Satellite Safari is a new iOS app from the creators of Sky Safari. Rather than look at the universe, Satellite Safari has more local ambitions.
The app contains a complete database of what is orbiting the earth. It allows you to find what is overhead, then view the spacecraft from earth, from above the earth, or right next to the orbiting satellite with the sun's lighting at the correct orientation. You can easily find what is above you at any time, and try to locate it with binoculars or with the naked eye if the satellite is bright enough. The satellite positions are updated every second, and the position calculations are updated every day.