This is a very good app.it is very usefull .i like it very much. its layout is very good.they not share my location to any one .its blocking mode is very good. I make a unlimited group in whatsaap. I love this app.his privaty system is very good .so I always install this app.it was low memory usable app.he gave me choice of chosing a quality of photos , videos and data. so I love this app