Marine Species Identification

Identify and track 375 marine species, corals, and invertebrates on every dive.

Search species...
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Fish
Coral
Invert.
Clownfish
Manta Ray
Sea Turtle
Lionfish
Nudibranch
Moray Eel
Seahorse
Whale Shark
Octopus
375 species available

A Library in Your Pocket

Wonder what that fish was? Dive Ledger has 170 marine life species - fish, sharks, rays, turtles, invertebrates - plus 205 corals, sponges, and anemones. Every entry has a photo so you can ID what you saw before the memory fades.

Log What You See

That manta circling overhead. The nudibranch hiding on the wall. Select species directly from the database and attach them to your dive log. Each sighting is saved with location, date, and conditions - so when someone asks "where did you see that?", you have the answer.

Build Your Underwater Life List

Birders have life lists. Now divers do too. Every species you log joins your personal marine life list. Watch it grow with every trip - from your first clownfish to your hundredth nudibranch.

Corals Count Too

205 corals, sponges, and anemones in the database. Staghorn, brain coral, table coral, sea fans - identify and log the reef structures you see. Whether you are documenting a reef survey or just curious, every sighting is recorded.

Frequently Asked Questions

How many marine species are in the database?
Dive Ledger includes 170 marine life species (fish, sharks, rays, turtles, invertebrates) and 205 corals, sponges, and anemones - each with identification photos.
Can I add species that aren't in the database?
The species database is curated and updated with new releases. You can always log sighting notes in the dive's notes field for species not yet in the database.
Can I see all species I've spotted across all dives?
Yes. Your marine life sightings accumulate across your full dive history, building a personal species list you can review anytime.

Your next dive deserves a better logbook.

Dive Ledger is launching soon on iOS. Free to use. No account required.

Coming soon
Coming soon