Fish identifier for iPhone
Know what fish it is.
Point your camera at a fish — caught, in a tank, or at the market. FishLens names the species and shows how confident the match is, the moment you snap.
① The species
One photo tells you what it is.
Every photo returns a named species with a clear confidence reading, not a vague guess. See the closest match, how sure FishLens is, and the key features that point to it.
Certainty
Sample species
Freshwater · ray-finned fish
Confidence
$420
$344—$504
Identifications are for reference and learning only — not expert verification. For anything safety-critical, such as whether a fish is safe to eat or handle, consult a qualified specialist.
Matched species
First pressing · gatefold LP
Pick another ›
② The match
The right species, confirmed.
Look-alikes are everywhere underwater. FishLens reads the body shape, fins, and markings to match the most likely species, with a confidence indicator — confirm it, or pick another candidate if it looks off.
- Frame the whole fish — body, fins, and tail all help the match.
- A confidence ring shows how sure the match is.
- Not quite right? Choose another candidate in a tap.
③ The life list
Your life list, growing.
Save every fish you identify into a personal life list on your device. Sort, filter, and watch your field guide fill in species by species as you log them.
Species logged
$0
0
Species
0
Families
Live Activities
Live on your Lock Screen.
FishLens brings three Live Activities to the Dynamic Island — so identification progress, new finds, and milestones live where you'll actually see them.
Identification progress
Watch a recognition run from the island, hands-free.
New species found
A live note when a fish joins your life list for the first time.
Milestone unlocked
A celebration when you earn a new naturalist badge.
Naturalist badges
Milestones, cast in metal.
Bronze to obsidian, every milestone you reach is struck into a naturalist badge — by how many species you've identified, how many families you've covered, and the waters you've explored.
17 tier badges to earn · Hover a badge
Learn the field
Read the water before you cast.
Key features, look-alikes, seasons, habitats, handling — naturalist know-how, free to read inside the app and right here.
FreeHow to identify a fish from a single photo
Body shape, fins, and markings — the features that name a species fast.
FreeReading a fish: the key features that name a species
Fins, scales, mouth, lateral line — the field marks that separate look-alikes.
FreeFreshwater or saltwater? How to tell where a fish lives
Habitat narrows the field fast — learn the tells before you even ID.
FreeCommonly confused fish — and how to tell them apart
Bass, trout, perch families — the pairs people mix up, and the giveaways.
FreeFish by season: when species show up and why
Spawning runs, migrations, water temperature — timing that shapes what you'll see.
FreeWhere fish live: habitats from reef to riverbed
Reefs, lakes, estuaries, deep water — how habitat hints at the species.
FreeHandle and release fish the right way
Wet hands, support the body, quick photos — care that keeps fish healthy.
FreeKeep a fish life list: log every species you find
Photos, dates, places — turn casual sightings into a growing field guide.
FishLens Pro
Identify any fish — and learn what it is.
Go Pro for unlimited identifications, in-depth species profiles, and a life list without limits.
Weekly
Flexible$9.99/week
Annual
Best value$59.99/year
about $1.15 / week
Auto-renewing subscription billed to your Apple ID. Weekly is $4.99; annual is $29.99 (about $0.58 / week). Renews at the same price each period unless cancelled at least 24 hours before it ends. Manage or cancel anytime in App Store settings. No free trial.
FAQ
Good questions, straight answers.
How accurate are the identifications?
Each result comes with a confidence reading, so you can see how sure the match is. FishLens is a reference and learning aid — for safety-critical decisions, confirm with a qualified specialist.
Do I need to create an account?
No. Your life list, identification history, and preferences are primarily stored on your device. Optional Sign in with Apple and server-backed family features use an account. We use limited PostHog product analytics and AppsFlyer install attribution without IDFA or cross-app advertising tracking.
What happens to the photos I take?
When online recognition is enabled, a photo you take is sent securely to the recognition service to identify the species. It is not retained after processing, shared, or used for advertising.
Is anything free?
Yes — the naturalist guides are free to read, in the app and on this site. Unlimited identification and full species profiles are part of FishLens Pro.
How do I cancel?
Cancel anytime in your App Store account settings. There's no free trial and no lock-in — the subscription simply stops renewing.
Which devices are supported?
FishLens is an iPhone app. Live Activities appear on iPhones with the Dynamic Island and on the Lock Screen.
