Submersion Dive Log vs Dive Wise App

Submersion is a comprehensive, open-source dive log for recreational and technical divers. Track dives, manage gear, analyze trends, and export to open formats. No subscriptions, no proprietary lock-in, no cost. COMPLETE DIVE LOGGING • Log unlimited dives with depth, duration, temperature, and conditions • Track entry/exit times with automatic surface interval calculation • Rate dives, add notes, and organize with custom tags • Record visibility, current, waves, weather, and water type • Support for 20+ dive types including night, wreck, cave, and technical DIVE COMPUTER INTEGRATION • Connect via Bluetooth or USB to well known dive computer models • Import dive profiles with one tap—no cables to your computer needed • Smart duplicate detection prevents importing the same dive twice • Supported brands: Shearwater, Suunto, Mares, Aqualung, Garmin, Oceanic, and many more ADVANCED PROFILE ANALYSIS • Interactive depth/temperature charts with zoom and pan • Bühlmann ZH-L16C decompression algorithm with gradient factors • Real-time NDL, ceiling, and tissue loading visualization • Ascent rate monitoring with color-coded warnings • O₂ toxicity tracking (CNS%, OTU, ppO₂) for nitrox and trimix divers • SAC/RMV calculation and trend analysis TECHNICAL DIVING READY • Multi-tank support with unlimited cylinders per dive • Full gas mix tracking: Air, Nitrox, Trimix, and pure O₂ • Gas switch markers on dive profiles • MOD, END, and EAD calculations built-in • Tank presets for quick logging (AL80, HP100, Steel 12L, and more) GEAR & EQUIPMENT MANAGEMENT • Track all your gear: regulators, BCDs, computers, suits, and more • Service history with reminders when maintenance is due • Create equipment sets for different diving configurations • Weight calculator based on exposure suit and conditions DIVE SITES & MAPS • Build your personal dive site database with GPS coordinates • Interactive map with clustered markers showing all your sites • Capture location from your phone or pick from the map • Automatic reverse geocoding fills in country and region • Track site details: depth range, difficulty, hazards, and access notes MARINE LIFE TRACKING • Log species sightings with counts on each dive • Pre-loaded database with common species • Build your personal life list over time BUDDIES & CERTIFICATIONS • Manage your dive buddy list with certification levels • Track your own certifications with expiry reminders • Associate buddies and instructors with each dive • Log dive centers and boat names STATISTICS & INSIGHTS • Total dives, bottom time, and depth records • SAC trends over months and years • Temperature preferences by season • Dive frequency charts and gas mix distribution • Deepest, longest, coldest, and warmest dive records CLOUD SYNC & BACKUP • Sync across all your devices via iCloud or Google Drive • Local-first design works completely offline • Export to UDDF, CSV, or PDF • Import from other dive log apps PRIVACY FOCUSED • No account required—start logging immediately • Your data stays on your device (unless you enable cloud sync) • No ads, no tracking, no subscriptions • Open source: inspect the code yourself on GitHub Whether you're a new diver logging your first open water dives or a technical diver tracking complex trimix profiles, Submersion adapts to your needs. Join the growing group of divers who trust Submersion to preserve their dive information. Questions or feedback? Visit our GitHub repository.

Dive Wise is a scuba dive planner, dive logbook, underwater camera, and site mapper built for divers who want one private toolkit on their phone. Plan dives, log dives fast, color-correct underwater photos and videos, map dive sites, and review your dive history without creating an account. Dive Wise is offline-first: your dive data stays on your device unless you choose to export, back up, or share it. PLAN SAFER DIVES - Build recreational or technical dive plans with NDL, gas, turn pressure, MOD, ppO2, CNS, OTU, and decompression information. - Use Buhlmann ZHL-16C with Gradient Factors or VPM-B with conservatism levels. - Plan multi-gas, multi-level, nitrox, trimix, and CCR dives. - Check range plans, gas blending, altitude settings, repetitive dives, air breaks, tides, and weather. LOG DIVES FASTER - Add a dive in seconds with a customizable quick-entry wizard. - Check in by GPS and prefill site, gear, gas, conditions, buddy, and operator details. - Detect dives automatically with compatible depth sensors. - Sync supported Shearwater computers over Bluetooth and avoid duplicate logs. - Import and export UDDF, JSON, and CSV, with full local backup and restore. CAPTURE BETTER UNDERWATER MEDIA - Use an underwater camera designed for diving, not land. - Auto-detect water type and apply real-time color correction. - Adjust correction by depth, red/magenta filters, strobes, and custom presets. - Use Pro controls such as ISO, shutter, white balance, focus, zoom, histogram, zebras, focus peaking, level, grid, compass, and safe-area overlays where supported. - Keep photos and videos grouped by dive session and linked to the matching dive log. EXPLORE YOUR DIVE HISTORY - View dives on a world map with grouped site markers. - Track stats, personal records, SAC trends, countries, buddies, and milestones. - Search your logbook with 14 filters and save presets. - Auto-group trips by country and date. - Map dive sites with waypoints, routes, depth profiles, hazards, marine life, and offline bathymetry tiles. MANAGE GEAR AND DIVE DATA - Save cylinders, gas mixes, gear templates, exposure suits, weights, and accessories. - Track equipment, certifications, buddies, operators, and maintenance reminders. - Identify and reference marine life with an offline species database. - Choose your units: meters or feet, Celsius or Fahrenheit, bar or psi, kilograms or pounds. Built by divers for divers, Dive Wise is a practical mobile toolkit for planning, logging, filming, mapping, and learning from every dive. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://divewisely.com/privacy