New: 60 species, from hammerheads to pygmy seahorses, and eight dive regions, including the Coral Triangle, Galápagos and Hawaii.
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.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
60 new species and eight new dive regions.
• 60 new species: reef sharks and pelagics like the Scalloped Hammerhead, Red Sea and Indo-Pacific reef fish, macro favorites like the Pygmy Seahorse and the Mimic Octopus, the Mandarinfish, and Caribbean and Mediterranean regulars.
• Eight new regions in the filter on the Species tab and on species pages: Black Sea, Arabian Sea, Andaman Sea, South China Sea, Coral Triangle, Gulf of California, Galápagos and Hawaii.
• If you photographed a species before it was in the catalog, your Detection History now shows it with its name, photo and details instead of "Not in catalog".
• The new species also appear on your Ocean Passport pages, so there's more to find.
Version 1.0.28
The developer, Mikhail Listratsenka, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
Location
Contact Info
User Content
Identifiers
Usage Data
Diagnostics
Other Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
User Content
Search History
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Mikhail Listratsenka
Size
56.8 MB
Category
Sports
Compatibility
Requires iOS 17.0 or later.
iPhone Requires iOS 17.0 or later.
Mac Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.