# WebMO Molecule Editor vs MoleculeSketch iP

The clearest difference is rating: MoleculeSketch iP at 4.5 against WebMO Molecule Editor's 4.0. WebMO Molecule Editor's advantage is ratings volume (40 vs 4) and review sentiment (60% vs 50%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. WebMO Molecule Editor sells 2 one-off in-app purchases and MoleculeSketch iP sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

MoleculeSketch iP holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: WebMO Molecule Editor has 40 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 60% of WebMO Molecule Editor's written reviews are positive against 50% of MoleculeSketch iP's, so the app with the better star average is not the one people write more warmly about.

WebMO Molecule Editor ships an update every 3 months, MoleculeSketch iP every 2 months. The most recent releases landed on October 15, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | WebMO Molecule Editor | MoleculeSketch iP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (40 ratings)](https://appshunter.io/ios/app/webmo-molecule-editor/id797898095/reviews) | **[4.5 (4 ratings)](https://appshunter.io/ios/app/moleculesketch-ip/id1281284737/reviews)** |
| Number of ratings | **40** | 4 |
| Positive reviews | **60.4% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 12 MB | 59 MB |
| Requires iOS | **12.0** | 13 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [WebMO, LLC](https://appshunter.io/developer/797898098) | [Stefan Dolder](https://appshunter.io/developer/942173209) |

## 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 |


### MoleculeSketch iP

[App page](https://appshunter.io/ios/app/moleculesketch-ip/id1281284737)

Easily draw chemical formulas and reactions with this intuitive application. It offers features like adding atoms, bonds, and functional groups, with advanced options available through an in-app purchase. Share your creations or import existing structures.

**Highlights:** Draw atoms and bonds, Select various bond types, Add functional groups, Show missing hydrogen atoms, Calculate molecular mass, Import mol/sdf files, Copy, paste, and cut drawings

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $1.99 | one-time |


## Frequently asked questions

### Is WebMO Molecule Editor free?

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

### Is MoleculeSketch iP free?

MoleculeSketch iP is free to download, with in-app purchases available.

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

MoleculeSketch iP is rated higher. WebMO Molecule Editor averages 4.0 out of 5 from 40 ratings, while MoleculeSketch iP averages 4.5 from 4 ratings.

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

Neither WebMO Molecule Editor nor MoleculeSketch iP shows ads.

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

WebMO Molecule Editor ships an update every 3 months, and MoleculeSketch iP every 2 months. Most recently, WebMO Molecule Editor was updated on October 15, 2026 and MoleculeSketch iP on September 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.*