# iMolview vs Protein Viewer Pro

The clearest difference is price: Protein Viewer Pro at Free against iMolview's $0.99. Protein Viewer Pro also leads on update cadence (every 2 weeks vs every 2 months). iMolview's advantage is iOS requirement (12.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

Protein Viewer Pro is free to download; iMolview costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iMolview ships an update every 2 months, Protein Viewer Pro every 2 weeks. The most recent releases landed on October 22, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | iMolview | Protein Viewer Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.6 (13 ratings)](https://appshunter.io/ios/app/imolview/id431002306/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 78.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 55 MB | 27 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Molsoft](https://appshunter.io/developer/431002309) | [Heebok Lee](https://appshunter.io/developer/1855773499) |

## What reviewers say

### iMolview

[App page](https://appshunter.io/ios/app/imolview/id431002306)

Explore biological molecules in 3D. View proteins, DNA, and drug structures from major databases. Customize representations, select specific elements, and analyze molecular interactions. Sync your own files and save scenes for later.

**Highlights:** 3D molecular visualization, Browse PDB, DrugBank, Pubchem, Customizable representations, Individual element coloring, Neighbor analysis, Electron density map contouring, Scene saving and management

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Protein Viewer Pro

[App page](https://appshunter.io/ios/app/protein-viewer-pro/id6755710571)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iMolview free?

iMolview costs $0.99, with no in-app purchases.

### Is Protein Viewer Pro free?

Protein Viewer Pro is free to download, with no in-app purchases.

### Do iMolview or Protein Viewer Pro have ads?

Neither iMolview nor Protein Viewer Pro shows ads.

### Which is updated more often, iMolview or Protein Viewer Pro?

iMolview ships an update every 2 months, and Protein Viewer Pro every 2 weeks. Most recently, iMolview was updated on October 22, 2026 and Protein Viewer Pro on October 15, 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.*