# ProteinViewerApp vs PDB Viewer

The clearest difference is price: PDB Viewer at Free against ProteinViewerApp's $4.99. ProteinViewerApp's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

PDB Viewer is free to download; ProteinViewerApp costs $4.99 up front. PDB Viewer sells 1 one-off in-app purchase. ProteinViewerApp asks for nothing beyond the download.

ProteinViewerApp ships an update fortnightly, PDB Viewer monthly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ProteinViewerApp | PDB Viewer |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/proteinviewerapp/id6752284307/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Paid | — |
| Size | 8 MB | 2 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [JONG HYUN LEE](https://appshunter.io/developer/1739037759) | [Qvyshift LLC](https://appshunter.io/developer/1536442361) |

## What reviewers say

### ProteinViewerApp

[App page](https://appshunter.io/ios/app/proteinviewerapp/id6752284307)

Explore and learn about protein structures in 3D. This tool offers interactive visualization, educational modes, and direct access to protein data for students and researchers.

**Highlights:** 3D protein visualization, Step-by-step structural insights, Educational modes by category, Multiple rendering styles, Direct PDB integration, Clear terminology explanations

**Features:** macOS Compatibility

**In-app purchases:** none


### PDB Viewer

[App page](https://appshunter.io/ios/app/pdb-viewer-3d-molecules/id6777468488)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDB Viewer Pro | $9.99 | one-time |


## Frequently asked questions

### Is ProteinViewerApp free?

ProteinViewerApp costs $4.99, with no in-app purchases.

### Is PDB Viewer free?

PDB Viewer is free to download, with in-app purchases available.

### Do ProteinViewerApp or PDB Viewer have ads?

Neither ProteinViewerApp nor PDB Viewer shows ads.

### Which is updated more often, ProteinViewerApp or PDB Viewer?

ProteinViewerApp ships an update fortnightly, and PDB Viewer monthly. Most recently, ProteinViewerApp was updated on October 24, 2026 and PDB Viewer on October 16, 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.*