# The Difficult Airway App vs VentilO

The clearest difference is review sentiment: VentilO at 100% against The Difficult Airway App's 31%. VentilO also leads on price (Free vs $4.99) and rating (5.0 vs 4.1). The Difficult Airway App's advantage is ratings volume (22 vs 2) and chart position (#29 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

VentilO is free to download; The Difficult Airway App costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VentilO holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: The Difficult Airway App has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 31% of The Difficult Airway App's written reviews are positive against 100% of VentilO's.

The Difficult Airway App ships an update every 10 months, VentilO every 2 months. The most recent releases landed on September 10, 2026 and June 15, 2026 respectively.

## The numbers

| Metric | The Difficult Airway App | VentilO |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.1 (22 ratings)](https://appshunter.io/ios/app/the-difficult-airway-app/id433176317/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ventilo/id1478758927/reviews)** |
| Number of ratings | **22** | 2 |
| Positive reviews | 31.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Best chart rank | **#29** | — |
| Size | 62 MB | 26 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Airway Management Education Center](https://appshunter.io/developer/433176320) | [Institut universitaire de cardiologie et de pneumologie de Quebec](https://appshunter.io/developer/576953454) |

## What reviewers say

### The Difficult Airway App

[App page](https://appshunter.io/ios/app/the-difficult-airway-app/id433176317)

**Currently charting:** #29 Top Paid · Medical (US App Store)

This medical app assists clinicians in managing emergency airways by providing rapid drug selection and dosing for RSI. It offers decision-making support with algorithms and mnemonics for difficult airways, along with educational resources.

**Highlights:** Adult and pediatric drug dosing for RSI, Obesity and hemodynamic adjustments, Broselow-Luten color system integration, Difficult airway algorithms and predictors, Step-by-step RSI guidance, Customizable drug formulary, Airway anatomy illustrations

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

**In-app purchases:** none


### 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

**In-app purchases:** none


## Frequently asked questions

### Is The Difficult Airway App free?

The Difficult Airway App costs $4.99, with no in-app purchases.

### Is VentilO free?

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

### Which has better reviews, The Difficult Airway App or VentilO?

VentilO is rated higher. The Difficult Airway App averages 4.1 out of 5 from 22 ratings, while VentilO averages 5.0 from 2 ratings.

### Do The Difficult Airway App or VentilO have ads?

Neither The Difficult Airway App nor VentilO shows ads.

### Which is updated more often, The Difficult Airway App or VentilO?

The Difficult Airway App ships an update every 10 months, and VentilO every 2 months. Most recently, The Difficult Airway App was updated on September 10, 2026 and VentilO on June 15, 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.*