Hatchmark

Hatchmark is a fly fishing field journal built for anglers who care about the details. Your fly box starts empty. As you log sessions and add the patterns you actually tie, it fills with the flies that matter to you — not a generic reference set. Every entry builds your fishing story. WHAT'S INSIDE Your Personal Fly Box - Start empty, fill as you fish - Add patterns by logging a session, or browse the full 67-pattern catalog - Multi-page expansion once your collection grows - Personal notes on every pattern The Pattern Catalog - 67 hand-illustrated fly patterns - Organized by Dry Fly, Nymph, Streamer, Wet Fly, Emerger, Terrestrial, Worm, Egg, and Specialty - Recommended sizes, when to use, and field notes for every pattern The Hatch Guide - 12 months of Rocky Mountain hatch data - Insect identification with scientific names and sizes - Matching fly pattern recommendations for every hatch - Tap any pattern to view the full detail - Works completely offline The Knot Library - Six essential fishing knots with step-by-step illustrations - Clinch, Improved Clinch, Palomar, Blood, Surgeon's, and Loop - Available offline wherever the river takes you The Logbook - Capture every session in seconds - Date, water, species, fly used, environmental conditions - Year-filtered statistics and a season heatmap - Your fishing year, visualized OFFLINE BY DESIGN Hatchmark stores everything locally on your device. The full pattern catalog, hatch guide, and knot library work without any internet connection. Your sessions and notes belong to you — no servers, no tracking, no telemetry. HATCHMARK PREMIUM Hatchmark requires a subscription to access full functionality after a 7-day free trial. - Monthly: $4.99/month - Annual: $39.99/year (save 33%) Subscription auto-renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID subscription settings. - Terms of Use: https://vulcansystems.io/hatchmark/terms - Privacy Policy: https://vulcansystems.io/hatchmark/privacy - Support: https://vulcansystems.io/hatchmark/support Built by anglers, for anglers. From Vulcan Systems.