This app tell you the GPS satellite location. GPS satellites whoes singal is received are shown in the sky by directing your phone to the satellites.
GPS satellites is very small and far. So it isn't able to see your eye. But by connecting your phone to your telescope with rotally encoder via Bluetooth, this app shows the sky your telescope is directing. So You can see GPS satellite by your telescope. You can get schematic and farm to connect to your telescope from http://p.tl/h3xp.
This app is made based on Sky Map opensource project(https://code.google.com/p/stardroid/). But compare to original Sky Map app, following points are imploved:
1)The number of stars is increased and can be choosed from 1,600, 15,000, 40,000, 80,000, 120,000(Original Sky Map has 1,000 stars). But choosing rich starchart might cause longer loading time and out of memory error.
2)The icon of Messier heavenly body is changed by the type.
3)Screen can rotate in the pole axis center or zenith-nadir axis center.
4)The location of celestical object not included in this app can be searched from SKY-MAP.ORG(http://sky-map.org/).