# Element OTG vs ChemyLab

The clearest difference is ads: ChemyLab at none against Element OTG's shown. On price, in-app purchases, device support and iOS requirement 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 | Element OTG | ChemyLab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 25 MB | 26 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Japality Limited](https://appshunter.io/developer/1574046707) | [Cristi Citea](https://appshunter.io/developer/1425376244) |

## What reviewers say

### Element OTG

[App page](https://appshunter.io/ios/app/element-otg/id6749494404)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChemyLab

[App page](https://appshunter.io/ios/app/chemylab/id6779075108)

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

**In-app purchases:** none


## Frequently asked questions

### Is Element OTG free?

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

### Is ChemyLab free?

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

### Do Element OTG or ChemyLab have ads?

Element OTG shows ads; ChemyLab 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.*