# learn javascript quiz vs Learn R Programming (pro)

The clearest difference is price: learn javascript quiz at Free against Learn R Programming (pro)'s $1.99. Learn R Programming (pro)'s advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

learn javascript quiz is free to download; Learn R Programming (pro) costs $1.99 up front. learn javascript quiz sells 1 one-off in-app purchase. Learn R Programming (pro) asks for nothing beyond the download.

## The numbers

| Metric | learn javascript quiz | Learn R Programming (pro) |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 26 MB | 41 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Taehyeok Lee](https://appshunter.io/developer/1712479716) | [Muhammad Umair](https://appshunter.io/developer/1696049320) |

## What reviewers say

### learn javascript quiz

[App page](https://appshunter.io/ios/app/learn-javascript-quiz/id6744698868)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| javascript quiz premium | $1.99 | one-time |


### Learn R Programming (pro)

[App page](https://appshunter.io/ios/app/learn-r-programming-pro/id6755062754)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is learn javascript quiz free?

learn javascript quiz is free to download, with in-app purchases available.

### Is Learn R Programming (pro) free?

Learn R Programming (pro) costs $1.99, with no in-app purchases.

### Do learn javascript quiz or Learn R Programming (pro) have ads?

Neither learn javascript quiz nor Learn R Programming (pro) shows ads.

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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.*