Comparison

Dive Toolbox vs krakentools

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

Head to head
About

Dive Toolbox

Features
Read full description

DiveToolbox — Professional dive planning and gas calculation tools for recreational and technical divers. DECOMPRESSION DIVE PLANNER Plan single-level and multi-level dives using the Bühlmann ZH-L16C algorithm with configurable gradient factors. Get detailed ascent profiles, gas switch schedules, and comprehensive safety analysis including CNS, OTU, gas density, and END monitoring. GAS BLENDING CALCULATOR Step-by-step fill instructions for Nitrox and Trimix blending. Supports partial pressure and continuous flow methods with real-time MOD calculations. MOD / EAD / END CALCULATOR Instantly calculate Maximum Operating Depth, Equivalent Air Depth, and Equivalent Narcotic Depth for any gas mix. GRADIENT FACTORS EXPLORER Visualize how GF Low and GF High affect no-decompression limits and decompression schedules. SAC RATE CALCULATOR Calculate your Surface Air Consumption rate from dive data to improve gas planning accuracy. ROCK BOTTOM CALCULATOR Determine minimum gas reserves for safe ascent, including emergency scenarios with configurable safety margins. SUCCESSIVE DIVE PLANNER Plan repetitive dives accounting for residual nitrogen and helium tissue loading from previous dives. UNIT CONVERSIONS Convert between metric and imperial units for depth, pressure, volume, and temperature. KEY FEATURES • Multi-gas support with automatic deco gas switching • Save and organize dive plans in folders • Save tank presets for quick planning • Share plans via link or QR code • Export plans as PDF • Customizable diver profile (GF, SAC, PPO2, speeds) • Dark and light themes • Available in 7 languages: English, French, German, Spanish, Italian, Polish, Russian Terms of Use: https://divetoolbox.com/en/terms Privacy Policy: https://divetoolbox.com/en/privacy

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

Dive Toolbox4 screens
krakentools4 screens

Verdict

The call

Dive Toolbox and krakentools are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Dive Toolbox sells 2 in-app purchases, starting at $5.99 per month and krakentools sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Dive Toolbox ships an update every 6 days, krakentools every 8 days. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

ScorecardNo meaningful differences
Dive Toolbox versus krakentools: the parameters behind the verdict, then further details
ParameterDive Toolboxkrakentools
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 6 days — betterEvery 8 days
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size33 MB140 MB
Age rating4+4+
DeveloperOnosiaArndt Kemper

In-app purchases

2 purchases

Dive Toolbox

Subscriptions1
  • Premium Monthly7 Days trial$5.991 Month
One-time1
  • Premium Lifetime$24.99
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 Dive Toolbox free?
Dive Toolbox is free to download, with in-app purchases available.
Is krakentools free?
krakentools is free to download, with in-app purchases available.
Do Dive Toolbox or krakentools have ads?
Neither Dive Toolbox nor krakentools shows ads.
Which is updated more often, Dive Toolbox or krakentools?
Dive Toolbox ships an update every 6 days, and krakentools every 8 days. Most recently, Dive Toolbox was updated on September 24, 2026 and krakentools on September 10, 2026.

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