# F&P ROX Vector vs Safe Vent

The clearest difference is in-app purchases: F&P ROX Vector at none against Safe Vent's 2. F&P ROX Vector also leads on iOS requirement (11.0 vs 13.0). Safe Vent's advantage is update cadence (every 3 months vs every 17 months). On price, ads and device support there is nothing between them.

Both are free to download. Safe Vent sells 2 in-app purchases, starting at $2.99 per month. F&P ROX Vector asks for nothing beyond the download.

F&P ROX Vector ships an update every 17 months, Safe Vent every 3 months. The most recent releases landed on October 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | F&P ROX Vector | Safe Vent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/f-and-p-rox-vector/id1512745548/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 28 MB | 58 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Fisher & Paykel Healthcare Limited](https://appshunter.io/developer/634784377) | [SYNAPS AI SAS](https://appshunter.io/developer/1710831235) |

## 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


### Safe Vent

[App page](https://appshunter.io/ios/app/safe-vent/id6468893543)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Safe Vent Full Access | $2.99 | per month |
| Safe Vent Full Access | $29.99 | per year |


## Frequently asked questions

### Is F&P ROX Vector free?

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

### Is Safe Vent free?

Safe Vent is free to download, with in-app purchases available.

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

Neither F&P ROX Vector nor Safe Vent shows ads.

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

F&P ROX Vector ships an update every 17 months, and Safe Vent every 3 months. Most recently, F&P ROX Vector was updated on October 9, 2026 and Safe Vent on September 11, 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.*