Comparison

Decosoft vs Qlogger

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

Head to head
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!

About

Qlogger

Features
Read full description

Software designed for and dedicated to Gliding Clubs. Use at Launch Point to replace paper Flight Logs. Maintains Membership and Aircraft Registers and Flight Logs. Members have on-line access to view their flights. Automatically generated Invoices for flights and membership fees. Facility to upload Flights, Invoices, Payments in and out directly to Accounting Systems. New Version with multi-layer pricing, Duty Roster and Calendar modules.

Screenshots

Decosoft4 screens
Qlogger4 screens

Verdict

The call

The clearest difference is in-app purchases: Qlogger at none against Decosoft's 8. On price, update cadence, 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. Qlogger asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 7 level
Decosoft versus Qlogger: the parameters behind the verdict, then further details
ParameterDecosoftQlogger
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.6 — better
Further details — not scored
Size47 MB21 MB
Age rating4+4+
DeveloperMichael CzolkoMinaexpress

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
None

Qlogger

No in-app purchases

Questions

Is Decosoft free?
Decosoft is free to download, with in-app purchases available.
Is Qlogger free?
Qlogger is free to download, with no in-app purchases.
Do Decosoft or Qlogger have ads?
Neither Decosoft nor Qlogger shows ads.
Which is updated more often, Decosoft or Qlogger?
Decosoft ships an update every 2 weeks, and Qlogger every 2 weeks. Most recently, Decosoft was updated on October 8, 2026 and Qlogger on October 28, 2026.

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