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Best Scuba Nitrox Apps

189+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated May 2026

If you already know Nitrox Buddy, this is the deeper bench. 189+ scuba nitrox apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.

Compare top Scuba Nitrox Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Nitrox BuddyNitrox BuddyFree4.9★ (468)NoYesJul 2026
2Nitrox – MOD & Dive PlanningNitrox – MOD & Dive PlanningFree5.0★ (1)NoYesJul 2026
3Nitrox ToolsNitrox Tools$5.995.0★ (4)NoNoJun 2026
4Nitrox Virtual AnalyzerNitrox Virtual AnalyzerFree—NoNoMay 2026
5Scuba Diving Computer Oceanic+Scuba Diving Computer Oceanic+Free4.4★ (4.5K)NoYesJul 2026
6PADIPADIFree4.9★ (46K)NoNoJul 2026
7Dive Kit: Deco Planner & ToolsDive Kit: Deco Planner & ToolsFree5.0★ (1)NoYesJul 2026
8MySSIMySSIFree4.9★ (850)YesNoJul 2026

Top Picks for Scuba Nitrox

Nitrox Buddy#1

Nitrox Buddy by Gereon Steffens

Nitrox/Enriched Air Calculator
Editor's Choice
⚽ Sports
4.9😊(468 ratings)
FreeIn-App Purchases
Nitrox Buddy screenshot 1
Nitrox Buddy screenshot 2
Nitrox Buddy screenshot 3
Nitrox Buddy screenshot 4
Nitrox Buddy screenshot 5

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.

What We Love

  • 👍 Easy to use
  • 🚀 Quick calculations
  • ✅ Accurate results
  • 💡 Free to use

Room to Improve

  • 📱 Ugly iPad icon
  • ⚠️ MOD calculation limited to 40% O2 in older versions
  • ⚠️ MOD calculation limited to 50% O2 in older versions
Nitrox – MOD & Dive Planning#2

Nitrox – MOD & Dive Planning by ENVIVIA

Nitrox – MOD & Dive Planning
Strong Contender
📚 Education
5.0(1 ratings)
FreeIn-App Purchases
Nitrox – MOD & Dive Planning screenshot 1
Nitrox – MOD & Dive Planning screenshot 2
Nitrox – MOD & Dive Planning screenshot 3
Nitrox – MOD & Dive Planning screenshot 4
Nitrox – MOD & Dive Planning screenshot 5
Nitrox – MOD & Dive Planning screenshot 6

This app is a premium digital guide for Nitrox diving, offering educational content and calculation tools to optimize dives. It helps divers understand oxygen limits, plan dives using gradient factors, and prepare for certification.

Nitrox Tools#3

Nitrox Tools by Greg Mclaughlin

Dive Planning and Blending
Worth Considering
⚽ Sports
5.0(4 ratings)
$5.99
Nitrox Tools screenshot 1
Nitrox Tools screenshot 2
Nitrox Tools screenshot 3
Nitrox Tools screenshot 4
Nitrox Tools screenshot 5
Nitrox Tools screenshot 6

This app provides essential tools for divers to plan and blend enriched air nitrox. It calculates dive parameters like equivalent air depth and maximum operating depth, and supports various blending methods for custom gas mixes. Easily switch between metric and imperial units and save custom settings for frequent use.

More Scuba Nitrox apps to explore

4
Nitrox Virtual Analyzer
Nitrox Virtual Analyzer
Nitrox Virtual Analyzer
The worlds first
Free
⚽ Sports
(0)
5
Scuba Diving Computer Oceanic+
Scuba Diving Computer Oceanic+
Scuba Diving Computer Oceanic+
Scuba, Freedive & Snorkel
Free

Transform your Apple Watch Ultra into a comprehensive dive computer for scuba, freediving, and snorkeling. Explore new locations with heatmaps, track your routes, organize underwater media, and share your adventures securely. Plan dives, monitor real-time data, and stay safe with advanced algorithms.

Dive computer functionalitySnorkeling route trackingUser-generated dive spot heatmaps
⚽ Sports
(4.5K)
free with in-app purchases
6
PADI
PADI
PADI
by PADI Americas, Inc.
Free

This app provides comprehensive scuba diving resources, allowing users to learn, log dives offline, verify certifications, and discover new adventures. Stay connected with the diving community and book your next underwater experience.

Online and offline learningOffline dive loggingCertification verification
💼 Business
(46K)
free
7
Dive Kit: Deco Planner & Tools
Dive Kit: Deco Planner & Tools
Dive Kit: Deco Planner & Tools
Nitrox, Trimix & Deco Planner
Free

This app provides comprehensive dive planning tools for various gas mixes, including trimix and CCR dives. It offers a suite of free utilities for gas analysis, usage, and buoyancy calculations, alongside educational content and a certification wallet. The premium version unlocks advanced planning features for complex dives.

Open-circuit, trimix, and CCR dive planningAutomatic gas switching and unlimited segmentsOffline functionality
⚽ Sports
(1)
freemium
8
MySSI
MySSI
MySSI
by SSI International GmbH
Free

Access digital training materials, certifications, and a digital logbook for various diving disciplines. Track dive progress, manage gear, and earn ratings. Connect with dive centers and stay updated on industry news and events.

Digital training materialsDigital certificationsDigital logbook
⚽ Sports
(850)
free with in-app purchases
9
Nitrox Blender & Calculator
Nitrox Blender & Calculator
Nitrox Blender & Calculator
Easy nitrox diving calculator
$0.99

This app helps divers plan their dives by calculating maximum operating depth, optimal oxygen percentage, and equivalent air depth. It also assists in gas mixing for filling tanks, determining the required mix or the resulting blend.

Calculate MODCalculate optimal oxygen percentageCalculate equivalent air depth
🔧 Utilities
(2)
paid
10
DIVEROUT - 潜水电脑
DIVEROUT - 潜水电脑
DIVEROUT - 潜水电脑
水肺潜水日志,自由潜水记录,AI潜水助手
Free

This app transforms your Apple Watch into a comprehensive dive computer for scuba, freediving, and snorkeling. It offers AI-powered color correction for underwater photos and videos, advanced freediving training tools, and a community for connecting with other divers.

Apple Watch dive computer functionalityAI underwater photo/video color correctionFreediving training and testing
⚽ Sports
(16)
free with in-app purchases
11
Dive Nitrox
Dive Nitrox
Dive Nitrox
by Jim Corbo
Free

This app calculates SCUBA EANx, ppO2, and depth using simple sliders. It determines EAD, MOD, and Best Mix for enriched air nitro mixes. Optimized for specific iPhone models.

EANx, ppO2, and depth calculationEAD, MOD, and Best Mix determinationEnriched air nitro mix adjustment
⚽ Sports
(2)
free
12
Simple Nitrox
Simple Nitrox
Simple Nitrox
Calculate MOD and Best Nx%
Free
⚽ Sports
(0)
13
Apnea Freediving Exercises
Apnea Freediving Exercises
Apnea Freediving Exercises
Breathe Hold Stamina Training
Free

Enhance your freediving, apnea, and diving abilities with a four-week training program. This app helps you increase breath-hold time, dive deeper, and explore more of the underwater world. Regular practice improves your apnea skills and overall diving performance.

Four-week training programCustomized to current breath-holdIncrease breath-hold time
💪 Health & Fitness
(2.9K)
free with in-app purchases
14
Garmin Dive™
Garmin Dive™
Garmin Dive™
by Garmin
Free

This app serves as a comprehensive diving logbook and planning tool. It automatically records dive data, tracks gas consumption, and supports various diving disciplines. Users can also discover dive sites, manage gear, and share experiences with a community.

Automatic dive loggingGas consumption trackingSupport for multiple dive types
⚽ Sports
(842)
free
15
Breathe - Smart Scuba Dive Log
Breathe - Smart Scuba Dive Log
Breathe - Smart Scuba Dive Log
A better log for scuba divers.
Free

This app digitizes scuba diving logs, replacing traditional paper books. It allows divers to record detailed information about each dive, including photos, videos, and equipment, with both free and premium features available.

Digital dive loggingMulti-depth profilesAdd photos and videos
⚽ Sports
(292)
freemium
16
Dive Calculator
Dive Calculator
Dive Calculator
by Zanthic Automation Inc.
Free

This app provides comprehensive scuba diving calculations, including basic, nitrox, and trimix gas mixes. It supports both metric and imperial units, and allows for gas volume and cost calculations for blending and top-ups. Results can be easily copied for documentation.

Basic, Nitrox, and Trimix calculationsGas volume and cost calculationsTop-up and bleed down mix calculations
⚽ Sports
(24)
free
17
Apnea Trainer
Apnea Trainer
Apnea Trainer
Hold your breath longer
Free
$29.99 | 100% OFF

Train to hold your breath longer for freediving and snorkeling. This app uses a yoga-based technique to strengthen your diaphragm, increasing lung capacity and reducing carbon dioxide. Prepare for amazing underwater experiences with guided breathing exercises and custom settings.

Improve free diving timePranayama mode for calm preparationCustom time settings for advanced users
⚽ Sports
(1.6K)
free
18
STAmina Apnea Trainer
STAmina Apnea Trainer
STAmina Apnea Trainer
Freediving, Spearfishing coach
Free

This app helps users improve their breath-holding capabilities for activities like freediving, spearfishing, and other water sports. It offers various training tables and personalized programs to enhance physical and mental endurance underwater.

6 Apnea table options (O2 deprivation, CO2 tolerance, Wonka, Mix, Custom, Pranayama)Personalized training programs with 3 difficulty levelsCustomizable exercise settings
⚽ Sports
(5.4K)
free with in-app purchases
19
DeepLog — Scuba Dive Log
DeepLog — Scuba Dive Log
DeepLog — Scuba Dive Log
Your Personal Dive Journal
Free
⚽ Sports
(0)
20
Diving Log - Scuba Logbook
Diving Log - Scuba Logbook
Diving Log - Scuba Logbook
Log Book App for Scuba Diver
Free

Record your scuba diving activities, including dive data, weather conditions, and photos. Create visual "DiveLines" of your underwater experiences and share them with friends. An optional add-on allows for additional features and ad removal.

Logbook and DiveLine creationLocation tracking for divesCSV and image file export
⚽ Sports
(2)
free with in-app purchases

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FAQ about Scuba Nitrox

What are the best scuba nitrox apps for iPhone?
Nitrox Buddy tops our scuba nitrox apps ranking as of May 2026, with a 4.9-star average from 468 App Store ratings, and it's free to download.
Yes — 18 of the top scuba nitrox apps we rank are free to download, including Nitrox Buddy and Nitrox – MOD & Dive Planning.
Nitrox Buddy has no ads and offers in-app purchases, according to its App Store listing as of May 2026.
We track 189+ scuba nitrox apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
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.