# Ventilator Training Alliance vs ROX Index

The clearest difference is ratings volume: Ventilator Training Alliance at 74 against ROX Index's 1. On price, rating, review sentiment and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Ventilator Training Alliance against 5.0 for ROX Index. That said, the two scores are not equally well evidenced: Ventilator Training Alliance has 74 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 93% of Ventilator Training Alliance's written reviews are positive against 100% of ROX Index's.

Ventilator Training Alliance ships an update fortnightly, ROX Index every 3 weeks. The most recent releases landed on October 20, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Ventilator Training Alliance | ROX Index |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (74 ratings)](https://appshunter.io/ios/app/ventilator-training-alliance/id1507082978/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rox-index/id1582208777/reviews)** |
| Number of ratings | **74** | 1 |
| Positive reviews | 93.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 87 MB | 10 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Allego, Inc.](https://appshunter.io/developer/640352525) | [Satish Deopujari](https://appshunter.io/developer/1180072702) |

## What reviewers say

### Ventilator Training Alliance

[App page](https://appshunter.io/ios/app/ventilator-training-alliance/id1507082978)

Access a comprehensive library of training materials and product information for medical professionals. This app offers free mobile access to how-to videos, manuals, and guides for critical ventilator equipment, developed in partnership with leading manufacturers.

**Highlights:** Multi-vendor training library, Product materials for medical professionals, How-to videos, Product manuals, Reference guides, Free mobile access

**In-app purchases:** none


### ROX Index

[App page](https://appshunter.io/ios/app/rox-index/id1582208777)

This medical app assists doctors and students in calculating the ROX index, a tool to predict the success or failure of High-Flow Nasal Cannula (HFNC) therapy, primarily studied in pneumonia patients. It simplifies the calculation using SpO2, FiO2, and Respiratory Rate.

**Highlights:** ROX index calculation, Predicts HFNC success/failure, Primarily for pneumonia patients, Uses SpO2, FiO2, and RR, Assists doctors and medical students

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ventilator Training Alliance free?

Ventilator Training Alliance is free to download, with no in-app purchases.

### Is ROX Index free?

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

### Which has better reviews, Ventilator Training Alliance or ROX Index?

ROX Index is rated higher. Ventilator Training Alliance averages 4.9 out of 5 from 74 ratings, while ROX Index averages 5.0 from 1 ratings.

### Do Ventilator Training Alliance or ROX Index have ads?

Neither Ventilator Training Alliance nor ROX Index shows ads.

### Which is updated more often, Ventilator Training Alliance or ROX Index?

Ventilator Training Alliance ships an update fortnightly, and ROX Index every 3 weeks. Most recently, Ventilator Training Alliance was updated on October 20, 2026 and ROX Index on October 30, 2026.

---

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