Comparison

Nitrox Virtual Analyzer vs krakentools

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

Head to head
About

Nitrox Virtual Analyzer

Features
Read full description

Our Nitrox Virtual Analyzer is the first of its kind in the world. It gives you the ability to safely and conveniently learn how to operate a Nitrox Analyzer, used for scuba diving. Without having to visit a dive center to borrow and analyzer and cylinder of Nitrox or go to the expense of purchasing an analyzer & Nitrox cylinder. The app allows you to make mistakes in safety, and let the app guide you through the correct way to calibrate and analyze a Nitrox gas mix. The app has been written by experienced diving instructors, and closely resembles a real Nitrox Analyzer in both its look, operation, and response. So when you actually use a real Nitrox analyzer you will be familiar with its use. This app gives you the ONLY way to get certified by any diving agency for Nitrox without attending a class! A requirement for most Nitrox courses is to analyze a Nitrox mix, to obtain certification; if you haven't done that you should consult your instructor/dive center if you have correctly fulfilled the requirements of your course. NOTE: This app is for simulation purposes only, it CAN NOT actually measure the oxygen percentage in a gas. There is no Oxygen sensor in your mobile device!

About

krakentools

This comprehensive dive toolbox offers planning and safety features for recreational, Nitrox, TEC, and CCR divers. It includes a digital logbook with Bluetooth connectivity for various dive computers, extensive import/export options, and tools for underwater media editing.

Highlights
  • Dive planner for various dive types
  • Decompression planner with Bühlmann ZH-L16C
  • Gas planning and analysis tools
  • Digital logbook with Bluetooth sync
  • Import/export dive data
  • Underwater photo/video color correction
  • CCR-specific dive tools
Features
Read full description

KrakenTools – the all-in-one toolbox for recreational, Nitrox, TEC, and CCR divers. Version includes 26 professional dive tools, a reworked digital logbook, Bluetooth support for many dive computers, expanded import/export functions, and support for 164 languages. DIVE TOOLS FOR PLANNING AND SAFETY • Dive planner for air, Nitrox, single, repetitive, and multi-dive plans • Decompression planner with Bühlmann ZH-L16C • NDL, Nitrox, Trimix, Best Mix, and gas analysis • Gasblender with real-gas and Z-correction • CNS/OTU, gas density, minimum gas, rock bottom, turn pressure, and lost gas • Bailout, ICD, EAD, EADD, END, ENP, and CCR setpoint • New CCR tools: O₂ cell tracker, scrubber calculator, and scrubber tracking • Lift bag, weighting, and scenario calculators DIGITAL LOGBOOK • Reworked logbook with improved structure, stability, and interfaces • Bluetooth for Shearwater, Heinrichs Weikamp, Ratio, DiveSoft, Halcyon, DiveSystem, Scubapro, Mares, Aqua Lung, Cressi, Oceanic, and more • Import from Scubapro LogTRAK, Garmin FIT, DiveLog, Suunto, and other formats • Export as JSON, CSV, UDDF, DL7, Subsurface XML, and PDF • Dive profiles, statistics, analysis, projects, and groups KRAKENSTUDIO • UW Color Fix becomes KrakenStudio • Photo and video color fix for underwater media • Beta camera connection for Insta360, GoPro, DJI Osmo, and other action cams KrakenTools combines dive planning, gas planning, logbook, dive computer connection, media editing, and analysis in one modern app – developed by divers for divers. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Nitrox Virtual Analyzer4 screens
krakentools4 screens

Verdict

The call

The clearest difference is in-app purchases: Nitrox Virtual Analyzer at none against krakentools's 3. Nitrox Virtual Analyzer also leads on iOS requirement (13.0 vs 15.0). krakentools's advantage is update cadence (every 8 days vs every 24 months). On price, ads and device support 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. krakentools sells 3 in-app purchases, starting at $3.99 per month. Nitrox Virtual Analyzer asks for nothing beyond the download.

UpkeepUpdate frequency

Nitrox Virtual Analyzer ships an update every 24 months, krakentools every 8 days. The most recent releases landed on September 26, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 5 level
Nitrox Virtual Analyzer versus krakentools: the parameters behind the verdict, then further details
ParameterNitrox Virtual Analyzerkrakentools
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 24 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size6 MB140 MB
Age rating4+4+
DeveloperJames CostelloArndt Kemper

In-app purchases

None

Nitrox Virtual Analyzer

No in-app purchases

3 purchases

krakentools

Subscriptions2
  • KrakenTools Pro - Monthly$3.991 Month
  • KrakenTools Pro - Yearly$44.991 Year
One-time1
  • KrakenTools Pro Version$49.99

Questions

Is Nitrox Virtual Analyzer free?
Nitrox Virtual Analyzer is free to download, with no in-app purchases.
Is krakentools free?
krakentools is free to download, with in-app purchases available.
Do Nitrox Virtual Analyzer or krakentools have ads?
Neither Nitrox Virtual Analyzer nor krakentools shows ads.
Which is updated more often, Nitrox Virtual Analyzer or krakentools?
Nitrox Virtual Analyzer ships an update every 24 months, and krakentools every 8 days. Most recently, Nitrox Virtual Analyzer was updated on September 26, 2026 and krakentools on September 29, 2026.

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