1. Import what you already have
Import photos straight from your camera roll: Fishing Codex reads each photo's date, time and place, and works out the moon and the tide for the day it was actually taken. Import GPX, KML and CSV files too, including waypoint exports from a fishfinder or chartplotter, up to 10,000 entries in one file.
A quick-tag step afterwards lets you name the species across a whole batch at once.