Kalank vs Dive Toolbox

Kalank is the next-generation dive logbook: record, import, book and share all your underwater activities: scuba diving, snorkeling, freediving... YOUR LOGBOOK, ALWAYS UP TO DATE Log every dive in seconds: location, depth, duration, conditions, gear… Your dives are numbered, organized and available anytime, even offline on the boat. IMPORT FROM YOUR DIVE COMPUTER Connect your dive computer via Bluetooth or import a file: your dives land in your logbook automatically, with all their data. No more manual entry. BOOK YOUR DIVES IN A FEW TAPS Find a dive center, pick your trip, course or gear, and book directly from the app — for yourself or for someone else. CATALOG YOUR SIGHTINGS Fish, turtles, nudibranchs… Record the species you encounter on every dive and build your own underwater encyclopedia. SHARE YOUR ADVENTURES Find your dive buddies, follow their trips and keep your passion alive beyond the water. Whether you're a beginner in training or an experienced diver, Kalank is with you before, during and after every dive. Download Kalank and dive into the adventure.

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