# Knife Up Challenge vs Helix Runner!

The clearest difference is ads: Knife Up Challenge at none against Helix Runner!'s shown. Knife Up Challenge also leads on iOS requirement (9.0 vs 12.0). 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 | Knife Up Challenge | Helix Runner! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 30 months |
| Size | 27 MB | 49 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Javier Del Alcazar Marti](https://appshunter.io/developer/1239782546) | [Marco Andreotti](https://appshunter.io/developer/1514019597) |

## What reviewers say

### Knife Up Challenge

[App page](https://appshunter.io/ios/app/knife-up-challenge/id1358683261)

**Features:** macOS Compatibility

**In-app purchases:** none


### Helix Runner!

[App page](https://appshunter.io/ios/app/helix-runner/id1567018450)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Knife Up Challenge free?

Knife Up Challenge is free to download, with no in-app purchases.

### Is Helix Runner! free?

Helix Runner! is free to download, with no in-app purchases.

### Do Knife Up Challenge or Helix Runner! have ads?

Helix Runner! shows ads; Knife Up Challenge 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.*