The logbook
Codex means book. This is your fishing one — every location, every catch, every condition, written down and kept. It's a private map of your own locations and catches, seen by nobody but you. The core of it is free, and it works fully with no internet and no account — entries save to your device first.
Every entry saves to your device the instant you tap save, before any network is involved. The map, tides and forecasts stay usable offline. Offline map tiles are free to download for any region worldwide. Entries sync to the cloud when you're connected — but the full logbook works without it.
Every entry carries a 14-day weather-and-sea forecast for its exact location anywhere on earth — temperature, wind, swell, rain, pressure and more — built on the same global weather data the major forecast apps use, at no cost to you. It stays readable offline from your last sync, and days past the horizon fall back to sun and moon. The forecast is free, on every entry.
Every entry gets its tide state and moon phase auto-filled from that exact date, time and place — including imported entries. Import a photo from 25 years ago and the app works out the tide and moon for the day it was taken. You can also import locations from GPX, KML and CSV files, including fishfinder and chartplotter waypoint exports. No manual entry — you just see what conditions you were fishing in.
The Best Fishing Times screen shows roughly 30 days of fishing-window predictions for your area — star ratings, moon phase, sunrise and sunset, and major and minor feeding periods. Ratings are personalised to your own limits and catch history, not a one-size-fits-all score. The forecast is available offline from your last sync.
The private logbook, offline maps, tides, forecasts, Best Fishing Times and catch statistics are free. App Pro (sold through the App Store and Google Play) adds: unlimited free-entry claims that stay on your map, following anglers, advanced catch statistics, condition-matched entry ranking, and 10 GB of cloud photo backup. App Pro is optional — the logbook works fully without it.
The Fishing Codex app is also where entries from other anglers' logbooks land: unlock or claim an entry on fishingcodex.com and the exact location appears on your private in-app map. The app never shows prices or buy buttons — all unlocking and claiming happens on the website.
Free to download on iOS and Android. The private logbook, offline maps and tides need no account.
The Fishing Codex app
Everything the app does, both platforms, and links to the App Store and Google Play.
Anglers' logbooks
Unlock or claim real entries from real anglers — the exact locations land on your private in-app map.
Fishing conditions guide
Set your own wind, swell and tide limits — the app rates every day by your standards.
