Update: I really liked the App until it failed in the one area you really hoped it wouldn't. My daughter was in a 50 mph crash last week and there was no notification from the app. This app is basically just a good way to know where they are. for that I gave it the 2 stars. some peace of mind but now I know, if she crashes I still have to wait on a phone call. Thank God is is ok, but 50mph into a tree could have been way worst if she could call.