This app is really amazing overall, especially for beginning astronomers. However, one significant improvement to the app would be that instead of moving the iPhone to activate the gyroscope, there would be a button to tap to activate it, allowing amateur astronomers to use it with their telescopes. If this were added, it would definitely be a 5 star app.
Deepsky.07 about SkySafari 4: Journey into Night! Explore Sun, Moon, Mars, Stars, Satellites, and NASA space missions!