Comparison

O2 Duration vs Broward County EMS

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

Broward County EMS

Access essential emergency medical protocols, HAZMAT guidelines, and pharmacology information. This app provides quick access to hospital matrices, fire station locations, and relevant resources for emergency responders.

Highlights
  • BSO EMS Protocols
  • Broward County Protocols
  • BSO HAZMAT Protocols
  • BSO Pharmacology
  • Medication Tool
  • Hospital Matrix
  • Fire Stations
Features
Read full description

Everything you need at your finger tips with the Broward Sheriff Fire Rescue App, including... BSO EMS Protocols Broward County Protocols BSO HAZMAT Protocols BSO Pharmacology Medication Tool Hospital Matrix Fire Stations Resources Websites

Screenshots

O2 Duration3 screens
Broward County EMS3 screens

Verdict

The call

The clearest difference is review sentiment: Broward County EMS at 60% against O2 Duration's 0%. Broward County EMS also leads on price (Free vs $2.99) and rating (4.3 vs 1.0). O2 Duration's advantage is iOS requirement (7.0 vs 16.0). On 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

Broward County EMS 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

Broward County EMS holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Broward County EMS has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of O2 Duration's written reviews are positive against 60% of Broward County EMS's.

UpkeepUpdate frequency

O2 Duration ships an update every 15 months, Broward County EMS every 3 weeks. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 3 level
O2 Duration versus Broward County EMS: the parameters behind the verdict, then further details
ParameterO2 DurationBroward County EMS
Price$2.99Free — better
Rating1.0 (1 ratings)4.3 (11 ratings) — better
Positive reviews0.0% of reviews60.0% of reviews — better
Number of ratings111 — better
Update frequencyEvery 15 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS7.0 — better16.0
Further details — not scored
Size1 MB169 MB
Age rating4+17+
DeveloperAdvanced Aviation LLCBROWARD FIRE RESCUE AND EMERGENCY SERVICES

Customer experience

O2 Duration

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

Broward County EMS

All ratings11 ratings
Positive81.8%
Neutral0.0%
Negative18.2%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

None

O2 Duration

No in-app purchases

None

Broward County EMS

No in-app purchases

Questions

Is O2 Duration free?
O2 Duration costs $2.99, with no in-app purchases.
Is Broward County EMS free?
Broward County EMS is free to download, with no in-app purchases.
Which has better reviews, O2 Duration or Broward County EMS?
Broward County EMS is rated higher. O2 Duration averages 1.0 out of 5 from 1 ratings, while Broward County EMS averages 4.3 from 11 ratings.
Do O2 Duration or Broward County EMS have ads?
Neither O2 Duration nor Broward County EMS shows ads.
Which is updated more often, O2 Duration or Broward County EMS?
O2 Duration ships an update every 15 months, and Broward County EMS every 3 weeks. Most recently, O2 Duration was updated on October 15, 2026 and Broward County EMS on October 24, 2026.

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