Hatchpedia3.002 - App Store

Know what’s hatching. Match the hatch with confidence.

A mayfly lands on your rod. What is it? What's a good fly to tie on?
Hatchpedia puts a pocket-sized aquatic entomologist in your hand. Identify mayflies, caddisflies, stoneflies, and hundreds of other aquatic insects using everyday observations. Explore detailed photos, life stages, and hatch timing, whether you’re beside your favorite stream or planning your next trip.

DESCRIBE THE BUG. DISCOVER THE INSECT.
Upright wings. Yellow body. Two tails. About 12 mm body.
Describe what you see in your own words. Hatchpedia’s purpose-built search engine matches your observations against more than 520 insects that trout love to eat. No scientific names or special search syntax required.
Not sure where to start? Search by Example gives you ready-made descriptions to try and adapt.

BUILT FOR DAYS OFF THE GRID
Your favorite fishing spots don’t always come with cell service. Hatchpedia’s insect identification and reference content work offline, so you can stay on the water instead of searching for a signal.

Subscribers can use Hatchpedia offline for up to 14 days after their last successful subscription verification. Open the app online before heading into the backcountry.

SEE THE DETAILS THAT MAKE THE DIFFERENCE
Explore more than 1,000 professionally licensed photographs selected to help you recognize aquatic insects through their life stages.
Look beyond a name with detailed information including:
- Common and scientific names
- Approximate adult size
- Known U.S. hatch regions and seasonal timing
- An explanation of why an insect matched your search
- Life-stage guidance explaining why each phase matters to trout

FIND WHAT FITS YOUR WATER
Use your location and date to narrow your search to insects associated with your area and season. Planning a trip? Choose a U.S. region and date to explore likely hatches before you pack your fly box.

START LEARNING FOR FREE
Explore Hatchpedia’s free educational pages about aquatic insects and their life cycles. Subscribe to unlock identification and the full reference experience.

From the first insect you notice to a deeper understanding of your home water, Hatchpedia helps you fish with knowledge and confidence.

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Terms and conditions: https://www.hatchpedia.com/terms

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Version History Hatchpedia 3 brings a completely redesigned look and experience, making your time in the app simpler and more enjoyable, on the water and off.
- Redesigned screens and navigation throughout the app
- A fresh presentation of insect photos and detailed information
- A new guided tour to help you get acquainted with Hatchpedia

The aquatic insect knowledge you rely on, with a whole new experience. 3.002 21h ago New Fly Recommendations for several species. 2.012 07/18/2024 Fly Pattern Recommendations feature. 2.011 06/24/2024 Added in-app Store Review (after using the app a few times, not annoyingly immediate) :) 2.008 05/23/2023 Updated Baetis brunneicolor hatch dates - pushed early hatch back to beginning of May. 2.007 05/15/2023 Bug fix: Photo Credit updates. 2.006 04/29/2023 Bug fix for new Skwala photos. Huge thanks to our contributors! 2.005 04/27/2023 Added photos of Skwala genus and Skwala americana species. Thank you to our contributors! 2.004 04/26/2023 Added one-time message with simple instructions for users planning to go out of cell/internet range. 2.003 03/18/2023 Bug fix: hatch date comparison logic with certain dates.
Updates to Account page user interface. 2.002 03/12/2023 Improved user experience in Advanced Search - shows selection of date or region briefly before executing the search to give user visual confirmation that the selection was made.

Improved Calendar Control in Advanced Search - easier to use and better look-and-feel.

Various small user interface improvements mostly to improve accessibility when using large text size. 2.001 03/01/2023 1) Accessibility improvements for all but the largest text size.
2) Bug Fix: navigating to account page and back to search followed by executing a new search would sometimes result in an empty results list.
3) Improved experience navigating to account page and back to search by preserving the state of the search page including results. 2.0 03/01/2023 1.0 02/26/2023