# Pixel Evolution Lab vs eyeStudy

The clearest difference is in-app purchases: eyeStudy at none against Pixel Evolution Lab's 1. eyeStudy also leads on iOS requirement (13.0 vs 16.0). Pixel Evolution Lab's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Pixel Evolution Lab sells 1 one-off in-app purchase. eyeStudy asks for nothing beyond the download.

## The numbers

| Metric | Pixel Evolution Lab | eyeStudy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | — |
| Size | 7 MB | 29 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Hergert](https://appshunter.io/developer/1861706247) | [Hoang Harry Tran](https://appshunter.io/developer/1444361234) |

## What reviewers say

### Pixel Evolution Lab

[App page](https://appshunter.io/ios/app/pixel-evolution-lab/id6759259445)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pixel Evolution  Pro Upgrade | $1.99 | one-time |


### eyeStudy

[App page](https://appshunter.io/ios/app/eyestudy/id6761190625)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pixel Evolution Lab free?

Pixel Evolution Lab is free to download, with in-app purchases available.

### Is eyeStudy free?

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

### Do Pixel Evolution Lab or eyeStudy have ads?

eyeStudy shows ads; Pixel Evolution Lab 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.*