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Find the right pattern fast by species, lifecycle stage, and water type with clear tying notes and usage tips.
Know What's Happening on the Water
Learn what bugs are hatching, what flies to use, and catch more fishQuick Start
Hatch Forecast
See what is hatching now with GPS-based forecasts so you can plan smarter trips and fish the right window.
Waters
Find the right water to fish with detailed information about the water, including the fish species that can be found there, current water conditions, restrictions, and more.
Your Flybox
Build a digital flybox of trusted patterns so you are ready before a trip or at the fly shop.
Catchtivity
Log catches with locations and conditions to learn what works and repeat your best days.
Video
Learn faster with short videos that show how to use features and improve your results.
Your Complete Fly Fishing Application for the modern fly fisher
IdentaFly turns complex fly fishing decisions into clear next steps, so you spend less time guessing and more time on the water. Learn what to fish, where to fish, and what to tie with tools designed to guide every trip from planning to post-trip insights.
Whether you're researching a new river, trying to match the hatch on short notice, or improving your fly selection over time, IdentaFly combines reliable data with practical learning so you can make confident, informed choices.
Start with the essentials below, then check back each month for updated hatch chart conditions and the pattern of the month.
If you like reading about fly fishing, check out our blog.
Fly Fishing Pattern of the Month
Make sure to check back next month to see what's new!
About IdentaFly
Jeff
Entomologist, Green River (Utah) roots
Phil
Tech guy, fly fisher, mountain lover
Bud
Fly-tying guru, methodical angler
The 3 co-founders, Jeff, Phil, and Bud, are all fly fishing enthusiasts based in the Denver, CO region. Our mission is to be the world's most trusted resource for fly fishing technology — empowering anglers through technology to connect more deeply with the water, fish more confidently, and have fun too. Afterall, we are just catching fish.
We're committed to revolutionizing the way fly anglers understand hatches, identify patterns, and read river conditions. Whether you're a seasoned guide or picking up a rod for the first time, IdentaFly gives you the tools and knowledge to identify flies, insects, and patterns effortlessly — so every decision on the water is an informed one.
Have questions or feedback? We'd love to hear from you.
