# ROX Index

> Medical calculator for ROX index to predict HFNC success in pneumonia patients. (iPhone/iPad app by Satish Deopujari.)

- Source: https://appshunter.io/ios/app/rox-index/id1582208777 (this page in markdown: same URL + `.md`)
- Developer: [Satish Deopujari](https://appshunter.io/developer/1180072702)
- Category: Medical, Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 10 MB
- Languages: English
- Released: 2021-08-30
- Data updated: 2026-06-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/rox-index/id1582208777/reviews.md

## What is ROX Index?

The application is designed for doctors and medical students that helps to calculate ROX. ROX is an index that is formulated to predict the chance of success or failure of HFNC. It has been studied mostly in patients with Pneumonia. It is calculated as –

Oxygen saturation (SpO2) / Fraction of Inspired Oxygen (FiO2) X Respiratory rate (RR)

(Range for SpO2 : 70% – 100%,
Range for FiO2 : 21%  – 100%,
Range for RR : 12/min – 70/min)


As is obvious, the higher the index, the better is the chance of success.


Ref link - https://www.med-specialists.net/wp-content/uploads/2021/04/ROX-Index-Management-Guidelines-of-HFNC-MSA.pdf

## Key features

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

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/rox-index/id1582208777/reviews.md

### 5/5 — This was a truly wonderful app!!

*2023-03-19*

I just had to use this app. ARDS patient. This is a wonderful WONDERFUL APP!! It made the decision to try the AIRVO 2 easy! It is going well so far!

## Frequently asked questions about ROX Index

### What is the ROX Index app used for?

The ROX Index app is used by doctors and medical students to calculate the ROX index. This index helps predict the success or failure of High-Flow Nasal Cannula (HFNC) therapy, particularly in patients with pneumonia.

### How is the ROX Index calculated in the app?

The app calculates the ROX Index using the formula: Oxygen saturation (SpO2) / Fraction of Inspired Oxygen (FiO2) X Respiratory rate (RR). It accepts SpO2 between 70%-100%, FiO2 between 21%-100%, and RR between 12/min-70/min.

### Is the ROX Index app free to use?

Yes, the ROX Index app is completely free to download and use. It does not have any in-app purchases or advertisements.

### What devices is the ROX Index app available on?

The ROX Index app is available for iOS devices, including iPhone, iPad, and iPod. It is designed for mobile use.

### When was the ROX Index app last updated?

The ROX Index app was last updated on September 21, 2021, with version 1.3. It was initially released on August 30, 2021.

### What is the age rating for the ROX Index app?

The ROX Index app has an age rating of 4+. This indicates it is suitable for general audiences and does not contain mature content.

### Does the ROX Index app have ads?

No, the ROX Index app does not contain advertisements. Users can utilize its features without any interruptions from ads.

### What is the user sentiment for the ROX Index app?

Based on the available data, the ROX Index app has a perfect rating of 5.0 stars from one review, indicating a highly positive user experience.

## Version history (last 2 releases)

### 1.3 — 2021-09-21

UI and navigation improvements

### 1.0 — 2021-08-30

No release notes.

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## More apps by Satish Deopujari

- [ODC Tutor](https://appshunter.io/ios/app/odc-tutor/id993661003)
- [Complete ABG](https://appshunter.io/ios/app/complete-abg/id993718869)
- [Alveolar - arterial (A-a) Gradient](https://appshunter.io/ios/app/alveolar-arterial-a-a-gradient/id996385661)
- [Medical MCQs](https://appshunter.io/ios/app/medical-mcqs/id1011714896)
- [ETCO2 Tutor](https://appshunter.io/ios/app/etco2-tutor/id1047646888)
- [Rx Pediatric Dehydration](https://appshunter.io/ios/app/rx-pediatric-dehydration/id1051199730)

All apps by Satish Deopujari: https://appshunter.io/developer/1180072702

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-03.*