Your dive log,
even offline.
Reef is an offline-first scuba diving logbook. Log dives, track gear and certifications, view stats — all synced when you're back online.
Reef is an offline-first scuba diving logbook. Log dives, track gear and certifications, view stats — all synced when you're back online.
Reef works where other apps fail — on liveaboards, remote islands, and anywhere with no signal.
Every feature works without internet. Data syncs automatically when connectivity returns.
Attach photos to every dive. Stored locally first, backed up to the cloud automatically.
Track depth, bottom time, air consumption, and more with interactive charts and yearly breakdowns.
Keep track of your equipment, service intervals, and how many dives each piece of gear has seen.
Store all your diving certifications with expiry reminders so you never miss a renewal.
Pin your dive sites on an interactive map and see your diving adventures around the world.
Start logging your dives today. Free for up to 25 dives — no credit card required.
Download Reef