# Learn ErLang | ErLangBook vs Learning Go

The clearest difference is price: Learning Go at Free against Learn ErLang | ErLangBook's $1.99. Learn ErLang | ErLangBook's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.0). On ads and device support there is nothing between them.

Learning Go is free to download; Learn ErLang | ErLangBook costs $1.99 up front. Learning Go sells 4 one-off in-app purchases. Learn ErLang | ErLangBook asks for nothing beyond the download.

## The numbers

| Metric | Learn ErLang | ErLangBook | Learning Go |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 41 MB | 144 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Muhammad Umair](https://appshunter.io/developer/1696049320) | [Airton Siqueira de Freitas](https://appshunter.io/developer/1809776051) |

## What reviewers say

### Learn ErLang | ErLangBook

[App page](https://appshunter.io/ios/app/learn-erlang-erlangbook/id6754662195)

**Features:** macOS Compatibility

**In-app purchases:** none


### Learning Go

[App page](https://appshunter.io/ios/app/learning-go/id6794719012)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full access | $1.99 | one-time |
| Full access discount | $1.99 | one-time |
| CERTIFICATE | $2.99 | one-time |
| FULL PASS ALL APPS | $17.99 | one-time |


## Frequently asked questions

### Is Learn ErLang | ErLangBook free?

Learn ErLang | ErLangBook costs $1.99, with no in-app purchases.

### Is Learning Go free?

Learning Go is free to download, with in-app purchases available.

### Do Learn ErLang | ErLangBook or Learning Go have ads?

Neither Learn ErLang | ErLangBook nor Learning Go 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.*