Dive Toolbox vs WindWaterSail Forecast

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

WindCurrents shows you the two things that decide a day on the water — what the water is doing and what the wind is doing — on one screen, on one time axis. Pick a launch site or any NOAA station and you get the tide or current curve with wind stacked directly beneath it, sharing a single cursor. Drag across the chart and both readings move together, so a max ebb sits right above the breeze that will be blowing against it. WHAT YOU GET - Tide and current charts from NOAA CO-OPS, the same predictions the agency publishes. Night is shaded, flood fills above the zero line, ebb below, and arrows show which way the water actually sets. - Wind on the same axis, colored by strength, plus a forecast grid showing wind and gusts through the day. - High and low water, max flood, max ebb and slack, with the phase you are currently looking at marked. - Day, week and multi-day views — jump to today, the coming weekend, or any date. - The National Weather Service Coastal Waters Forecast for the marine zone nearest you, with any small craft advisory brought to the top. - Sunrise and sunset, so you can see whether a good window lands in daylight. CONDITIONS ALERTS For wind sports, WindCurrents scores every half hour of the forecast and tells you when it is worth going out — and, just as usefully, when it is not. Windows are graded by the gear they suit, because 13 knots is a good day on a foil and a wasted trip on a small sail. Set the lightest wind you will bother with and nothing below it gets flagged. Optional notifications give you up to three days' warning. Crissy Field in San Francisco is scored against published local guidance — slack going into the ebb, the wind sector that works, and the flood-plus-southwest combination that makes it hard to get back to the beach. Everywhere else uses general wind-sport criteria, and the app tells you which it used. COVERAGE Anywhere NOAA publishes predictions: roughly 3,500 tide stations and 4,400 current stations across the United States. Ninety-three launch sites ship with the app across nineteen regions, and you can plan from any station whether or not a launch site is listed. NO ACCOUNT, NO TRACKING There is no sign-up, no analytics and no advertising. Nothing you do in the app is sent anywhere. Your location, if you allow it, is used only to draw your position on the map and is never transmitted. Free, with no subscription and nothing to unlock. IMPORTANT Tide and current predictions are astronomical only. They take no account of wind, river runoff or barometric pressure, all of which move real water. Conditions scoring is a planning aid, not a forecast and not a safety verdict. Check conditions yourself before you launch. Data from NOAA CO-OPS, the National Weather Service and Open-Meteo. Not affiliated with, or endorsed by, any of them.