# Duke Idiomas vs Certificação Linux

The clearest difference is in-app purchases: Duke Idiomas at none against Certificação Linux's 3. Certificação Linux's advantage is device support and iOS requirement (13.0 vs 15.1). On price there is nothing between them.

Both are free to download. Certificação Linux sells 3 one-off in-app purchases. Duke Idiomas asks for nothing beyond the download.

## The numbers

| Metric | Duke Idiomas | Certificação Linux |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Size | 194 MB | 39 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Rabelo](https://appshunter.io/developer/1851701312) | [Uira Ribeiro](https://appshunter.io/developer/6778160711) |

## What reviewers say

### Duke Idiomas

[App page](https://appshunter.io/ios/app/duke-idiomas/id6759467408)

**In-app purchases:** none


### Certificação Linux

[App page](https://appshunter.io/ios/app/certificacao-linux/id6778160709)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Linux Essentials | $49.99 | one-time |
| Curso Linux LPIC-1 | $49.99 | one-time |
| Curso LPIC-2 | $49.99 | one-time |


## Frequently asked questions

### Is Duke Idiomas free?

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

### Is Certificação Linux free?

Certificação Linux is free to download, with in-app purchases available.

---

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