Cyl Duration vs Masimo SafetyNet
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
Read full descriptionHide full description
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.
Masimo SafetyNet
This platform enables healthcare providers to remotely manage patients through digital CarePrograms delivered to smartphones. It actively reminds patients of their care plans and collects monitoring data from tetherless sensors for clinician evaluation.
- Remote patient management
- Digital CarePrograms
- Smartphone delivery
- Automated patient reminders
- Continuous monitoring data capture
- Tetherless Radius PPG sensor
- Integration with Apple Health
Read full descriptionHide full description
Masimo SafetyNet does not provide medical or healthcare diagnoses, advice, or services, and is not a substitute for medical care. Masimo SafetyNet is a secure cloud-based platform that allows providers to remotely manage patients using customized interactive digital CarePrograms. CarePrograms offer a digital replacement for traditional home-care plans and are delivered to patients’ smartphones. The CareProgram actively reminds patients to follow their care plan, automatically captures monitoring data from the tetherless Radius PPG sensor, and securely pushes the data to clinicians at the hospital for evaluation. Radius PPG sensors, powered by Masimo SET® measure-through-motion technology, provide continuous respiration rate and oxygen saturation monitoring via a tetherless, single-patient-use sensor. Masimo SafetyNet integrates with Apple Health allowing users to share measurements collected from connected devices.
Screenshots
Verdict
The clearest difference is update cadence: Masimo SafetyNet at monthly against Cyl Duration's every 49 months. Masimo SafetyNet also leads on ratings volume (367 vs 11) and review sentiment (63% vs 46%). Cyl Duration's advantage is iOS requirement (10.0 vs 16.5.1). On price, rating, ads and in-app purchases 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.
On the App Store both sit at effectively the same score — 4.6 for Cyl Duration against 4.7 for Masimo SafetyNet. That said, the two scores are not equally well evidenced: Masimo SafetyNet has 367 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 46% of Cyl Duration's written reviews are positive against 63% of Masimo SafetyNet's.
Cyl Duration ships an update every 49 months, Masimo SafetyNet monthly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Cyl Duration | Masimo SafetyNet |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (11 ratings) | 4.7 (367 ratings) — better |
| Positive reviews | 46.2% of reviews | 63.0% of reviews — better |
| Number of ratings | 11 | 367 — better |
| Update frequency | Every 49 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 16.5.1 |
| Further details — not scored | ||
| Size | 17 MB | 265 MB |
| Age rating | 12+ | 4+ |
| Developer | Responsive Respiratory, Inc. | Masimo Corporation |
Customer experience
Cyl Duration
Masimo SafetyNet
In-app purchases
Cyl Duration
No in-app purchases
Masimo SafetyNet
No in-app purchases
Questions
Is Cyl Duration free?
Is Masimo SafetyNet free?
Which has better reviews, Cyl Duration or Masimo SafetyNet?
Do Cyl Duration or Masimo SafetyNet have ads?
Which is updated more often, Cyl Duration or Masimo SafetyNet?
Other comparisons
