# Gravity Courier vs Eye Test

The clearest difference is in-app purchases: Eye Test at none against Gravity Courier's 1. Eye Test also leads on iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Gravity Courier sells 1 one-off in-app purchase. Eye Test asks for nothing beyond the download.

## The numbers

| Metric | Gravity Courier | Eye Test |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | — |
| Size | 32 MB | 21 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jegeon Jung](https://appshunter.io/developer/1825889536) | [SEOKWON YANG](https://appshunter.io/developer/1863325487) |

## What reviewers say

### Gravity Courier

[App page](https://appshunter.io/ios/app/gravity-courier-orbit-puzzle/id6777101289)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고제거 | $1.99 | one-time |


### Eye Test

[App page](https://appshunter.io/ios/app/eye-test-slox/id6777143942)

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

**In-app purchases:** none


## Frequently asked questions

### Is Gravity Courier free?

Gravity Courier is free to download, with in-app purchases available.

### Is Eye Test free?

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

### Do Gravity Courier or Eye Test have ads?

Both Gravity Courier and Eye Test 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.*