# Referee learning app vs FlagLine Offside Lab

The clearest difference is ads: FlagLine Offside Lab at none against Referee learning app's shown. Referee learning app's advantage is iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Referee learning app | FlagLine Offside Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Daily |
| Size | 49 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Micheal Aro](https://appshunter.io/developer/1797890472) | [Valentin Postolach](https://appshunter.io/developer/6786063395) |

## What reviewers say

### Referee learning app

[App page](https://appshunter.io/ios/app/referee-learning-app/id6760876742)

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

**In-app purchases:** none


### FlagLine Offside Lab

[App page](https://appshunter.io/ios/app/flagline-offside-lab/id6802378403)

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

**In-app purchases:** none


## Frequently asked questions

### Is Referee learning app free?

Referee learning app is free to download, with no in-app purchases.

### Is FlagLine Offside Lab free?

FlagLine Offside Lab is free to download, with no in-app purchases.

### Do Referee learning app or FlagLine Offside Lab have ads?

Referee learning app shows ads; FlagLine Offside Lab 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.*