# WebMO Molecule Editor vs Perse Visualizer

The clearest difference is rating: Perse Visualizer at 5.0 against WebMO Molecule Editor's 4.0. Perse Visualizer also leads on in-app purchases (none vs 2). WebMO Molecule Editor's advantage is ads (none vs shown) and review sentiment (60% vs 50%). On price, update cadence, device support and iOS requirement there is nothing between them.

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

Perse Visualizer 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 7, 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 Perse Visualizer'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, Perse Visualizer every 2 months. The most recent releases landed on September 3, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | WebMO Molecule Editor | Perse Visualizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (40 ratings)](https://appshunter.io/ios/app/webmo-molecule-editor/id797898095/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/perse-visualizer/id1476999836/reviews)** |
| Number of ratings | **40** | 7 |
| Positive reviews | **60.4% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 12 MB | 24 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WebMO, LLC](https://appshunter.io/developer/797898098) | [Dylan Riffle](https://appshunter.io/developer/1142744409) |

## 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 |


### Perse Visualizer

[App page](https://appshunter.io/ios/app/perse-visualizer/id1476999836)

Visualize protein structures on your mobile device. Search the protein data bank by name or ID and display them in various styles like cartoon or ball and stick. Ideal for biology students and researchers.

**Highlights:** Protein visualization, Search by name or ID, Multiple display styles, Access to protein data bank, Educational tool

**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 Perse Visualizer free?

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

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

Perse Visualizer is rated higher. WebMO Molecule Editor averages 4.0 out of 5 from 40 ratings, while Perse Visualizer averages 5.0 from 7 ratings.

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

Perse Visualizer shows ads; WebMO Molecule Editor does not.

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

WebMO Molecule Editor ships an update every 3 months, and Perse Visualizer every 2 months. Most recently, WebMO Molecule Editor was updated on September 3, 2026 and Perse Visualizer on September 9, 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.*