Currents vs Submersion Dive Log

Effortless Dive Logging for Passionate Divers Designed for divers who go below the surface more than 10 times a year, from weekend quarry dives to deep trips in the Maldives. Log faster, plan smarter, and keep your dive details and training ready wherever you dive. 1. Simplified Dive Logging - Log a dive in under 30 seconds by entering depth, site, and dive partners. - Import dive files in UDDF, Subsurface XML, or FIT format from your dive computer software or other logging apps. - Back up your logs with UDDF export, a universal format supported by most dive-logging software. 2. Reliable Dive Site and Shop Discovery - Explore 10,000+ dive sites. - Find dives by type, entry point, and skill level. 3. Save Your Favorites - Bookmark must-visit sites like Silfra Fissure and the dive shops divers trust, so your next trip takes less time to plan. 4. Real Reviews from Real Divers - Rate sites and dive shops, leave reviews, and read what other divers say, from Cozumel to local favorites. 5. Streamline Your Dive Management - Keep certifications accessible: store your PADI, SSI, or NAUI cards digitally for offline access, even on remote liveaboard trips. - Track your trends: review maximum depth, SAC rate, and dive counts over 1 month, 6 months, 1 year, or all time. - See your stats at a glance: add the No-Fly and Dive Stats widgets to your Home or Lock Screen, no need to open the app. Upgrade to Pro for more - Wireless dive computer sync: Shearwater, ScubaPro, Suunto, and 15+ other dive computers. No cables, no manual typing. Check compatibility at trycurrents.app/compatibility. - Live sync progress: watch dive computer downloads update live on your Lock Screen or Dynamic Island. - Comprehensive dive logs exports: Export in CSV and PDF. - Gear kits and service history: Track each piece of gear, create kits, and get reminders for upcoming servicing. - Dive tools: Nitrox MOD Calculator, Nitrox Best Mix Calculator, Weight Calculator, and Unit Conversion, based on your dive logs and established formulas. Learn more: Terms of Service: https://www.trycurrents.app/terms-of-service Privacy Policy: https://www.trycurrents.app/privacy-policy

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.