# AWS Machine Learning Engineer vs CY0

The clearest difference is in-app purchases: CY0 at none against AWS Machine Learning Engineer's 2. AWS Machine Learning Engineer's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AWS Machine Learning Engineer sells 2 one-off in-app purchases. CY0 asks for nothing beyond the download.

AWS Machine Learning Engineer ships an update every 3 weeks, CY0 every 5 months. The most recent releases landed on November 5, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | AWS Machine Learning Engineer | CY0 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Size | 45 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EXAMCERT PTY LTD](https://appshunter.io/developer/1830664214) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### 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 |


### CY0

[App page](https://appshunter.io/ios/app/cy0-001-ai-security-exam-prep/id6761838697)

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

**In-app purchases:** none


## Frequently asked questions

### Is AWS Machine Learning Engineer free?

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

### Is CY0 free?

CY0 is free to download, with no in-app purchases.

### Do AWS Machine Learning Engineer or CY0 have ads?

Neither AWS Machine Learning Engineer nor CY0 shows ads.

### Which is updated more often, AWS Machine Learning Engineer or CY0?

AWS Machine Learning Engineer ships an update every 3 weeks, and CY0 every 5 months. Most recently, AWS Machine Learning Engineer was updated on November 5, 2026 and CY0 on October 28, 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.*