About Gillscan
Gillscan started with a simple question every angler asks at the water's edge: "What is this — and can I keep it?"
Identifying a fish used to mean flipping through a field guide. Knowing whether it's legal to keep meant digging through dense state regulations, decoding size limits, slot limits, bag limits, and seasons that change every year. Two different chores, both easy to get wrong, both with real consequences.
Gillscan does both in seconds. Snap a photo and our AI names the species. Share your location and we check the size, bag, and season rules that apply where you're standing — so you can make a confident keep-or-release call before the fish leaves the water.
What we believe
Identification first
Fast, accurate species ID is the heart of the app — everything else builds on knowing what you caught.
Fish responsibly
Size and season limits protect fisheries. Making the rules easy helps everyone fish sustainably.
Privacy by default
No accounts, no tracking, no ads. Your catch history stays on your device.
Honest about limits
AI and regulation data aren't perfect — we say so, and always point you to official sources.
A note on accuracy
Gillscan is a guide, not an authority. Fish identification can be uncertain for look-alike species, and fishing regulations change frequently. Always confirm current rules with your local fish-and-wildlife authority before keeping any catch. See our Terms of Use and Privacy Policy.
Questions, feedback, or a species/region you'd like covered? We'd love to hear from you: hello@gillscan.com