Comparison

MaxOpDepth vs Decosoft

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

Head to head
About

MaxOpDepth

Features
Read full description

This provides a simple graphical tool for scuba divers calculating maximum operating depth. It provides both iphone and Apple Watch versions. It's important to remember that while scuba diving, it is always recommended to double check your calculations with reference to the relevant diver tables. While this app may prove useful, it's no substitute for using your own brain and being fully aware of the dangers of scuba diving. Enjoy !

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

MaxOpDepth2 screens
Decosoft4 screens

Verdict

The call

The clearest difference is in-app purchases: MaxOpDepth at none against Decosoft's 8. MaxOpDepth also leads on device support (4 vs 2) and iOS requirement (13.0 vs 16.4). Decosoft's advantage is update cadence (every 2 weeks vs every 16 months). On price and ads 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. MaxOpDepth asks for nothing beyond the download.

UpkeepUpdate frequency

MaxOpDepth ships an update every 16 months, Decosoft every 2 weeks. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 4 level
MaxOpDepth versus Decosoft: the parameters behind the verdict, then further details
ParameterMaxOpDepthDecosoft
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 16 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size1 MB47 MB
Age rating4+4+
DeveloperJason Klug-HorsnellMichael Czolko

In-app purchases

None

MaxOpDepth

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 MaxOpDepth free?
MaxOpDepth is free to download, with no in-app purchases.
Is Decosoft free?
Decosoft is free to download, with in-app purchases available.
Do MaxOpDepth or Decosoft have ads?
Neither MaxOpDepth nor Decosoft shows ads.
Which is updated more often, MaxOpDepth or Decosoft?
MaxOpDepth ships an update every 16 months, and Decosoft every 2 weeks. Most recently, MaxOpDepth was updated on October 2, 2026 and Decosoft on October 8, 2026.

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