# Obstacle Outrun vs Zero Gravity Birds

The clearest difference is iOS requirement: Zero Gravity Birds at 13.0 against Obstacle Outrun's 15.0. On price, ads, 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 | Obstacle Outrun | Zero Gravity Birds |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Daily | — |
| Size | 255 MB | 113 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hero Code LLC](https://appshunter.io/developer/1670204754) | [Soham Khunt](https://appshunter.io/developer/1532009634) |

## What reviewers say

### Obstacle Outrun

[App page](https://appshunter.io/ios/app/obstacle-outrun/id6496854016)

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

**In-app purchases:** none


### Zero Gravity Birds

[App page](https://appshunter.io/ios/app/zero-gravity-birds/id6749266946)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Obstacle Outrun free?

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

### Is Zero Gravity Birds free?

Zero Gravity Birds is free to download, with no in-app purchases.

### Do Obstacle Outrun or Zero Gravity Birds have ads?

Both Obstacle Outrun and Zero Gravity Birds show ads.

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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.*