mvPlan vs Super Dive Log & Planner

Plan your dives with confidence. mvPlan is a full-featured decompression planner for recreational and technical divers, built on the proven Buhlmann ZHL-16B and ZHL-16C algorithms with gradient factor conservatism. OPEN CIRCUIT & CLOSED CIRCUIT Plan dives on standard open circuit or CCR rebreathers with fixed or dynamic setpoints, multiple diluents, and full bailout planning with stress gas consumption. ALL GAS MIXES Air, Nitrox, Trimix, Heliox, pure O2 -- use any combination with automatic MOD, END, EAD, gas density and ppO2 calculations. MULTI-LEVEL PROFILES Build complex dive profiles with multiple depth changes, gas switches, and diluent changes. mvPlan computes the optimal decompression schedule for the entire profile. SAFETY MONITORING Track CNS and OTU oxygen toxicity, narcosis exposure (END), gas density alerts, and isobaric counter-diffusion (ICD) risk. Configurable alerts keep you informed. GAS PLANNING Calculate required gas volumes for each mix with configurable RMV rates for bottom, deco, and stress phases. Tank capacity checks ensure you carry enough gas. BAILOUT PLANNING Full worst-case bailout calculations for CCR divers: configurable bailout delay, stress RMV, and independent bailout gas selection with complete decompression schedule. VISUAL DIVE PROFILE Interactive depth/time graph with ceiling overlay, gas change markers, and pinch-to-zoom. Tap any segment to inspect tissue saturation across all 16 compartments. PDF EXPORT & SHARING Generate print-ready dive tables with all parameters, deco schedule, and gas requirements. Share plans directly from your device. SAVE & ORGANIZE Save unlimited dive plans, import/export as JSON, rename and manage your plan library. FULLY CONFIGURABLE Gradient factors (with presets), ascent/descent rates, last stop depth, altitude compensation up to 4000m, salt/fresh water, metric or imperial units. 6 LANGUAGES English, French, German, Spanish, Italian, Polish. Dark and light themes for comfortable display in any conditions. Free and open source (GPL). No ads. No account required. No data collection.

Super Dive Log & Planner combines all of the features of a first-class dive log with an integrated world-class dive planner that learns from the dives you log. It is simple enough for recreational divers on their first open water dives, but grows with you through technical and DIR diving. THE LOG • Integrates with all popular dive computers to display your complete profile • Record dive sites with GPS, or lookup from the built-in database of thousands of sites • Marine life sightings with lookups from iNaturalist, OBIS and WoRMS, and a live list of what lives near any site • Track what you wore, the gear you used, and how it all made you feel • Draw in your narrative — a site map, the route around a wreck — with Apple Pencil, a finger, or the mouse. • Conditions fetched for every logged dive: the tide, weather, water column and currents that were actually running • Embed your photos • Gear tracking with service reminders; statistics across your whole history • The log correctly handles diving with drysuits, sidemount, CCR/SCR, trimix, stages, etc. THE PLANNER • Helps you balance your rig by estimating how much lead you’ll need based on your gear and dive history • What to wear, learned from what actually kept you warm at that temperature • Bühlmann ZH-L16 A/B/C decompression planning with gradient factors, tested to match Decoplanner • Recreational no-deco limits, Technical mode, and a DIR mode implementing GUE procedures — standard gases, minimum gas, staged ascent rates, oxygen breaks — tested to match Decoplanner • Helps you plan your dive with information about the current, expected visibility, expected wildlife, tides, and weather • Nitrox, trimix, SCR and CCR with setpoints • Lost-gas contingencies and deeper/longer what-ifs, priced into gas requirements • Altitude, water type and salinity handled throughout SITES AND DIVE SHOPS • A directory of thousands of dive sites worldwide, plus your own • Surroundings: charted depth, protected areas, wrecks with their history, today's reef reading • The site on a nautical chart (NOAA, EMODnet, GEBCO). • Dive shops, fill stations and clubs near you or near a site, with hours and directions YOUR COMPUTER, YOUR OLD LOGBOOK • Bluetooth downloads from all major dive computer brands • Imports from Subsurface, MacDive, Diving Log 6.0, Shearwater Cloud, divelogs.de, Ratio, DAN DL7, UDDF, Garmin FIT, Suunto, CSV, and Apple Watch Ultra dives from Apple Health • Two-way with divelogs.de: import your dives, and send new ones back to your account • Export your dives to DAN in DL7 format, the file DAN's dive-data tools read • Manage up to six logbooks at a time AI INTEGRATION • On Mac, a built-in MCP server opens your log to Claude, ChatGPT or any MCP client • Use AI to maintain your logbook, fix import errors, and plan your dives EVERYWHERE YOU DIVE • iPhone, iPad and Mac with iCloud sync • Twenty-eight languages • Local-first storage; your logbook stays yours • No account required Logging is unlimited and free. Premium planning features are free for your first week. Dive planning software is a tool, not training. Always plan and dive within the limits of your certification, verify schedules against your training and tables, and carry a dive computer. No algorithm can guarantee you will not get decompression sickness. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/