Get Seabook
iOS
Android
Everything You Need
From identification to logging — explore what Seabook can do for you
Dive Log
Track Your Dive History
Log your dives with all the details that matter — depth, duration, conditions, and the species you encountered. Build a searchable archive of every underwater adventure.
Sightings
Log the Details
Capture sightings with photos, notes, size, weight, and location. Every encounter becomes part of your personal marine life history.
Species Database
Explore Marine Life
Browse 1,700+ species with detailed information, stunning photos, and structured attributes. Learn about habitats, behaviors, and identification tips.
Collections
Create Collections
Organize species and sightings into custom collections — by trip, region, family, or any theme that fits how you explore.
Smart Filters
Effortless Search
Find species using powerful filters: color, shape, habitat, region, and more. No perfect photo? No problem.
Dive Sites
Discover Dive Sites
Explore popular dive locations around the world. See what species others have spotted and plan your next adventure.
Offline Mode
Dive Offline
No signal on the liveaboard? No problem. With offline mode activated, access species data and log sightings anywhere.
How Seabook Works
Identify
Photo ID, trait filters, or search — you're not stuck if you don't have the perfect photo.
Learn
Species pages with facts, attributes, and useful context — not just a name, an explanation.
Log
Turn encounters into your personal dataset — sightings, photos, details, collections.
Offline
Works where signal doesn't — liveaboards, remote dive sites, anywhere.
Built for Everyone Who Explores the Ocean
Whether you dive, snorkel, fish, or study marine life — Seabook adapts to how you explore.
For Scuba Divers
Log your dives and every species encounter — so your dive history stays vivid and searchable. Attach sightings to dives, organize by trips, build your lifelist.
After a trip, you remember the turtle… but not the fish. Seabook keeps each encounter attached to the dive.
For Freedivers & Snorkelers
Spot it, name it, save it. A lightweight marine life diary for every swim — no heavy dive computer workflow needed.
You saw a strange patterned fish near the reef. No perfect photo? Use filters and browse the database.
For Anglers
A saltwater catch log and species ID in one place — track size, weight, release status, and build your personal species history.
You caught a species you can't confidently name. Identify it, log weight/size, mark released, attach your photo.
For Students & Learners
A structured marine species library you can turn into study collections — and validate in the field with your own sightings.
Studying reef fish families? Build a study collection, then log sightings during field trips.
Trusted by Ocean Explorers
4.7
App Store
4.5
Google Play
Dirkili2602
Diver
I Love using this App while diving and finding out cool facts about marinelife. I can totally recommend it!
Makayla
Marine Biology
I absolutely love this app especially if you are really into marine biology this is the app for you it gives you so much incredibly useful information and is super easy to use!
YellowRainbowFriend_
Enthusiast
It has really interesting stuff some I didn't even know.
Indunil
Marine Biology
Seabook is a fantastic app for anyone interested in marine life! The user-friendly interface and stunning visuals make learning about the ocean fun and engaging.
Narhhallas
Diver
Just the app I was looking for. Will definitely buy premium for next diving holiday.
James
Diver
Love it! So easy to identify the fish you have seen using the search. This app is the second buddy for me now!
Matheus
Student
This app is going to be a big step in my journey. I want to be a marine biologist in the future, so wow, this app is spectacular for me!
SAMUEL
Student
It is a very good app. The photos are of very good quality. I want to be a marine biologist, and I really like apps with this kind of background.
L'
Diver
L'application est vraiment top! Super bien faite, belles couleurs, agréable à regarder, jolies photos, très pratique pour trouver des informations.
Luludonagi
Student
I loved this app! I am a student trying to get a scholarship in marine biology and this app is helping me so much!
Molly
Student
Very, very, very good indeed! I wanted to be a biologist and I will get a lot of help with this app. Very practical, very fun, one of the best apps I have ever used!
Alice Maria
Enthusiast
I recommend it! I really like marine life, and this app has helped me a lot with my hobby.
Jhanpier
Student
Very good to learn more about fish since I want to be a marine biologist!
Thainne
Student
I LOVE IT! It talks about various marine animals, very easy to use. I highly recommend it for people who want to be marine biologists!
Viola
Enthusiast
Very useful for finding fish species and getting information. Very beautiful and well-functioning.
Nathalia
Student
I love this! I want to study marine biology and this is perfect to start little by little and learn more.
Andrea
Marine Biology
This app is my favorite. It teaches you so much about fish, corals, their colors, and where they live. You can learn a lot!
맛잇는만듀
Enthusiast
Great! I like biology so this is perfect for me.
Dirkili2602
Diver
I Love using this App while diving and finding out cool facts about marinelife. I can totally recommend it!
Makayla
Marine Biology
I absolutely love this app especially if you are really into marine biology this is the app for you it gives you so much incredibly useful information and is super easy to use!
YellowRainbowFriend_
Enthusiast
It has really interesting stuff some I didn't even know.
Indunil
Marine Biology
Seabook is a fantastic app for anyone interested in marine life! The user-friendly interface and stunning visuals make learning about the ocean fun and engaging.
Narhhallas
Diver
Just the app I was looking for. Will definitely buy premium for next diving holiday.
James
Diver
Love it! So easy to identify the fish you have seen using the search. This app is the second buddy for me now!
Matheus
Student
This app is going to be a big step in my journey. I want to be a marine biologist in the future, so wow, this app is spectacular for me!
SAMUEL
Student
It is a very good app. The photos are of very good quality. I want to be a marine biologist, and I really like apps with this kind of background.
L'
Diver
L'application est vraiment top! Super bien faite, belles couleurs, agréable à regarder, jolies photos, très pratique pour trouver des informations.
Luludonagi
Student
I loved this app! I am a student trying to get a scholarship in marine biology and this app is helping me so much!
Molly
Student
Very, very, very good indeed! I wanted to be a biologist and I will get a lot of help with this app. Very practical, very fun, one of the best apps I have ever used!
Alice Maria
Enthusiast
I recommend it! I really like marine life, and this app has helped me a lot with my hobby.
Jhanpier
Student
Very good to learn more about fish since I want to be a marine biologist!
Thainne
Student
I LOVE IT! It talks about various marine animals, very easy to use. I highly recommend it for people who want to be marine biologists!
Viola
Enthusiast
Very useful for finding fish species and getting information. Very beautiful and well-functioning.
Nathalia
Student
I love this! I want to study marine biology and this is perfect to start little by little and learn more.
Andrea
Marine Biology
This app is my favorite. It teaches you so much about fish, corals, their colors, and where they live. You can learn a lot!
맛잇는만듀
Enthusiast
Great! I like biology so this is perfect for me.
Frequently Asked Questions
Does Seabook work offline?
Yes. With offline mode activated, you can browse species and log sightings on liveaboards, remote dive sites, or anywhere without signal. Your logs sync when you're back online.
How can I identify species?
Multiple paths: use photo identification when you have a clear shot, apply trait filters (color, shape, habitat) when you don't, or search and browse the structured database directly.
How many species are included?
Over 1,700 marine species with detailed information, photos, and structured attributes. The database is continuously updated.
What can I log in a sighting?
Add your photo, notes, location, date, and details like size or weight. Attach sightings to dive log entries, organize them into collections, and search your history anytime.
Can I organize favorites into collections?
Yes. Create collections for trips, regions, target species, study sets, or any theme that matches how you think. All searchable and shareable.
What's free vs Premium?
Free: browse ~50% of species, dive logs, collections, cloud sync & backup. Premium unlocks the full species database, photo identification, additional creature photos, and advanced filters (venomous, poisonous, and more). Start free and upgrade when you need more.
Ready to explore?
Download Seabook free and start building your marine life history.
Get Seabook
iOS
Android