Fifteen seconds, one hand, no signal.

You know the shape of it. You land a good fish in a canyon with no bars, you mean to remember the water and the fly, and three trips later you are scrolling a camera roll trying to work out whether that cutthroat came from the upper meadow or the one below it.

So the app is built around one number: the time between landing a fish and having it recorded. Species, water, fly. It works with no signal, because the places worth fishing do not have any, and it is meant to be usable one-handed with cold wet hands, because that is the condition you will be in.

The second catch should be faster than the first.

What accumulates is more useful than a checklist. Rivers and anglers have relationships: the creek you keep going back to, the fish you caught there two years ago and again last June. Kept over seasons, the record becomes a journal of that, and it is yours: private, unranked, and never a scoreboard.

And the sequence does not end when you land it. Finding the water, reading it, picking the fly, getting the drift, hooking it, landing it, handling it well, letting it go well: every one of those is a skill and every one can be done badly. You release a fish carefully because that is how you might, maybe, get to do this again someday, when it is bigger and has had offspring. No promises. That is the point of it.