# 3D_NA vs Protein Viewer Pro

The clearest difference is update cadence: 3D_NA at daily against Protein Viewer Pro's every 2 weeks. 3D_NA also leads on iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

3D_NA ships an update daily, Protein Viewer Pro every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 3D_NA | Protein Viewer Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Size | 135 MB | 27 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National University of Singapore](https://appshunter.io/developer/412284566) | [Heebok Lee](https://appshunter.io/developer/1855773499) |

## What reviewers say

### 3D_NA

[App page](https://appshunter.io/ios/app/3d-na/id1665508891)

**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 3D_NA free?

3D_NA is free to download, with no in-app purchases.

### Is Protein Viewer Pro free?

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

### Do 3D_NA or Protein Viewer Pro have ads?

Neither 3D_NA nor Protein Viewer Pro shows ads.

### Which is updated more often, 3D_NA or Protein Viewer Pro?

3D_NA ships an update daily, and Protein Viewer Pro every 2 weeks. Most recently, 3D_NA was updated on November 3, 2026 and Protein Viewer Pro on November 4, 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.*