Krakentools

Krakenwerk UG

In-app purchases

About this app

Krakentools – Dive Calculators, Logbook & Planner

The professional dive toolbox for ambitious recreational divers and technical divers. Krakentools combines over 22 specialized dive calculators, a complete digital logbook and powerful planning tools in a single app – fully offline and available in 89 languages.

Krakentools was built by divers for divers – independent, with no ties to any manufacturer. A neutral toolbox designed to support you in planning and documenting your dives.

Plan recreational dives within no-decompression limits, run complex decompression plans using the Bühlmann ZH-L16C algorithm or calculate multilevel dives with multiple gas switches – precise results in seconds. Load preconfigured equipment setups, calculate gas mixes and check safety parameters like CNS/OTU, minimum gas and rock bottom in one seamless workflow.

Connect your dive computer directly via Bluetooth – Shearwater, Suunto, Garmin, Mares and many more. Download your complete logbook wirelessly and store dive profiles with depth curves in your personal dive record. No cable, no PC, no detours.

Share your experiences: Krakentools creates attractive social media cards from your dive data for Instagram, WhatsApp and other platforms – featuring depth, time and your personal dive stamp.

With UW Color Fix you bring the true colors back to your underwater photos – the tool corrects the blue and green cast caused by water and shows you what the scene really looked like.

CALCULATORS FOR EVERY SITUATION
• Dive Planner (NDL) for recreational divers
• Deco Planner with Bühlmann ZH-L16C algorithm
• Nitrox, Trimix & Best Mix analysis
• Gas Blender – mixing recipes for any setup
• Gas density calculation (EN 13949)
• CNS/OTU oxygen toxicity
• Minimum Gas & Rock Bottom
• Turn Pressure & Lost Gas calculation
• Bailout Planner with multi-gas support
• ICD Check (Isobaric Counterdiffusion)
• EAD, EADD, END & ENP equivalent depths
• RMV Calculator (Respiratory Minute Volume)
• Stage Planner & Gas Switch
• Lift Bag Calculator
• Scenario Planner for complex dives
• Setpoint Calculator for CCR divers

DIGITAL LOGBOOK & DIVE RECORD
• Bluetooth import from dive computers (Shearwater, Suunto, Garmin, Mares & more)
• Dive profiles with depth curves
• Statistics & analysis
• Projects & dive groups
• Complete dive record – all data in one place

EXTRAS
• UW Color Fix – color correction for underwater photos
• Wet Notes – digital underwater notes
• Gas Analyzer Assistant
• GF Comparison for conservative settings

FEATURES
• 100% offline – no internet required
• 89 languages supported
• Dark mode optimized
• Bluetooth connection to dive computers
• Save & load equipment configurations
• Save & share results
• Social media sharing with cards
Independent. Offline. Precise. Krakentools – your reliable buddy for dive planning. Built by divers for divers.

What’s new

• Bluetooth support for Shearwater, Heinrichs Weikamp, Ratio, Scubapro and more
• New CCR tools for O₂ cells, scrubber calculator and scrubber tracking
• Enhanced planner for air, Nitrox, single, repetitive and multi-dives
• Kraken Studio with photo/video colour fix
• Camera beta for GoPro, DJI Osmo and Insta360
• Improved logbook import and export in many formats
• App now supports 164 languages