Whatsapp I most important in social media our talk our friend pivetly and group vise Whatsapp ne feature in useful send to pdf file and calling in frainds you dont need to pay any more for calling and it is also not consuming so much data . It is available in all android and other phones and it can run smoothly on all conections even 2G. This app provides everything like, you may share videos and audio clips , images text messages . I think after face book , whatsapp is a best messanger
