Tell it what the river's doing and it ranks your box. Any picker left blank is ignored. Flies that produced on logged trips get a boost.
My rivers
Waters you fish. Rivers show up as a filter in On the Water, in the trip form, and in trip history.
Your data
Backup & restore
One file with everything on this device — inventory, notes, photos, rivers, trips. Save one after every good outing.
Import inventory
Replace your inventory from a CSV. Three formats work: one row per pattern (Fly Pattern, Type, Qty, Size(s)), one row per size (Fly Pattern, Type, Size, Qty), or this app\u2019s own exports. Library patterns auto-populate all field-guide info.
Trip history
Export your trips as a spreadsheet (one row per fly, trip details repeated), or import trips from a CSV in that format or from a Fly Box backup file. Imports merge with what's here — exact duplicates are skipped.
Export
The inventory export includes every field-guide column, filled in where the library knows the pattern — the complete format for building a fly box from scratch. Fill in the blanks (or start from the empty template) and import it right back; new patterns with their columns filled become part of this device's pattern library.
Install on your phone
iPhone: open this page in Safari → Share → Add to Home Screen. Android: Chrome menu → Add to Home screen. After the first visit it works fully offline, like an app. Share the web address with fishing buddies — their inventory and trips stay on their own phones.
Data mode
Each switch is a clean wipe of everything on this device — inventory, trips, notes, photos. Download a backup first if anything here matters.
Pattern library: patterns of fishing knowledge, bundled in this file. Share the file itself — each person's inventory, notes and trips stay on their own device.