# Minus vs Referee learning app

The clearest difference is ads: Minus at none against Referee learning app's shown. On price, in-app purchases, device support and iOS requirement 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 | Minus | Referee learning app |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | — |
| Size | 0 MB | 49 MB |
| Requires iOS | 14.3 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Hohlfeld](https://appshunter.io/developer/1456349163) | [Micheal Aro](https://appshunter.io/developer/1797890472) |

## What reviewers say

### Minus

[App page](https://appshunter.io/ios/app/minus-calculator/id1547136719)

**Features:** macOS Compatibility

**In-app purchases:** none


### Referee learning app

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Minus free?

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

### Is Referee learning app free?

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

### Do Minus or Referee learning app have ads?

Referee learning app shows ads; Minus 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.*