The logbook
Fishing Codex is a free fishing logbook app for iOS and Android, and once you have signed in it keeps working with no signal. Log a catch and it fills in the moon, the weather and, on sea water, the tide for that moment and place, so every entry keeps the conditions it was caught in.
Fishing Codex records the catch and then fills in what was true at that moment: moon phase, wind, swell, rain and pressure, plus tide state where the water is tidal, at your exact location, anywhere on earth.
Hit Fish On! when the fish is on and a fight timer runs. Land it, add the species and the photo, and the entry writes itself. Or drop a pin from the plus button.
Entries save to your phone first and are backed up once you're in range again. The map, the tides and the moon all work with no connection. Sign in once and a dead zone is never a locked door.
Import from your camera roll and each photo’s date, time and place become an entry, with the tide and moon worked out for the day it was actually taken, even if that was decades ago. Import GPX, KML and CSV files too, including fishfinder and chartplotter waypoint exports, up to 10,000 entries in one file.
Then tag a whole batch with its species in one pass.
Your logbook is yours. Nothing you log is public unless you publish it, entry by entry. Free listings publish from the app or the website; paid listings publish on the website. Plenty of anglers never publish anything at all and just use the app.
You own a crew from day one, and the official Fishing Codex crew is there to join whenever you want it. There's a worldwide feed of catches, events and competitions to enter, and other anglers' published logbooks to read. The app runs in 40 languages.
The core app is free forever, with no card, no trial and no paywall on your own logbook. App Pro is optional: the full 14-day forecast with each entry’s Compare days, the full Best fishing times range with the species and starred views, advanced statistics, and 10 GB of cloud backup for everything you store (photos, clips and tracks) instead of 200 MB.
Yes. The core app is free forever: the private logbook, the map, tides, moon, a one-day weather and sea forecast on every entry and basic Best fishing times, with no card, no trial and no paywall on your own logbook. App Pro is an optional subscription that adds the full 14-day forecast, the full Best fishing times range, advanced statistics and 10 GB of cloud backup instead of 200 MB.
Yes, once you have signed in. Entries save on your phone first and are backed up once you are in range again, and the logbook, the private map, tides and moon all keep working offline. Claiming an entry needs a connection.
Yes. Import photos from your phone: a photo with a location becomes an entry, and one without stays in your Photos until you place it on the map. GPX, KML and CSV files import too, including fishfinder and chartplotter waypoint exports, up to 10,000 entries in one file. Each imported catch gets its moon phase, and its tide on sea water, worked out for when it was caught.
Yes. A catch you log on the water records the conditions at that moment and place: the moon phase, the wind, rain and pressure, and on sea water the swell and the tide. An imported catch gets them worked out for when it was caught, and where the tide data is weak the app says its confidence is lower rather than inventing certainty.
Free to download on iOS and Android. Sign in once and the logbook works offline forever.
The Fishing Codex app
Everything the app does, both platforms, and links to the App Store and Google Play.
Other anglers' logbooks
Published entries and Local Intel: what you get, and how it arrives in your app.
Fishing conditions guide
Set your own wind, swell and rain limits, and the app reads every day against your standards.
