I am a Custom Integrator, but we use a local DTV dealer to do our satellite installs. Currently we have him do a drive by to scope a location to see if there will be any problems with getting a signal. Is there an android app I could use to check for a line of sight and save him a trip? I have seen the DishPointer Pro app, but cant get myself to pay $20 for an app (yeah Im cheap). Are there other apps? My searches in the market havent had the best results. Or is Dish Pointer really my best option?