# iMolview vs Viseum

The clearest difference is price: Viseum at Free against iMolview's $0.99. iMolview's advantage is update cadence (every 2 months vs every 5 months) and iOS requirement (12.0 vs 15.5). On ads, in-app purchases and device support there is nothing between them.

Viseum 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, Viseum every 5 months. The most recent releases landed on October 18, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | iMolview | Viseum |
| --- | --- | --- |
| 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 5 months |
| Monetization | Free | — |
| Size | 55 MB | 228 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Molsoft](https://appshunter.io/developer/431002309) | [Aperion XR](https://appshunter.io/developer/1610174755) |

## 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


### Viseum

[App page](https://appshunter.io/ios/app/viseum-hertziana/id6445815599)

**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 Viseum free?

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

### Do iMolview or Viseum have ads?

Neither iMolview nor Viseum shows ads.

### Which is updated more often, iMolview or Viseum?

iMolview ships an update every 2 months, and Viseum every 5 months. Most recently, iMolview was updated on October 18, 2026 and Viseum on October 13, 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.*