WhatsApp Messenger is a cross-platform instant messaging application that allows iPhone, BlackBerry, Android, Windows Phone and Nokia smartphone users to exchange text, image, video and audio messages for free. Desktop client integrate with the OS and show notifications using Ubuntu notification osd . App also allow you stay logged in after closing the session . Lots of other feature s are inside . Supported Ubuntu Versions : Recommended Ver : 12.04 and above . Price"WhatsApp-Ubuntu -Desktop Whatsapp client by Keshav Bhatt"