# VentilO vs Rapid Vent Calculator

The clearest difference is ratings volume: Rapid Vent Calculator at 47 against VentilO's 2. 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 — 5.0 for VentilO 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 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

VentilO ships an update every 2 months, Rapid Vent Calculator every 4 months. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | VentilO | Rapid Vent Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/ventilo/id1478758927/reviews) | [5.0 (47 ratings)](https://appshunter.io/ios/app/rapid-vent-calculator/id6451494244/reviews) |
| Number of ratings | 2 | **47** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 26 MB | 48 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [L'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ)](https://appshunter.io/developer/576953454) | [JENCO LLC](https://appshunter.io/developer/1698545004) |

## What reviewers say

### VentilO

[App page](https://appshunter.io/ios/app/ventilo/id1478758927)

This educational app helps healthcare professionals manage patients on mechanical ventilation. It provides guidance on setting initial parameters, optimizing settings for oxygenation and CO2 elimination, and understanding the impact of dead space. It also includes tools for calculating various respiratory parameters and links to additional resources.

**Highlights:** Initial ventilatory setting guidance, Parameter influence analysis, Optimization for oxygenation and CO2, Dead space impact education, Instrumental dead space calculation, Respiratory calculators, Links to additional tools

**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 VentilO free?

VentilO 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, VentilO or Rapid Vent Calculator?

VentilO and Rapid Vent Calculator are both rated 5.0 out of 5 on the App Store, from 2 and 47 ratings respectively.

### Do VentilO or Rapid Vent Calculator have ads?

Neither VentilO nor Rapid Vent Calculator shows ads.

### Which is updated more often, VentilO or Rapid Vent Calculator?

VentilO ships an update every 2 months, and Rapid Vent Calculator every 4 months. Most recently, VentilO was updated on September 30, 2026 and Rapid Vent Calculator on October 7, 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.*