# Molecule Simulator vs 化学

The clearest difference is update cadence: Molecule Simulator at every 4 months against 化学's every 13 months. 化学's advantage is iOS requirement (13.0 vs 15.0). On price, review sentiment, ads and in-app purchases 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, 化学 every 13 months. The most recent releases landed on September 21, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Molecule Simulator | 化学 |
| --- | --- | --- |
| 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 | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 13 months |
| Monetization | Free | Free |
| Size | 8 MB | 12 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [仕清 刘](https://appshunter.io/developer/1531464103) | [楠 唐](https://appshunter.io/developer/1603049157) |

## 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


### 化学

[App page](https://appshunter.io/ios/app/id1639863850)

This utility app provides essential chemistry tools like a periodic table, solubility chart, and molar mass calculator. It allows users to add personal notes and offers convenient viewing options for tables. Contact the developer for feedback or suggestions.

**Highlights:** Periodic table, Solubility chart, Molar mass calculator, Add personal notes, Fixed header and column for tables

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

**In-app purchases:** none


## Frequently asked questions

### Is Molecule Simulator free?

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

### Is 化学 free?

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

### Do Molecule Simulator or 化学 have ads?

Neither Molecule Simulator nor 化学 shows ads.

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

Molecule Simulator ships an update every 4 months, and 化学 every 13 months. Most recently, Molecule Simulator was updated on September 21, 2026 and 化学 on August 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.*