# KARR vs Knock at the window prank

The clearest difference is device support: KARR at 3 against Knock at the window prank's —. On price, in-app purchases 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 | KARR | Knock at the window prank |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Size | 37 MB | 9 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 4+ |
| Developer | [Manuel Meloni](https://appshunter.io/developer/1632593623) | [Maxim Rudyi](https://appshunter.io/developer/1784674766) |

## What reviewers say

### KARR

[App page](https://appshunter.io/ios/app/karr/id6599858081)

**Features:** macOS Compatibility

**In-app purchases:** none


### Knock at the window prank

[App page](https://appshunter.io/ios/app/knock-at-the-window-prank/id6751201513)

**In-app purchases:** none


## Frequently asked questions

### Is KARR free?

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

### Is Knock at the window prank free?

Knock at the window prank is free to download, with no in-app purchases.

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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.*