# WebMO Molecule Editor vs Search PubChem

The clearest difference is rating: Search PubChem at 5.0 against WebMO Molecule Editor's 4.0. Search PubChem also leads on in-app purchases (none vs 2) and review sentiment (75% vs 60%). WebMO Molecule Editor's advantage is update cadence (every 3 months vs every 9 months) and ratings volume (40 vs 5). 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. Search PubChem asks for nothing beyond the download.

Search PubChem holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: WebMO Molecule Editor has 40 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 60% of WebMO Molecule Editor's written reviews are positive against 75% of Search PubChem's.

WebMO Molecule Editor ships an update every 3 months, Search PubChem every 9 months. The most recent releases landed on September 3, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | WebMO Molecule Editor | Search PubChem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (40 ratings)](https://appshunter.io/ios/app/webmo-molecule-editor/id797898095/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/search-pubchem/id1369742632/reviews)** |
| Number of ratings | **40** | 5 |
| Positive reviews | 60.4% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 9 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 17+ |
| Developer | [WebMO, LLC](https://appshunter.io/developer/797898098) | [Jae-Seung Lee](https://appshunter.io/developer/1146296876) |

## 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 |


### Search PubChem

[App page](https://appshunter.io/ios/app/search-pubchem/id1369742632)

Access and manage chemical compound data from the PubChem database. Search for over 111 million compounds, view molecular formulas, weights, and structures, and create and track custom solutions with detailed composition information.

**Highlights:** Search PubChem database, View molecular formula, weight, and structure, Store compound information, Create and manage custom solutions, Track solution composition in grams and moles, Display 3D compound structures, Share solution data via CSV

**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 Search PubChem free?

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

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

Search PubChem is rated higher. WebMO Molecule Editor averages 4.0 out of 5 from 40 ratings, while Search PubChem averages 5.0 from 5 ratings.

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

Neither WebMO Molecule Editor nor Search PubChem shows ads.

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

WebMO Molecule Editor ships an update every 3 months, and Search PubChem every 9 months. Most recently, WebMO Molecule Editor was updated on September 3, 2026 and Search PubChem on June 1, 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.*