# OxyCalc > Oxygen calculator for critical care medical transport teams. (iPhone/iPad app by Zachariah Lowe.) - Source: https://appshunter.io/ios/app/oxycalc/id6747904905 (this page in markdown: same URL + `.md`) - Developer: [Zachariah Lowe](https://appshunter.io/developer/1574050501) - Category: Medical, Education - Price: Free - Rating: 5.00/5 from 12 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 18.4 · 5 MB - Languages: American English - Released: 2025-06-29 - Data updated: 2026-07-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/oxycalc/id6747904905/reviews.md ## What is OxyCalc? OxyCalc is the essential oxygen calculator for critical care air and ground medical teams. Instantly estimate, plan, and track oxygen needs for each patient—factoring in altitude, transport time, equipment type, and more. Built for CCATT teams, flight medics, and transport clinicians, OxyCalc ensures you never run out of O₂ when it matters most. Features: • Calculate oxygen demand per patient with altitude adjustment (accounts for cabin/target altitude, FiO₂, tidal volume, respiratory rate, and PEEP) • Supports PTLOX, compressed gas tanks, and wall/hospital O₂ (automatic tank factors and conversions) • Instant O₂ balance: See at a glance if supply meets demand for your entire mission • Real-time recalculation when adding/removing patients or changing oxygen sources • Designed for field use: Fast, reliable, and easy to use in critical environments • Ground and air transport: Works for medevac, critical care, and hospital transfers Why OxyCalc? • Built using current CCATT and JTS guidelines • Ideal for flight medics, transport nurses, and critical care teams • No internet required. All calculations happen on your device for speed and privacy Privacy-first: OxyCalc does not collect, transmit, or store any personal data or patient information. All data is kept securely on your device and never leaves it. No sign-in, no cloud, and no analytics—just powerful calculations when you need them most. Take the guesswork out of oxygen planning. Download OxyCalc and transport with confidence. ## Key features - Calculate oxygen demand with altitude adjustment - Supports PTLOX, compressed gas tanks, and wall O₂ - Instant O₂ balance for entire mission - Real-time recalculation - Designed for field use - Works for ground and air transport ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/oxycalc/id6747904905/reviews.md ### 5/5 — No more in air math *2025-08-20* Super helpful and takes math out of the equation. Would give 6 stars if I could ### 5/5 — Saving lives one app at a time *2025-06-29* Definite five stars! ### 5/5 — All the info you need in one place *2025-06-29* Takes the guesswork out of it so I can move on to other tasks ## Frequently asked questions about OxyCalc ### What is OxyCalc used for? OxyCalc is an oxygen calculator designed for critical care medical teams during air and ground transport. It helps estimate, plan, and track oxygen needs for patients by factoring in altitude, transport time, and equipment. ### Does OxyCalc require an internet connection? No, OxyCalc does not require an internet connection. All calculations are performed on your device, ensuring speed and privacy for sensitive patient data. ### What types of oxygen sources does OxyCalc support? OxyCalc supports PTLOX, compressed gas tanks, and wall/hospital O₂. It automatically handles tank factors and conversions for these sources. ### Is OxyCalc suitable for different transport environments? Yes, OxyCalc is designed for both ground and air transport, making it suitable for medevac, critical care, and hospital transfers. ### How does OxyCalc handle changes during a mission? OxyCalc offers real-time recalculation. You can instantly update oxygen needs if patients are added or removed, or if the oxygen source changes. ### What guidelines is OxyCalc built upon? OxyCalc is built using current CCATT and JTS guidelines, ensuring its calculations and recommendations align with established medical protocols for critical care transport. ### Does OxyCalc collect any personal or patient data? No, OxyCalc is privacy-first and does not collect, transmit, or store any personal data or patient information. All data remains securely on your device. ### What is the age rating for OxyCalc? OxyCalc has an age rating of 4+, making it accessible for a wide range of users within the medical field. ## Version history (last 2 releases) ### 1.0.1 — 2025-07-07 - Ensuring "Done" button is present for any input - Removed splash screen - fix CSV export - Made PDF export look better - Added author credits - Fixed FAQ page formatting ### 1.0 — 2025-06-29 No release notes. ## Apps similar to OxyCalc | App | Rating | Price | Category | | --- | --- | --- | --- | | [CorePendium](https://appshunter.io/ios/app/corependium/id1581291387) | 4.9 (1,344) | Free | Medical | | [ambIT Pump Training](https://appshunter.io/ios/app/ambit-pump-training/id864391228) | 5.0 (4) | Free | Medical | | [Deployed Medicine](https://appshunter.io/ios/app/deployed-medicine/id1203051672) | 4.5 (8) | Free | Medical | | [Muru](https://appshunter.io/ios/app/muru/id1409950908) | 4.9 (128) | Free | Medical | | [Vscan Air Wireless Ultrasound](https://appshunter.io/ios/app/vscan-air-wireless-ultrasound/id1102732521) | 4.0 (45) | Free | Medical | | [Burn Nav](https://appshunter.io/ios/app/burn-nav/id1273792057) | 5.0 (2) | Free | Medical | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-04.*