# FoldVision vs PDB Viewer

The clearest difference is in-app purchases: FoldVision at none against PDB Viewer's 1. FoldVision also leads on update cadence (daily vs monthly). PDB Viewer's advantage is iOS requirement (16.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. PDB Viewer sells 1 one-off in-app purchase. FoldVision asks for nothing beyond the download.

FoldVision ships an update daily, PDB Viewer monthly. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | FoldVision | PDB Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Monthly |
| Size | 22 MB | 2 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | **iPhone, iPad, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Scot Federman](https://appshunter.io/developer/1602583434) | [Qvyshift LLC](https://appshunter.io/developer/1536442361) |

## What reviewers say

### FoldVision

[App page](https://appshunter.io/ios/app/foldvision/id6773432780)

**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 FoldVision free?

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

### Is PDB Viewer free?

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

### Do FoldVision or PDB Viewer have ads?

Neither FoldVision nor PDB Viewer shows ads.

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

FoldVision ships an update daily, and PDB Viewer monthly. Most recently, FoldVision was updated on October 2, 2026 and PDB Viewer on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*