# GemDetector App vs QM Simulator

The clearest difference is iOS requirement: GemDetector App at 15.1 against QM Simulator's 17.0. On price, ads, 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 | GemDetector App | QM Simulator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 23 MB | 29 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Viktoria Fiesinger](https://appshunter.io/developer/1893294360) | [际 郭](https://appshunter.io/developer/6797282134) |

## What reviewers say

### GemDetector App

[App page](https://appshunter.io/ios/app/gemdetector-app/id6762190481)

**Features:** macOS Compatibility

**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 GemDetector App free?

GemDetector App 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 GemDetector App or QM Simulator have ads?

Neither GemDetector App nor QM Simulator shows 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.*