# Molecule vs WebMO Molecule Editor

The clearest difference is in-app purchases: Molecule at none against WebMO Molecule Editor's 2. Molecule also leads on review sentiment (76% vs 60%) and iOS requirement (7.0 vs 12.0). WebMO Molecule Editor's advantage is ratings volume (40 vs 10). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.0 for Molecule against 4.0 for WebMO Molecule Editor. Both are backed by a comparable volume of ratings — 10 and 40 respectively. Written reviews are what separate them: 76% of Molecule's written reviews are positive against 60% of WebMO Molecule Editor's.

Molecule ships an update every 4 months, WebMO Molecule Editor every 3 months. The most recent releases landed on August 30, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Molecule | WebMO Molecule Editor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (10 ratings)](https://appshunter.io/ios/app/molecule/id797331776/reviews) | **[4.0 (40 ratings)](https://appshunter.io/ios/app/webmo-molecule-editor/id797898095/reviews)** |
| Number of ratings | 10 | **40** |
| Positive reviews | **76.2% of reviews** | 60.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 12 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kirill Blinov](https://appshunter.io/developer/630833420) | [WebMO, LLC](https://appshunter.io/developer/797898098) |

## What reviewers say

### Molecule

[App page](https://appshunter.io/ios/app/molecule/id797331776)

This app allows users to create and share chemical structures with ease. It calculates molecular formula, weight, and elemental composition in real-time as you draw. Ideal for students and researchers needing a simple tool for molecular visualization.

**Highlights:** Draw chemical structures, Share structures, Calculate MF, MW, Monoisotopic Mass, Calculate Elemental Composition, Interactive calculations, Modern interface

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Molecule free?

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

### Is WebMO Molecule Editor free?

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

### Which has better reviews, Molecule or WebMO Molecule Editor?

WebMO Molecule Editor is rated higher. Molecule averages 4.0 out of 5 from 10 ratings, while WebMO Molecule Editor averages 4.0 from 40 ratings.

### Do Molecule or WebMO Molecule Editor have ads?

Neither Molecule nor WebMO Molecule Editor shows ads.

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

Molecule ships an update every 4 months, and WebMO Molecule Editor every 3 months. Most recently, Molecule was updated on August 30, 2026 and WebMO Molecule Editor on September 3, 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.*