Comparison

O2 Duration vs BloodCOMM

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

O2 Duration

Calculate the approximate remaining oxygen in portable cylinders. Select your tank size, input current pressure and desired flow rate to see duration in minutes. Features a timer with alerts for low pressure.

Highlights
  • Oxygen cylinder duration calculation
  • Supports multiple cylinder sizes (A, B, D, E, G, H, K, M)
  • Input current tank pressure
  • Input desired flow rate
  • Displays duration in minutes
  • Running timer with remaining time
  • Low pressure alerts (500lbs and 0lbs)
Features
Read full description

O2 Duration is an oxygen consumption calculator for various oxygen cylinder sizes. This is the easiest way to quickly determine the approximate number of minutes until an oxygen tank will be depleted of oxygen. This tool is a must have for Nurse's and EMT’s who work with portable oxygen cylinders. The application allows you to select cylinder tank sizes A, B, D E, G, H, K and M. With the current tank pressure and desired flow rate, the app will display the oxygen duration in minutes. Additionally, a timer can be started which will display a running tank pressure and time in minutes remaining until the tank is empty. When tank pressure reaches 500lbs or when the tank pressure is zero the application will alert you. This is not a substitute for looking at the oxygen cylinder gauge to determine actual pressure and should not be relied on as a means to determine oxygen remaining.

About

BloodCOMM

This application allows users to wirelessly monitor and manage the temperature of blood products stored in compatible portable medical refrigerators and smart blood coolers. It provides real-time data, historical records, and alerts for temperature excursions, ensuring compliance and product integrity.

Highlights
  • Real-time temperature monitoring
  • Bluetooth and cellular monitoring
  • Temperature history and graphs
  • Excursion alerts and recording
  • Downloadable PDF/CSV reports
  • Unit nickname assignment
  • Low battery notifications
Read full description

BloodCOMM is a highly intuitive, blood program management software application that allows users to wirelessly connect to existing APRU 6L Portable Medical Refrigerators and Delta ICE 2L Smart Blood Coolers. It is the next evolution in mobile blood management to ensure compliance with Blood Banks, Hospitals, and Agency Directors. The app extends the functionality of existing APRU & ICE units in the following ways: - Real-time Temperature Monitoring and Recording - Close Range, Bluetooth Monitoring - Remote, Cellular Monitoring (currently available for Delta ICE) - Download, Export, and Email Reports (PDF or CSV) - View Temperature History - View Temperature Graphs - View Exact Excursion Dates, Times, and Temperatures - Record static snapshots of data for sharing or storage - Assign Nicknames to Individual Units - Wirelessly monitor and receive notifications for approaching excursions, low battery, and active excursions. ...and much more! Learn more at the BloodCOMM Resource Center website: https://docs.blood.dev/ Compatible with the following products: - Delta Development APRU 6L - Delta Development ICE 2L ----------------- About the Autonomous Portable Refrigeration Unit (APRU): The APRU provides constant cooling of blood products, vaccines, virus samples, and temperature-controlled medications with superior performance, in military operations, disaster relief response, and emergency medical systems. https://deltadevteam.com/portable-medical-refrigerator/ About the Smart Blood Cooler (Delta ICE): The Delta ICE provides monitored storage of blood products, vaccines, virus samples, and temperature-controlled medications for extended periods of time. Utilizing a smart monitoring system, the cooler will alert of temperature excursions and report when it is time to change the internal ICE pack. https://deltadevteam.com/smart-blood-cooler/ https://blood.dev https://www.deltadevteam.com/

Screenshots

O2 Duration3 screens
BloodCOMM4 screens

Verdict

The call

The clearest difference is price: BloodCOMM at Free against O2 Duration's $2.99. BloodCOMM also leads on rating (5.0 vs 1.0) and update cadence (every 2 weeks vs every 15 months). O2 Duration's advantage is iOS requirement (7.0 vs 15.6). On ratings volume, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

BloodCOMM is free to download; O2 Duration costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BloodCOMM holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

O2 Duration ships an update every 15 months, BloodCOMM every 2 weeks. Both last shipped on October 15, 2026.

Scorecard5 real differences · 5 level
O2 Duration versus BloodCOMM: the parameters behind the verdict, then further details
ParameterO2 DurationBloodCOMM
Price$2.99Free — better
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyEvery 15 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS7.0 — better15.6
Further details — not scored
Size1 MB98 MB
Age rating4+4+
DeveloperAdvanced Aviation LLCDelta Development Team, Inc.

Customer experience

O2 Duration

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

BloodCOMM

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

O2 Duration

No in-app purchases

None

BloodCOMM

No in-app purchases

Questions

Is O2 Duration free?
O2 Duration costs $2.99, with no in-app purchases.
Is BloodCOMM free?
BloodCOMM is free to download, with no in-app purchases.
Which has better reviews, O2 Duration or BloodCOMM?
BloodCOMM is rated higher. O2 Duration averages 1.0 out of 5 from 1 ratings, while BloodCOMM averages 5.0 from 1 ratings.
Do O2 Duration or BloodCOMM have ads?
Neither O2 Duration nor BloodCOMM shows ads.
Which is updated more often, O2 Duration or BloodCOMM?
O2 Duration ships an update every 15 months, and BloodCOMM every 2 weeks. Most recently, O2 Duration was updated on October 15, 2026 and BloodCOMM on October 15, 2026.

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