Nitrox Buddy

Gereon Steffens Sports iPhoneiPadiPod touchApple Watch

Nitrox Buddy is a free Sports app for iPhone and iPad by Gereon Steffens. Rated 4.9/5 from 489 ratings. Requires iOS 26.0. Updated June 9, 2026.

Rating: 4.9; 489 ratings
Price: Free; on the App Store
Size: 6 MB; Age 4+
Updated: Jun 9; 2026 · v2.4

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About Nitrox Buddy

Nitrox Buddy is a no-frills calculator app for nitrox/enriched air divers - use it to quickly calculate the most important data for your dive: Maximum Operating Depth/MOD, Equivalent Air Depth/EAD, Best Mix and PPO2. The app works with imperial or metric measurements, sea or fresh water, and allows you to select the maximum oxygen content and partial pressure. A companion watch app puts lets you perform all these calculations on your wrist.

Ratings & reviews

4.9

489 ratings

5 ★ 92% 4 ★ 6% 3 ★ 2% 2 ★ 0% 1 ★ 0%

What’s new

Version 2.4 · Updated June 9, 2026

Finally got around to adapting the app to iOS 26

App privacy

The developer, Gereon Steffens, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

Nitrox Buddy is a free Sports app for iPhone, iPad, iPod touch and Apple Watch, developed by Gereon Steffens. It is rated 4.9 out of 5 from 489 ratings on the App Store, requires iOS 26.0 or later, is 6 MB to download and is available in 3 languages. It was first released on November 3, 2012 and last updated on June 9, 2026.

Category: Sports
Rating: 4.9 / 5 (489 ratings)
Price: Free
Version: 2.4
Size: 6 MB
Requires: iOS 26.0 or later
Compatibility: iPhone, iPad, iPod touch, Apple Watch
Languages: English, French, German
Age rating: 4+
Released: November 3, 2012
Last updated: June 9, 2026
Developer: Gereon Steffens

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Alternatives to Nitrox Buddy

Looking for apps like Nitrox Buddy? Here are 6 similar apps on the App Store. The highest rated is Scuba Dive Signals (5.0/5), and all 6 are free to download.

Nitrox Buddy vs. alternatives
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Nitrox Buddy	4.9 / 5 (489 ratings)	Free	June 9, 2026
Shearwater Cloud	2.6 / 5 (104)	Free	Jun 18, 2026	Compare
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