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About
Log the dive. Name what you saw. Keep both in one place.
Oceanus is a scuba and freediving logbook with an AI marine species identifier built in. Record depth, time, tank and conditions — then point your camera at a fish and pin it to the dive it came from.
THE LOGBOOK
- Log by hand in under a minute: date and time, duration, max and average depth, location
- Import straight from a .FIT file exported by a Garmin dive computer, depth profile included
- Read the depth profile as a chart on the detail screen
- Scuba and freediving are both first-class types
- Conditions: salt, fresh or brackish water, water temperature, visibility from poor to excellent
- Gear: suit from shorty through 3/5/7 mm wetsuit, semi-dry and drysuit; tank from aluminum 63 through steel 120, doubles and sidemount; start and end pressure
- Free-text title and notes on every entry
- Link the species you identified to the dive they belong to
- Everything syncs to your account and follows you to any device you sign in on
AI SPECIES IDENTIFICATION
- Point the camera at a fish, shark, ray or invertebrate and get an identification back
- Species profiles with scientific name, depth range, geographic regions, danger level and conservation status
- Browse the catalog by category: fish, sharks, rays, mammals, reptiles, mollusks, crustaceans, cnidarians
- Save any species to favorites
- Everything you identify joins your personal collection
DIVERS, NOT JUST DIVES
- Find divers by nickname, follow them, and watch their diving arrive in the Friends feed
- Like the ones you enjoyed
- 34 achievements, from your first identification to a full-category sweep
- A global leaderboard scored on Ocean Score, recalculated nightly: species x10, identifications x2, achievements x25, streak x5
- A certification wallet for your scuba, freediving, specialty and first-aid cards. Medical entries stay private and are never published.
- Share an entry as a sticker sized for Instagram Stories
PREMIUM
Premium unlocks AI Dive Story: turn a photo from a diving trip into a cinematic underwater scene. A monthly generation limit applies and is shown in the app.
WHO IT IS FOR
Recreational scuba divers who want the logbook on their phone instead of in a soggy paper book. Freedivers. Snorkelers. Anyone who surfaces with a photo of a fish and no idea what it was.
Available in English, Spanish, Portuguese, Italian, Polish, Russian and Ukrainian.
Oceanus does not replace your dive computer and is not a dive planner. It does not calculate decompression or no-stop limits. Always dive within your training and follow your computer.
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What's New in Oceanus
1.0.31
November 9, 2026
Made for iPhone Duo. • Oceanus now uses both displays of iPhone Duo. Open it up for the catalog in four columns, your dive logs side by side, and more medals and Passport stamps in every row. Fold it, and you carry on right where you were. • The camera stays level when you hold your iPhone sideways, in the preview and in the photo it takes. • Onboarding, sign-in and Premium now fill wide screens edge to edge.
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Subscriptions & In-App Purchases
Premium Monthly
Unlimited species identifications, offline, no ads
$3.991 Month









