Whats app is an application which lets you message and chat video sharing and story posting voice and video calling pdf file sharing and many other features which are quite usefull the speed of whatsapp is very fast and its new layout is very attractive and usefull. Most of the users use whats app and the main thing its free there is no charges for using whatsapp its call quality is same as basic call quality. It has almost all features and it is very for bussiness purpose also because all messages are 32 bit encripted which means no one can hack and read you messages its totally safe.
