# Element OTG vs QM Simulator

The clearest difference is ads: QM Simulator at none against Element OTG's shown. Element OTG's advantage is iOS requirement (13.0 vs 17.0). On price, 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 | Element OTG | QM Simulator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 25 MB | 29 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Japality Limited](https://appshunter.io/developer/1574046707) | [际 郭](https://appshunter.io/developer/6797282134) |

## What reviewers say

### Element OTG

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

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

**In-app purchases:** none


### QM Simulator

[App page](https://appshunter.io/ios/app/qm-simulator-quantum-physics/id6809480339)

**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 QM Simulator free?

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

### Do Element OTG or QM Simulator have ads?

Element OTG shows ads; QM Simulator 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.*