Fishing Times is a solunar app.
It shows the best time to fish during the day. The pro version will give you prognostics for the next days not only the current one.
It is based on the theory from the famous book “Moon Up – Moon Down: Story of the Solunar Theory” by John Alden Knight. It uses tides, earth position, sun and moon phases and undisclosed other parameters to determine the biorhythm of the fauna to decide if they will bite on your lure, fly or anything you’ll throw at them.