Descend: Dive Log

Descend is an offline-first scuba dive logbook. Log every dive in detail, build a marine life collection as you go, and watch your own map of the world fill in one country at a time. No spreadsheets, no faded logbook pages — just one place that grows with every dive, whether you've got a signal or not. LOG EVERY DIVE Site, date, depth, duration, air used, gas mix, conditions, and more — browsed as clean, scannable cards you can sort and search. BUILD YOUR MARINE LIFE COLLECTION 114 species to find, from reef fish to sharks and rays. Log a sighting on any dive and watch your collection fill in. WATCH YOUR MAP FILL IN Every country you've dived is marked automatically. Plus, keep a wishlist of where you want to go next. TRACK YOUR WHOLE DIVING CAREER Totals, personal bests, and averages calculated automatically — plus 44 achievements to unlock as you dive. GEAR & CERTIFICATIONS Keep every c-card and piece of gear alongside your dive history. IMPORT & EXPORT Bring your existing history in via UDDF or CSV. Export a PDF copy of your log any time, fully offline. Works completely offline. No account required to start — only needed if you want your log backed up and synced across devices.