Comparison

Decosoft vs Dive Shearwater

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

Dive Shearwater

This app serves as a digital dive log, allowing divers to meticulously record their underwater adventures. It features interactive maps to track explored locations and integrates with specific hardware to automatically capture dive site coordinates. Designed for simplicity and reliability, it helps divers organize records and plan future dives.

Highlights
  • Interactive dive maps
  • Automatic dive site coordinate capture
  • Streamlined user experience
  • Dive history tracking
  • Gear setup refinement
  • Dive planning tools
Features
Read full description

The world is your dive log. Built for simplicity and reliability, Dive Shearwater gives you the tools you need now and the foundation for even more powerful features in the future. More than just another dive log - With an improved user flow and streamlined experience, Dive Shearwater feels intuitive and easy to use. Keep your records organized and focus on the details that matter most to every diver. Track your adventures - Use the interactive dive maps to build your own personal guide of the places you’ve explored. Automatically capture dive site coordinates with the new Swift GPS transmitter on any air integrated Shearwater computer. Whether you're marking new dive sites, refining your gear setup, or simply keeping your dive history pristine, Dive Shearwater delivers a seamless, intuitive experience tailored for divers of all skill levels who value precision and adventure. Together, Shearwater dive computers and the Dive Shearwater app form a complete ecosystem—delivering precision in the water and clarity on land. Dive Shearwater builds on our core principles of being powerful, simple and reliable, while giving you the dive tools you need to track, reflect, and plan your next adventure with confidence.

Screenshots

Decosoft4 screens
Dive Shearwater4 screens

Verdict

The call

The clearest difference is review sentiment: Decosoft at 100% against Dive Shearwater's 7%. Dive Shearwater's advantage is in-app purchases (none vs 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. Dive Shearwater asks for nothing beyond the download.

UpkeepUpdate frequency

Decosoft ships an update every 2 weeks, Dive Shearwater monthly. The most recent releases landed on October 8, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 7 level
Decosoft versus Dive Shearwater: the parameters behind the verdict, then further details
ParameterDecosoftDive Shearwater
PriceFreeFree
Rating—1.5 (45 ratings) — better
Positive reviews100.0% of reviews — better7.0% of reviews
Number of ratings—45 — better
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.1 — better
Further details — not scored
Size47 MB103 MB
Age rating4+17+
DeveloperMichael CzolkoShearwater Research

Customer experience

Decosoft

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Dive Shearwater

All ratings45 ratings
Positive4.4%
Neutral8.9%
Negative86.7%
Written reviews57 reviews
Positive7.0%
Neutral8.8%
Negative84.2%

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

Dive Shearwater

No in-app purchases

Questions

Is Decosoft free?
Decosoft is free to download, with in-app purchases available.
Is Dive Shearwater free?
Dive Shearwater is free to download, with no in-app purchases.
Do Decosoft or Dive Shearwater have ads?
Neither Decosoft nor Dive Shearwater shows ads.
Which is updated more often, Decosoft or Dive Shearwater?
Decosoft ships an update every 2 weeks, and Dive Shearwater monthly. Most recently, Decosoft was updated on October 8, 2026 and Dive Shearwater on October 19, 2026.

Other comparisons