Fish identification · Catch log · Dive log
Identify fish.
Log catches & dives.
Build your collection.
Point your camera at a fish, or describe it by its traits. Seabook names the species, then keeps it in your catch log, dive log and collections.
What kind of fish is this?
Seabook is a fish identifier app for iOS and Android. Take a photo and it suggests the likely species. No good photo? Use Trait Search: filter by color, pattern, fin shape, body type, habitat, region or size until one fish is left.
Then log it. Anglers keep a Catch Log with length, weight, bait or lure and spot. Divers keep a Dive Log with location, depth and sightings. Everything can live in your own collections.
Built around real moments
Four moments. One app in your pocket.
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01 After the dive
“When I surface and don’t know what I saw, I want to identify it from my photo so I can log it and learn more.”
Photo ID. Snap or upload, get instant suggestions, read the species facts.
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02 Two fish look the same
“When species look similar, I want quick trait comparisons so I can make a confident call.”
Trait comparison. Color, pattern, fins, tail, size and habitat side by side, with common look-alikes highlighted.
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03 Planning the next trip
“When I plan my next trip, I want to review past sightings so I can find and recognize them again.”
Logbook. Every catch and dive with date, place, depth, notes and photos.
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04 Sharing with a buddy or class
“When I share with my buddy or class, I want clear names and images so everyone’s on the same page.”
Collections. Trip lists, target species, study sets and favorites, ready to share.
Trait Search
No good photo?
Find the fish by traits.
Murky water, a fish that got away, a blurry shot. Tell Seabook what you remember and narrow the list until one species is left.
- Color
- Pattern
- Fin shape
- Body type
- Habitat
- Region
- Size
- ColorRed
- PatternBlue spots
- HabitatCoral reef
- RegionIndo-Pacific
- Yellowtail snapper Ocyurus chrysurus
- Crimson snapper Lutjanus erythropterus
- Red hind Epinephelus guttatus
- Coney Cephalopholis fulva
- Leopard coral grouper Plectropomus leopardus
Illustration. Real results come from the Seabook catalog.
Catch Log for anglers
Every hook-up,
on the record.
Identify the fish, then log it in seconds. Date, time and GPS fill in on their own (if you allow location), so you only add what matters.
Start your Catch Log- Species
- Identified by photo or traits
- Length / weight
- Your measurements
- Bait or lure
- What it took
- Spot
- Organize by trips, spots & targets
- Photo & notes
- Conditions, gear, the story
- Export to CSV
- Coming soon
Diving instead?
The Dive Log records location, depth, notes and every species you sighted, right next to your catches.
How it works
From “what’s that?” to logged, in four steps.
Works on the dock, the boat, or 20 meters underwater.
- 1
Spot or catch
From shore, boat, or underwater.
- 2
Take a photo
Get instant suggestions.
- 3
Compare traits
Color, pattern, fin and tail, body type, region.
- 4
Log it
Save a catch or a sighting with notes and location.
Who it’s for
Made for people who spend time near fish.
- Anglers
- Confirm the species, keep a Catch Log, plan target lists.
- Divers
- Underwater photo ID, a Dive Log with depth and location, every species you’ve seen.
- Ocean lovers
- Learn names and traits, keep a gallery of sightings, share collections.
- Biology beginners
- Search by anatomical traits, build study sets, take notes.
Offline mode
Catalog, trait filters, catch log and dive log work without signal.
Cloud sync
Sign in to back up logs and collections.
Salt & fresh
Many common freshwater and saltwater species, with more added regularly.
FAQ
Questions, answered briefly.
How do I identify a fish from a photo?
Open Seabook, take or upload a photo, and it suggests likely species. Compare traits against look-alikes to confirm, then save it to your log.
Can I search by traits if I don’t know the name?
Yes. Filter by color, pattern, fin shape, body type, habitat, region, or size to narrow it down.
Does Seabook work for anglers?
Yes. Identify species and keep a dedicated Catch Log with length, weight, lure, photo, and spot details.
Is there a dive log too?
Yes. Record dive locations, depth, notes, and species sightings alongside your catch log.
Saltwater and freshwater?
Yes. Seabook covers many common freshwater and saltwater species and adds more regularly.
Does Seabook work offline?
Yes. Enable offline mode to keep the dive log, catch log, and fish catalog with trait filters available without a connection.
Can I create my own collections?
Yes. Make collections for trips, targets, study sets, or favorites to stay organized.
Can my data be backed up?
Yes. Sign in to your Seabook profile to sync logs and collections securely to the cloud.
Turn “What fish is that?”
into “I know this one.”
One app for fish ID, Catch Log and Dive Log. Rated 4.7, trusted by 100,000+ users.