# Protein Sequence Viewer vs FoldVision

The clearest difference is ads: FoldVision at none against Protein Sequence Viewer's shown. Protein Sequence Viewer's advantage is iOS requirement (13.0 vs 26.0). On price, update cadence, 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.

Protein Sequence Viewer ships an update every 2 days, FoldVision daily. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Protein Sequence Viewer | FoldVision |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/foldvision/id6773432780/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | **Daily** |
| Monetization | — | Free |
| Size | 25 MB | 22 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Kazunari Sasaki](https://appshunter.io/developer/1857860050) | [Scot Federman](https://appshunter.io/developer/1602583434) |

## What reviewers say

### Protein Sequence Viewer

[App page](https://appshunter.io/ios/app/protein-sequence-viewer/id6758012449)

**Features:** macOS Compatibility

**In-app purchases:** none


### FoldVision

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

Visualize, analyze, and understand complex protein structures in interactive 3D. Explore detailed annotations, compare different structures, and generate plain-language explanations of protein functions. Export your work as images, videos, or 3D models.

**Highlights:** Interactive 3D protein rendering, Searchable Protein Data Bank, Plain-language protein explanations, Structure comparison tools, Detailed annotations and sequence view, Nucleic acid helix building, Exportable images, videos, and 3D models

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Protein Sequence Viewer free?

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

### Is FoldVision free?

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

### Do Protein Sequence Viewer or FoldVision have ads?

Protein Sequence Viewer shows ads; FoldVision does not.

### Which is updated more often, Protein Sequence Viewer or FoldVision?

Protein Sequence Viewer ships an update every 2 days, and FoldVision daily. Most recently, Protein Sequence Viewer was updated on November 9, 2026 and FoldVision on October 31, 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.*