Cyl Duration vs Ventilator Training Alliance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cyl Duration
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.
- Calculate remaining oxygen hours/minutes
- Input device settings
- Input liter flow
- Input cylinder size
- Precise readout
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The O2 To Go! Cylinder Duration App puts patient and technician's minds at ease. With just the touch of a button, the Cyl Duration App calculates the amount of oxygen remaining (hours/minutes) in a cylinder, giving ambulatory users assurance and peace of mind that they have enough oxygen to be on the go. The O2 To Go! Cylinder Duration App enables users to input settings for a precise readout - including device, liter flow, cylinder size and amount of oxygen remaining in the cylinder. Developed by Responsive Respiratory Inc, the High Pressure Oxygen Experts.
Ventilator Training Alliance
Access a comprehensive library of training materials and product information for medical professionals. This app offers free mobile access to how-to videos, manuals, and guides for critical ventilator equipment, developed in partnership with leading manufacturers.
- Multi-vendor training library
- Product materials for medical professionals
- How-to videos
- Product manuals
- Reference guides
- Free mobile access
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The Ventilator Training Alliance app provides a multi-vendor library of training and product materials for medical professionals. Created through a partnership between leading ventilator manufacturers and Allego, Inc., the app provides free mobile access to how-to videos, product manuals, and reference guides for ventilator equipment that is critical to treating patients suffering from respiratory distress. Manufacturers are responsible for their own content.
Screenshots
Verdict
The clearest difference is review sentiment: Ventilator Training Alliance at 93% against Cyl Duration's 42%. Ventilator Training Alliance also leads on update cadence (fortnightly vs every 49 months) and rating (4.9 vs 4.5). Cyl Duration's advantage is iOS requirement (10.0 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Ventilator Training Alliance holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Ventilator Training Alliance has 74 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 42% of Cyl Duration's written reviews are positive against 93% of Ventilator Training Alliance's.
Cyl Duration ships an update every 49 months, Ventilator Training Alliance fortnightly. The most recent releases landed on October 11, 2026 and October 20, 2026 respectively.
| Parameter | Cyl Duration | Ventilator Training Alliance |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) | 4.9 (74 ratings) — better |
| Positive reviews | 41.7% of reviews | 93.3% of reviews — better |
| Number of ratings | 8 | 74 — better |
| Update frequency | Every 49 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 17 MB | 87 MB |
| Age rating | 12+ | 4+ |
| Developer | Responsive Respiratory, Inc. | Allego, Inc. |
Customer experience
Cyl Duration
Ventilator Training Alliance
In-app purchases
Cyl Duration
No in-app purchases
Ventilator Training Alliance
No in-app purchases
Questions
Is Cyl Duration free?
Is Ventilator Training Alliance free?
Which has better reviews, Cyl Duration or Ventilator Training Alliance?
Do Cyl Duration or Ventilator Training Alliance have ads?
Which is updated more often, Cyl Duration or Ventilator Training Alliance?
Other comparisons
