# Cyl Duration vs Ventilator Mode Map

The clearest difference is update cadence: Ventilator Mode Map at every 3 months against Cyl Duration's every 49 months. Ventilator Mode Map also leads on rating (4.8 vs 4.5). Cyl Duration's advantage is iOS requirement (10.0 vs 17.0). On price, ratings volume, 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.

Ventilator Mode Map holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 8 and 8 respectively.

Cyl Duration ships an update every 49 months, Ventilator Mode Map every 3 months. The most recent releases landed on September 25, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Cyl Duration | Ventilator Mode Map |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (8 ratings)](https://appshunter.io/ios/app/cyl-duration/id447311122/reviews) | **[4.8 (8 ratings)](https://appshunter.io/ios/app/ventilator-mode-map/id1508307955/reviews)** |
| Number of ratings | 8 | 8 |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 49 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 17 MB | 40 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Responsive Respiratory, Inc.](https://appshunter.io/developer/447311125) | [The Cleveland Clinic Foundation](https://appshunter.io/developer/468225376) |

## What reviewers say

### Cyl Duration

[App page](https://appshunter.io/ios/app/cyl-duration/id447311122)

Calculates remaining oxygen in a cylinder for ambulatory users. Input device, liter flow, and cylinder size for precise remaining hours and minutes. Provides peace of mind for oxygen users on the go.

**Highlights:** Calculate remaining oxygen hours/minutes, Input device settings, Input liter flow, Input cylinder size, Precise readout

**Features:** macOS Compatibility

**In-app purchases:** none


### Ventilator Mode Map

[App page](https://appshunter.io/ios/app/ventilator-mode-map/id1508307955)

This app classifies mechanical ventilation modes based on a recognized medical taxonomy. It provides images and details for numerous ventilators worldwide, including manufacturer and model information.

**Highlights:** Mechanical ventilation mode taxonomy implementation, Ventilator manufacturer and model details, Ventilator images, Global ventilator database

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

**In-app purchases:** none


## Frequently asked questions

### Is Cyl Duration free?

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

### Is Ventilator Mode Map free?

Ventilator Mode Map is free to download, with no in-app purchases.

### Which has better reviews, Cyl Duration or Ventilator Mode Map?

Ventilator Mode Map is rated higher. Cyl Duration averages 4.5 out of 5 from 8 ratings, while Ventilator Mode Map averages 4.8 from 8 ratings.

### Do Cyl Duration or Ventilator Mode Map have ads?

Neither Cyl Duration nor Ventilator Mode Map shows ads.

### Which is updated more often, Cyl Duration or Ventilator Mode Map?

Cyl Duration ships an update every 49 months, and Ventilator Mode Map every 3 months. Most recently, Cyl Duration was updated on September 25, 2026 and Ventilator Mode Map on October 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.*