# O2 Duration vs Broward County EMS

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.

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.

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.

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.

## The numbers

| Metric | O2 Duration | Broward County EMS |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/o2-duration/id556420187/reviews) | **[4.3 (11 ratings)](https://appshunter.io/ios/app/broward-county-ems/id1454298221/reviews)** |
| Number of ratings | 1 | **11** |
| Positive reviews | 0.0% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 169 MB |
| Requires iOS | **7.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Advanced Aviation LLC](https://appshunter.io/developer/540245667) | [BROWARD FIRE RESCUE AND EMERGENCY SERVICES](https://appshunter.io/developer/1471014126) |

## What reviewers say

### O2 Duration

[App page](https://appshunter.io/ios/app/o2-duration/id556420187)

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:** macOS Compatibility

**In-app purchases:** none


### Broward County EMS

[App page](https://appshunter.io/ios/app/broward-county-ems/id1454298221)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*