# WebMO Molecule Editor vs Chemistry Model Kit

The clearest difference is in-app purchases: Chemistry Model Kit at none against WebMO Molecule Editor's 2. Chemistry Model Kit also leads on update cadence (every 4 days vs every 3 months) and iOS requirement (8.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. WebMO Molecule Editor sells 2 one-off in-app purchases. Chemistry Model Kit asks for nothing beyond the download.

WebMO Molecule Editor ships an update every 3 months, Chemistry Model Kit every 4 days. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | WebMO Molecule Editor | Chemistry Model Kit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (40 ratings)](https://appshunter.io/ios/app/webmo-molecule-editor/id797898095/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 60.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 154 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WebMO, LLC](https://appshunter.io/developer/797898098) | [Cheryl Montgomery](https://appshunter.io/developer/611176285) |

## What reviewers say

### WebMO Molecule Editor

[App page](https://appshunter.io/ios/app/webmo-molecule-editor/id797898095)

Create and explore 3D molecular structures, visualize chemical properties, and access extensive chemical databases. This tool is ideal for students and educators needing on-the-go access to molecular information and computational chemistry resources.

**Highlights:** 3D molecular editor, Structure optimization, Orbital and symmetry visualization, Chemical database lookup, Spectra visualization, High-resolution image capture, Computational chemistry program integration

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WebMO Premium for paid users | Free | one-time |
| WebMO Premium | $4.99 | one-time |


### Chemistry Model Kit

[App page](https://appshunter.io/ios/app/chemistry-model-kit-vsepr-3d/id1165464881)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WebMO Molecule Editor free?

WebMO Molecule Editor is free to download, with in-app purchases available.

### Is Chemistry Model Kit free?

Chemistry Model Kit is free to download, with no in-app purchases.

### Do WebMO Molecule Editor or Chemistry Model Kit have ads?

Neither WebMO Molecule Editor nor Chemistry Model Kit shows ads.

### Which is updated more often, WebMO Molecule Editor or Chemistry Model Kit?

WebMO Molecule Editor ships an update every 3 months, and Chemistry Model Kit every 4 days. Most recently, WebMO Molecule Editor was updated on October 23, 2026 and Chemistry Model Kit on October 14, 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.*