# WebMO Molecule Editor vs Molecule Lab

The clearest difference is in-app purchases: Molecule Lab at none against WebMO Molecule Editor's 2. WebMO Molecule Editor's advantage is update cadence (every 3 months vs every 24 months) and review sentiment (60% vs 50%). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.0 for WebMO Molecule Editor against 4.0 for Molecule Lab. Both are backed by a comparable volume of ratings — 40 and 18 respectively. Written reviews are what separate them: 60% of WebMO Molecule Editor's written reviews are positive against 50% of Molecule Lab's.

WebMO Molecule Editor ships an update every 3 months, Molecule Lab every 24 months. The most recent releases landed on September 3, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | WebMO Molecule Editor | Molecule Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (40 ratings)](https://appshunter.io/ios/app/webmo-molecule-editor/id797898095/reviews)** | [4.0 (18 ratings)](https://appshunter.io/ios/app/molecule-lab/id1434237899/reviews) |
| Number of ratings | **40** | 18 |
| Positive reviews | **60.4% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 24 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 1 MB |
| Requires iOS | **12.0** | 13.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WebMO, LLC](https://appshunter.io/developer/797898098) | [Maxamix](https://appshunter.io/developer/667167982) |

## 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 |


### Molecule Lab

[App page](https://appshunter.io/ios/app/molecule-lab/id1434237899)

Create and view 3D molecular models with an intuitive editor. Supports various elements, bond types, and conformations, with undo/redo functionality. Share your creations easily via messaging and email.

**Highlights:** Build molecules in 3D, Supports oxygen, nitrogen, chlorine, carbon, hydrogen, Double and triple bond creation, Branching and rotation conformations, Undo, redo, and delete controls, Save and edit molecules, Share via text, email, and other services

**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 Molecule Lab free?

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

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

WebMO Molecule Editor is rated higher. WebMO Molecule Editor averages 4.0 out of 5 from 40 ratings, while Molecule Lab averages 4.0 from 18 ratings.

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

Neither WebMO Molecule Editor nor Molecule Lab shows ads.

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

WebMO Molecule Editor ships an update every 3 months, and Molecule Lab every 24 months. Most recently, WebMO Molecule Editor was updated on September 3, 2026 and Molecule Lab on August 25, 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.*