Comparison

Nitrox Virtual Analyzer vs Decosoft

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

Decosoft

Plan your dives with this comprehensive tech diving tool. It offers a user-friendly interface, advanced decompression models, and various dive calculators to ensure safe and enjoyable underwater adventures. Save, share, and prepare for every dive with detailed insights.

Highlights
  • User-friendly dive planning interface
  • Bühlmann decompression model
  • Detailed runtime table with graphs
  • Support for OC and CCR
  • Multiple dive calculators
  • Save and share dive plans
Features
Read full description

Meet Decosoft - your tech diving planner in your pocket. Benefit from a variety of features that help you compose the best dive plan. Easily prepare for your adventure ahead so you can enjoy every dive to the fullest. Main features: - User-friendly interface, designed to simplify dive planning - Bühlmann decompression model with gradient factors - Advanced dive settings - Detailed runtime table with graph, gas consumption and more dive details - Easy lost-gas preview of the dive plan - Support for Open Circuit (OC) and Closed Circuit Rebreathers (CCR) - Repetitive dives - Save tanks and plans for further use - Share your dives with others Diving calculators included: - Maximum bottom time - SAC - Surface air consumption - MOD - Maximum operational depth - END - Equivalent narcotic depth - EAD - Equivalent air depth - Best mix for depth - Gas blending Dive safely, dive with Decosoft. Try today!

Screenshots

Nitrox Virtual Analyzer4 screens
Decosoft4 screens

Verdict

The call

The clearest difference is in-app purchases: Nitrox Virtual Analyzer at none against Decosoft's 8. Nitrox Virtual Analyzer also leads on iOS requirement (13.0 vs 16.4). Decosoft's advantage is update cadence (every 2 weeks 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. Decosoft sells 8 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, Decosoft every 2 weeks. The most recent releases landed on May 19, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 5 level
Nitrox Virtual Analyzer versus Decosoft: the parameters behind the verdict, then further details
ParameterNitrox Virtual AnalyzerDecosoft
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 24 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better16.4
Further details — not scored
Size6 MB47 MB
Age rating4+4+
DeveloperJames CostelloDecosoft s.r.o.

In-app purchases

None

Nitrox Virtual Analyzer

No in-app purchases

8 purchases

Decosoft

Subscriptions5
  • Monthly Partner1 Month trial$3.991 Month
  • Monthly14 Days trial$3.991 Month
  • Annual Partners1 Year trial$39.991 Year
Show 2 more
  • Ultimate14 Days trial$39.991 Year
  • Ultimate Offer1 Year trial$39.991 Year
One-time3
  • Ultimate$20.99
  • Ultimate$23.99
  • Ultimate$29.99

Questions

Is Nitrox Virtual Analyzer free?
Nitrox Virtual Analyzer is free to download, with no in-app purchases.
Is Decosoft free?
Decosoft is free to download, with in-app purchases available.
Do Nitrox Virtual Analyzer or Decosoft have ads?
Neither Nitrox Virtual Analyzer nor Decosoft shows ads.
Which is updated more often, Nitrox Virtual Analyzer or Decosoft?
Nitrox Virtual Analyzer ships an update every 24 months, and Decosoft every 2 weeks. Most recently, Nitrox Virtual Analyzer was updated on May 19, 2026 and Decosoft on September 21, 2026.

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