Excellent

Ive been using this app for quite sometime and am now beta testing a new version. To me, this is one of my most frequently used photography apps. The use of the app is the best at finding the best sunrise, sunsets, star photography available.
The program is dead on and easy to use.
I could not reccomend a better photo app

Robert Bockenkamp III about The Photographer's Ephemeris, v3.3