# Molecule Simulator vs 屏卫PRO

The clearest difference is update cadence: 屏卫PRO at every 4 days against Molecule Simulator's every 4 months. Molecule Simulator's advantage is iOS requirement (15.0 vs 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.

Molecule Simulator ships an update every 4 months, 屏卫PRO every 4 days. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Molecule Simulator | 屏卫PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (24 ratings)](https://appshunter.io/ios/app/molecule-simulator/id1538249996/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 8 MB | 10 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [仕清 刘](https://appshunter.io/developer/1531464103) | [Shenzhen Zhengyilong Technology Co.,Ltd](https://appshunter.io/developer/932771087) |

## What reviewers say

### Molecule Simulator

[App page](https://appshunter.io/ios/app/molecule-simulator/id1538249996)

Visualize the 3D structures of molecules using data from PubChem and Protein Data Bank. Explore molecules in various viewing modes and download an extensive library of compounds.

**Highlights:** 3D molecular visualization, Space filling mode, Ball-and-stick mode, Data from PubChem, Data from Protein Data Bank, Downloadable molecule library

**Features:** macOS Compatibility

**In-app purchases:** none


### 屏卫PRO

[App page](https://appshunter.io/ios/app/pro/id6812643787)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Molecule Simulator free?

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

### Is 屏卫PRO free?

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

### Do Molecule Simulator or 屏卫PRO have ads?

Neither Molecule Simulator nor 屏卫PRO shows ads.

### Which is updated more often, Molecule Simulator or 屏卫PRO?

Molecule Simulator ships an update every 4 months, and 屏卫PRO every 4 days. Most recently, Molecule Simulator was updated on October 8, 2026 and 屏卫PRO on October 13, 2026.

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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.*