Comparison

Nitrox Buddy vs Oceanic+ Scuba Diving Computer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Nitrox Buddy

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.

Highlights
  • Calculate MOD, EAD, Best Mix, PPO2
  • Imperial and metric unit support
  • Sea and fresh water options
  • Selectable max oxygen content
  • Selectable max partial pressure
  • Companion watch app
Features
Read full description

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.

About

Oceanic+ Scuba Diving Computer

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.

Highlights
  • Dive computer functionality
  • Snorkeling route tracking
  • User-generated dive spot heatmaps
  • Dive log and media organization
  • Pre-dive planner
  • Real-time dive data monitoring
  • Freediving mode with custom alarms
Features
Currently charting
Read full description

Dive into a World of Adventure with Oceanic+ on Your Apple Watch Ultra! Ready to make every dive or snorkeling experience an unforgettable journey? Oceanic+ transforms your Apple Watch Ultra into a full-featured dive computer, making it easier to explore the underwater world - from your favorite local spots to the most exotic oceans. New Features: Explore Like a Local with User-Generated Heatmaps Curious about the best dive spots? Our new heatmaps reveal popular scuba, freediving, and snorkeling locations worldwide or near your hotel. Switch between modes to see where fellow divers have explored and check water conditions reported up to 3 days in advance. Track Your Snorkeling Adventures Each snorkeling session is now mapped out for you! Get a detailed route using GPS data and relive the experience directly on your Apple Watch or iPhone. Your Dive Memories, Perfectly Organized Sorting through your dive photos and videos has never been easier. Our updated interface allows you to quickly organize, color-correct, and relive your underwater moments. Share the Joy, Keep Your Privacy Show off your latest dive location, compete on stats, or share logbooks and photos - only with the people you choose. You control who sees what, ensuring your privacy is always protected. Add your dive buddies, share your underwater adventures, and track your gear from popular brands—or create your own custom descriptions. The Complete Diving Companion Whether you’re planning your next dive, capturing underwater memories, or analyzing your dive stats, Oceanic+ is designed to make the most of your diving experience. - Dive Housing: Scuba and Gauge mode - Apple Watch Ultra: Scuba, Freediving, and Snorkeling modes - Pre-Dive Planner with real-time conditions, tides, and community insights. - No Deco Planner for calculated dives. - Real-Time Dive Data with depth, time, and ascent rate monitoring. - Activity Map to see all your dives on a world map. - Safety Tools like visual and haptic warnings. 7 Custom Watch Faces to match your style. - Stay Safe Underwater Oceanic+ uses the trusted Bühlmann algorithm to keep you informed and safe during every dive. - Plan Like a Pro Set your gas mix, max depth, dive time, and more with our powerful no-deco planner. - Track your Tissues Oceanic+ uses the trusted Bühlmann algorithm to allow you the flexibility of customization and efficiency for your decompression profiles. - Get the Big Picture Log dives, photos, videos, and stats with GPS-enhanced details for every location. - Go Deeper into Freediving With custom alarms, heart rate tracking, and more, our Freediving Mode helps you set new boundaries. - Make the Most of Your Dives With features like weight planning and easy dive log and media export, you’ll always have the ultimate dive tool with you. - Start with free basic features, or unlock advanced tools and features with plans starting at just $1.99/month, or choose the $129.99 Annual Family plan. Each plan is tailored to fit your needs. With Oceanic+, every dive is a story waiting to be told. Start your next adventure today. Visit https://www.oceanicworldwide.com/oceanic-plus/ for more.

Screenshots

Nitrox Buddy4 screens
Oceanic+ Scuba Diving Computer4 screens

Verdict

The call

The clearest difference is rating: Nitrox Buddy at 4.9 against Oceanic+ Scuba Diving Computer's 4.4. Nitrox Buddy also leads on review sentiment (96% vs 62%). Oceanic+ Scuba Diving Computer's advantage is update cadence (every 4 weeks vs every 7 months) and ratings volume (4.7K vs 489). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nitrox Buddy sells 1 one-off in-app purchase and Oceanic+ Scuba Diving Computer sells 7 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Nitrox Buddy holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Oceanic+ Scuba Diving Computer has 4.7K ratings behind it against 489, so its average is the more settled of the two. Written reviews point the same way: 96% of Nitrox Buddy's written reviews are positive against 62% of Oceanic+ Scuba Diving Computer's.

UpkeepUpdate frequency

Nitrox Buddy ships an update every 7 months, Oceanic+ Scuba Diving Computer every 4 weeks. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.

Scorecard6 real differences · 5 level
Nitrox Buddy versus Oceanic+ Scuba Diving Computer: the parameters behind the verdict, then further details
ParameterNitrox BuddyOceanic+ Scuba Diving Computer
PriceFreeFree
Rating4.9 (489 ratings) — better4.4 (4.7K ratings)
Positive reviews95.7% of reviews — better62.3% of reviews
Number of ratings4894.7K — better
Update frequencyEvery 7 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank—#66 — better
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS26.018.0 — better
Further details — not scored
Size6 MB76 MB
Age rating4+4+
DeveloperGereon SteffensHuish Outdoors, LLC

Customer experience

Nitrox Buddy

All ratings489 ratings
Positive97.3%
Neutral1.8%
Negative0.8%
Written reviews47 reviews
Positive95.7%
Neutral0.0%
Negative4.3%

Oceanic+ Scuba Diving Computer

All ratings4,706 ratings
Positive83.9%
Neutral3.9%
Negative12.2%
Written reviews2,007 reviews
Positive62.3%
Neutral8.9%
Negative28.8%

User reviews

Nitrox Buddy

From 489 App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Quick calculations
  • ✅ Accurate results
  • 💡 Free to use
  • 🎯 Essential for Nitrox divers

Room to improve

  • 📱 Ugly iPad icon
  • ⚠️ MOD calculation limited to 40% O2 in older versions
  • ⚠️ MOD calculation limited to 50% O2 in older versions
  • ⚠️ Needs to work with older iOS versions

Oceanic+ Scuba Diving Computer

From 4.7K App Store ratings

What we love

  • 🚀 Bright, clear display
  • 👍 Intuitive and easy to use
  • 🚀 Detailed dive logs and analytics
  • 👍 Helpful safety alerts and vibration feedback
  • 🚀 Seamless integration with Apple Watch

Room to improve

  • 🔒 Subscription-based model
  • 🐛 Syncing issues between watch and phone
  • 🐛 Unreliable dive mode activation
  • 🐛 Premature dive end when surfacing briefly
  • 🔒 Lack of air integration

Bugs and requests

Nitrox Buddy

Reported bugs

4 issues
  • iPad icon is ugly
  • MOD limit of 50% O2 despite 100% O2 setting (resolved)
  • MOD limit of 40% O2 (older version)
  • Does not work with older iOS versions

Requested features

4 requests
  • Add MOD 1.5 option
  • Allow MOD calculation up to 100% O2 and indicate max exposure duration
  • Change color for inappropriate mixes (e.g., 50% at 40m)
  • Support older iOS versions (5 & 6)

Oceanic+ Scuba Diving Computer

Reported bugs

4 issues
  • App crashes or freezes during dives
  • Dive data not syncing correctly between devices
  • Incorrect depth/time recording in some cases
  • Unexpected switches between dive and snorkel modes

Requested features

5 requests
  • Ability to manually add/edit past dives
  • Option to customize data screens and information displayed
  • Automatic dive mode activation upon submerging
  • Air integration with tank pressure monitoring
  • Offline functionality and dive log backup

In-app purchases

1 purchases

Nitrox Buddy

One-time1
  • Tip$0.99
7 purchases

Oceanic+ Scuba Diving Computer

Subscriptions5
  • Snorkeling+$1.991 Month
  • Freediving Monthly$4.991 Month
  • Monthly$9.991 Month
Show 2 more
  • Annual1 Year trial$79.991 Year
  • Annual Family1 Year trial$129.991 Year
One-time2
  • One day$0.99
  • One Day$4.99

Questions

Is Nitrox Buddy free?
Nitrox Buddy is free to download, with in-app purchases available.
Is Oceanic+ Scuba Diving Computer free?
Oceanic+ Scuba Diving Computer is free to download, with in-app purchases available.
Which has better reviews, Nitrox Buddy or Oceanic+ Scuba Diving Computer?
Nitrox Buddy is rated higher. Nitrox Buddy averages 4.9 out of 5 from 489 ratings, while Oceanic+ Scuba Diving Computer averages 4.4 from 4.7K ratings.
Do Nitrox Buddy or Oceanic+ Scuba Diving Computer have ads?
Neither Nitrox Buddy nor Oceanic+ Scuba Diving Computer shows ads.
Which is updated more often, Nitrox Buddy or Oceanic+ Scuba Diving Computer?
Nitrox Buddy ships an update every 7 months, and Oceanic+ Scuba Diving Computer every 4 weeks. Most recently, Nitrox Buddy was updated on October 22, 2026 and Oceanic+ Scuba Diving Computer on October 21, 2026.

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