Best of the best!
This is a fabulous app, one of my absolute favorites. Its so much fun that sometimes its more interesting than the real sky outside, especially for someone like me who lives in a large city with frequent overcast days. I guess in a sense it shows me what Im missing! Even my mom has developed an interest in astronomy with this app—the ability to hold it up against the real sky and identify all that you can see really encourages you to learn more. Ive encountered no bugs or crashes thus far. Fully satisfied (and I was already a happy user of version 3).
Mxsmanic about
SkySafari 4 Pro: Professional Telescope Astronomy! Explore Sun, Moon, Mars, Stars, Planets, and Satellites! Go where NASA space missions have not!, v4.0