Switching from iPhone the only thing I need is a service like find my iphone so that I can locate my kid's. 3 of them have iphones and the other 2 of us have the HTC One. I am aware of Google Latitude but it seems to be a battery and data hog. Is there a service that anyone uses that will only ping the phones when the app is activated and locate at that time without constantly tracking, and of course free!