I balked at the idea of paying 20 bucks for this app at first. Recently, my mother moved to a very rural area. She ordered a 200 channel package from a sat tv company. Installer comes out, slaps up the dish, and she can only get 6 channels-and marginally at best- he tells her to be glad for that, it was the only spot for signal. I went over with this app, and lo and behold, I found THREE spots to get both satellites she needed. I moved the dish and reset the elevation according to the app, and I got over three times the signal he got, and she now gets all her channels clearly, all the time!! Thanks for this app- it worked just as it says, and it really is cool to see where those satellites are in the sky! Its worth the money, thats for sure!