# ExpiCHO vs Protein Viewer Pro

The clearest difference is iOS requirement: ExpiCHO at 8.0 against Protein Viewer Pro's 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.

## The numbers

| Metric | ExpiCHO | Protein Viewer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/expicho-down-vr-game/id1440516363/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | Free | — |
| Size | 459 MB | 27 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thermo Fisher Scientific](https://appshunter.io/developer/407517076) | [Heebok Lee](https://appshunter.io/developer/1855773499) |

## What reviewers say

### ExpiCHO

[App page](https://appshunter.io/ios/app/expicho-down-vr-game/id1440516363)

This virtual reality game simulates key steps of a protein expression protocol, including cell passaging, transfecting, and shaking. Earn points by successfully completing these steps to optimize protein yield, aiming for up to 3 g/L. Experience an immersive lab environment in VR or interact via touch on mobile devices.

**Highlights:** Virtual reality simulation, Protein yield optimization, Cell passaging, transfecting, and shaking, Gaze control interaction, Touchscreen interaction, 360-degree immersive lab view

**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 ExpiCHO free?

ExpiCHO 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 ExpiCHO or Protein Viewer Pro have ads?

Neither ExpiCHO nor Protein Viewer Pro shows ads.

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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.*