This application serves as a straightforward calculator for nitrox and enriched air divers. It quickly computes essential dive data such as Maximum Operating Depth (MOD), Equivalent Air Depth (EAD), Best Mix, and Partial Pressure of Oxygen (PPO2). It supports both imperial and metric units and offers a companion watch app for on-the-go calculations.
Reviews of Nitrox Buddy are mostly positive: the Sports app is rated 4.9/5 from 468 App Store ratings. What users like most: easy to use, quick calculations. Top complaints: ugly iPad icon, MOD calculation limited to 40% O2 in older versions. Summarized from real user reviews.
2.4
June 9, 2026
Finally got around to adapting the app to iOS 26
$0.99
Tip
Tip for Nitrox Buddy
4 issues
iPad icon is ugly
MOD limit of 50% O2 despite 100% O2 setting (resolved)
4 requests
Add MOD 1.5 option
Allow MOD calculation up to 100% O2 and indicate max exposure duration
Nitrox Buddy is a calculator app specifically designed for nitrox and enriched air divers. It allows users to quickly determine crucial dive parameters such as Maximum Operating Depth (MOD), Equivalent Air Depth (EAD), Best Mix, and Partial Pressure of Oxygen (PPO2).
Key features include the ability to calculate MOD, EAD, Best Mix, and PPO2. The app supports both imperial and metric measurements, can be used for sea or fresh water, and allows users to select their maximum oxygen content and partial pressure. A companion watch app is also available for wrist-based calculations.
The application is free to download and use, with options for in-app purchases. This typically means core functionality is available for free, with additional features or advanced options accessible through purchase.
You can calculate dive parameters for various conditions, including both sea and fresh water. The app also allows you to specify whether you are using imperial or metric measurements, and you can select your desired maximum oxygen content and partial pressure for your dive.
Yes, the app offers a companion watch app. This allows you to perform all the essential nitrox and enriched air calculations directly on your wrist, making it convenient for divers to access critical information during their dives.
