# Molecule Simulator vs ChemPlay

The clearest difference is in-app purchases: Molecule Simulator at none against ChemPlay's 1. Molecule Simulator also leads on update cadence (every 4 months vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChemPlay sells 1 one-off in-app purchase. Molecule Simulator asks for nothing beyond the download.

Molecule Simulator ships an update every 4 months, ChemPlay every 12 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Molecule Simulator | ChemPlay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (26 ratings)](https://appshunter.io/ios/app/molecule-simulator/id1538249996/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | Free | — |
| Size | 8 MB | 2 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [仕清 刘](https://appshunter.io/developer/1531464103) | [亚军 胡](https://appshunter.io/developer/1724305749) |

## 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


### ChemPlay

[App page](https://appshunter.io/ios/app/chemplay/id6475630706)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 请作者买本教辅书 | $0.99 | one-time |


## Frequently asked questions

### Is Molecule Simulator free?

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

### Is ChemPlay free?

ChemPlay is free to download, with in-app purchases available.

### Do Molecule Simulator or ChemPlay have ads?

Neither Molecule Simulator nor ChemPlay shows ads.

### Which is updated more often, Molecule Simulator or ChemPlay?

Molecule Simulator ships an update every 4 months, and ChemPlay every 12 months. Most recently, Molecule Simulator was updated on October 24, 2026 and ChemPlay on October 19, 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.*