# 化学 vs Molecular Model Simulator

The clearest difference is review sentiment: 化学 at 100% against Molecular Model Simulator's 0%. 化学 also leads on in-app purchases (none vs 1) and ads (none vs shown). Molecular Model Simulator's advantage is update cadence (every 10 days vs every 13 months) and iOS requirement (11.0 vs 13.0). On price and device support there is nothing between them.

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

化学 ships an update every 13 months, Molecular Model Simulator every 10 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 化学 | Molecular Model Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 84 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [楠 唐](https://appshunter.io/developer/1603049157) | [博 彭](https://appshunter.io/developer/1293268076) |

## What reviewers say

### 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


### Molecular Model Simulator

[App page](https://appshunter.io/ios/app/molecular-model-simulator/id6459994670)

Visualize and interact with complex 3D molecular structures. Explore atomic arrangements, chemical bonds, and create custom compounds. Ideal for students, educators, and chemistry enthusiasts.

**Highlights:** Dynamic 3D molecular modeling, Interactive exploration (zoom, rotate, pan), Realistic atomic bonding visualization, Custom compound creation, Intuitive user interface, Educational and engaging content

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UpgradeToPro | $0.99 | one-time |


## Frequently asked questions

### Is 化学 free?

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

### Is Molecular Model Simulator free?

Molecular Model Simulator is free to download, with in-app purchases available.

### Do 化学 or Molecular Model Simulator have ads?

Molecular Model Simulator shows ads; 化学 does not.

### Which is updated more often, 化学 or Molecular Model Simulator?

化学 ships an update every 13 months, and Molecular Model Simulator every 10 days. Most recently, 化学 was updated on October 24, 2026 and Molecular Model Simulator on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*