# How {Things} Work vs Merchant Navy Aptitude Test

The clearest difference is in-app purchases: How {Things} Work at none against Merchant Navy Aptitude Test's 2. How {Things} Work also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Merchant Navy Aptitude Test sells 2 in-app purchases, starting at $4.99 per 7 days. How {Things} Work asks for nothing beyond the download.

## The numbers

| Metric | How {Things} Work | Merchant Navy Aptitude Test |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 41 MB | 42 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ccburns.me](https://appshunter.io/developer/444074938) | [Can Devecioglu](https://appshunter.io/developer/1727949528) |

## What reviewers say

### How {Things} Work

[App page](https://appshunter.io/ios/app/how-things-work/id6767944916)

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

**In-app purchases:** none


### Merchant Navy Aptitude Test

[App page](https://appshunter.io/ios/app/merchant-navy-aptitude-test/id6812508809)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is How {Things} Work free?

How {Things} Work is free to download, with no in-app purchases.

### Is Merchant Navy Aptitude Test free?

Merchant Navy Aptitude Test is free to download, with in-app purchases available.

### Do How {Things} Work or Merchant Navy Aptitude Test have ads?

Neither How {Things} Work nor Merchant Navy Aptitude Test shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*