O2 Calculator Companion

Accurate EMS Oxygen Calculator

$4.99 · Designed for iPad

Smarter oxygen monitoring for medics in the field. Fast, offline-ready tank duration calculator with real-time alerts and zero fluff. The O₂ Calculator Companion is a mission-critical tool designed for EMS professionals, paramedics, and emergency responders. Quickly and accurately estimate oxygen tank duration in real-time based on tank type, PSI, and flow rate — all in the palm of your hand. Built to perform under pressure, this app helps eliminate guesswork in critical care scenarios where every second counts. Designed for Field Use: Fast, intuitive interface optimized for iPhone and iPad Minimal taps to enter tank data and get immediate duration estimates Works offline — no internet needed in remote or chaotic environments Key Features: Supports multiple tank types (D, E, M, Jumbo D, etc.) Adjustable PSI and flow rate settings Automatic safety margin factored into calculations (default 200 PSI) Smart alerts for Insufficient O₂ and Sufficient O₂ Custom caution zone alerts before depletion Responsive modal-style warnings to enhance decision-making in the field Built for Real-World EMS: Ideal for ambulance crews, flight medics, field hospitals, and disaster response teams Created by EMS professionals with real frontline experience Use it during patient transport, at scene, or in clinical training environments Data & Privacy: No personal data collected. No login required. Just reliable calculations when you need them most. Why O₂ Calculator Companion? Paramedics, EMTs, and emergency responders rely on rapid, accurate tools. The O₂ Calculator Companion empowers you to confidently manage oxygen resources with a simple, high-clarity interface and built-in alerting logic — no clutter, no distractions, just performance. Join the thousands of EMS professionals already optimizing care with smarter oxygen monitoring.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

• Major UI redesign for speed and clarity • Added DevForge branding and new logo • Improved alert banners and calculator precision • Optimized for iOS 18 compatibility

Version 5.0

The developer, Joseph Perry, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    For more information, visit the developer’s accessibility website .

    Information

    • Seller
      • Joseph Perry
    • Size
      • 1.8 MB
    • Category
      • Medical
    • Compatibility
      Requires iOS 15.6 or later.
      • iPhone
        Requires iOS 15.6 or later.
      • iPad
        Requires iPadOS 15.6 or later.
      • iPod touch
        Requires iOS 15.6 or later.
      • Mac
        Requires macOS 12.5 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 1.0 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © 2025 DevForge Collectives
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

    You Might Also Like