# F&P ROX Vector vs Rapid Vent Calculator

The clearest difference is update cadence: Rapid Vent Calculator at every 4 months against F&P ROX Vector's every 17 months. Rapid Vent Calculator also leads on ratings volume (47 vs 1). F&P ROX Vector's advantage is iOS requirement (11.0 vs 13.0). On price, rating, ads and in-app purchases 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 — 5.0 for F&P ROX Vector against 5.0 for Rapid Vent Calculator. That said, the two scores are not equally well evidenced: Rapid Vent Calculator has 47 ratings behind it against 1, so its average is the more settled of the two.

F&P ROX Vector ships an update every 17 months, Rapid Vent Calculator every 4 months. The most recent releases landed on November 9, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | F&P ROX Vector | Rapid Vent Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/f-and-p-rox-vector/id1512745548/reviews) | [5.0 (47 ratings)](https://appshunter.io/ios/app/rapid-vent-calculator/id6451494244/reviews) |
| Number of ratings | 1 | **47** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 28 MB | 48 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Fisher & Paykel Healthcare](https://appshunter.io/developer/634784377) | [JENCO LLC](https://appshunter.io/developer/1698545004) |

## What reviewers say

### F&P ROX Vector

[App page](https://appshunter.io/ios/app/f-and-p-rox-vector/id1512745548)

This app visualizes respiratory rate and oxygen delivery changes in vector form. It calculates the ROX index to predict the success of nasal high flow therapy for hypoxemic respiratory failure. The tool also serves as a simulation for clinical scenarios and allows data export.

**Highlights:** Visualize respiratory rate and oxygen changes, Calculate ROX index, Predict nasal high flow therapy success, Clinical scenario simulation, Export data in xlsx format

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Rapid Vent Calculator

[App page](https://appshunter.io/ios/app/rapid-vent-calculator/id6451494244)

This medical app assists healthcare professionals in calculating essential ventilator settings and medication dosages for critical care. It provides rapid, accurate results for paramedics, respiratory therapists, nurses, and doctors, streamlining patient management.

**Highlights:** Effortless ventilator settings calculation, Rapid results for quick decision-making, RSI medication dosage assistant, User-friendly interface for medical professionals, Accurate patient parameter input

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is F&P ROX Vector free?

F&P ROX Vector is free to download, with no in-app purchases.

### Is Rapid Vent Calculator free?

Rapid Vent Calculator is free to download, with no in-app purchases.

### Which has better reviews, F&P ROX Vector or Rapid Vent Calculator?

F&P ROX Vector and Rapid Vent Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 47 ratings respectively.

### Do F&P ROX Vector or Rapid Vent Calculator have ads?

Neither F&P ROX Vector nor Rapid Vent Calculator shows ads.

### Which is updated more often, F&P ROX Vector or Rapid Vent Calculator?

F&P ROX Vector ships an update every 17 months, and Rapid Vent Calculator every 4 months. Most recently, F&P ROX Vector was updated on November 9, 2026 and Rapid Vent Calculator on November 3, 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.*