# Law 18 vs Concacaf Refereeing

The clearest difference is in-app purchases: Concacaf Refereeing at none against Law 18's 2. Concacaf Refereeing also leads on ads (none vs shown) and iOS requirement (16.4 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Law 18 sells 2 in-app purchases, starting at $1.99 per month. Concacaf Refereeing asks for nothing beyond the download.

## The numbers

| Metric | Law 18 | Concacaf Refereeing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/law-18/id6759931764/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 133 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 17+ |
| Developer | [Mattas.net Ltd](https://appshunter.io/developer/1881712373) | [Algo Dynamics Srl](https://appshunter.io/developer/1591795367) |

## What reviewers say

### Law 18

[App page](https://appshunter.io/ios/app/law-18/id6759931764)

Master soccer's Laws of the Game with this quiz-based study app. Focus on specific laws, practice game scenarios, and track your progress with a spaced repetition algorithm. Optional modules cover US Soccer and specialized topics like VAR.

**Highlights:** Quiz-based study of Laws of the Game, Study by Law or Quick Quiz, Game scenario testing, Spaced repetition algorithm, Progress tracking by law, Optional US Soccer modules, Offline access

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | per month |
| Remove Ads | $14.99 | per year |


### Concacaf Refereeing

[App page](https://appshunter.io/ios/app/concacaf-refereeing/id6765727229)

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

**In-app purchases:** none


## Frequently asked questions

### Is Law 18 free?

Law 18 is free to download, with in-app purchases available.

### Is Concacaf Refereeing free?

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

### Do Law 18 or Concacaf Refereeing have ads?

Law 18 shows ads; Concacaf Refereeing does not.

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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.*