99 | one-time |
| Unlock Premium | $5.99 | one-time |


## Frequently asked questions

### Is AWS Data Engineer Exam Prep free?

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

### Is AWS Machine Learning Engineer free?

AWS Machine Learning Engineer is free to download, with in-app purchases available.

### Do AWS Data Engineer Exam Prep or AWS Machine Learning Engineer have ads?

AWS Data Engineer Exam Prep shows ads; AWS Machine Learning Engineer does not.

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

AWS Data Engineer Exam Prep ships an update monthly, and AWS Machine Learning Engineer every 3 weeks. Most recently, AWS Data Engineer Exam Prep was updated on November 8, 2026 and AWS Machine Learning Engineer on November 5, 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.*