# Key Sync™ vs EO2GO Environmental

The clearest difference is device support: EO2GO Environmental at 3 against Key Sync™'s —. Key Sync™'s advantage is iOS requirement (11.0 vs 15.6). On price and in-app purchases 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 | Key Sync™ | EO2GO Environmental |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 11 days |
| Size | 67 MB | 6 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michel Sales Company](https://appshunter.io/developer/1883582701) | [Hydramo B.V.](https://appshunter.io/developer/1896682111) |

## What reviewers say

### Key Sync™

[App page](https://appshunter.io/ios/app/key-sync/id6760275098)

**In-app purchases:** none


### EO2GO Environmental

[App page](https://appshunter.io/ios/app/eo2go-environmental/id6769722087)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Key Sync™ free?

Key Sync™ is free to download, with no in-app purchases.

### Is EO2GO Environmental free?

EO2GO Environmental 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.*