i use the fishing and hunting app. lol, oddly enough, i keep records of when i do and dont catch fish and it pretty much lines up with the FAL and high activity times. a yankee buddy of mine from michigan has been keeping records for the last 3 years and he said it was 90% accurate. coincidentally, he also has the most master angler certificates for 10", 11" bluegill and pumpkin seeds in the whole state of michigan. if you use it for fishing not only use the major and minor periods but also the moon rise and set times.
i also look at days when folks post pics on here and record that as well. FYI, the days that you, woodyard and scn caught all those trout on the white the FAL was 96%.
i do not think it is accurate for hunting, although there may be some coorelation to the new and full moons due to increased light.