# Crys vs QM Simulator

Crys and QM Simulator are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Crys | QM Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/crys-cast/id6784123301/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | Free | — |
| Size | 8 MB | 29 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [子铭 叶](https://appshunter.io/developer/6784052907) | [际 郭](https://appshunter.io/developer/6797282134) |

## What reviewers say

### Crys

[App page](https://appshunter.io/ios/app/crys-cast/id6784123301)

This app allows users to view and analyze crystal structures locally on their mobile devices. It supports various file formats and offers tools for inspecting atoms, bonds, and unit cells, with features for generating simulated PXRD patterns and morphology previews.

**Highlights:** Local structure viewing, Supports CIF, XYZ, PDB, MOL, SDF, MOL2, RES files, Inspect atoms, bonds, unit cells, Display styles and scope control, Fullscreen and PXRD presentation modes, Simulated PXRD pattern generation, BFDH morphology preview

**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 Crys free?

Crys 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 Crys or QM Simulator have ads?

Neither Crys 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.*