Whatsapp is cross platform messaging app which allows user to send text messages to another user using cellular mobile number over the internet. whatsapp messager is now aquired by facebook, which is also a social networking platform. New Version of whatsapp is really best because,
1) now you can add more people in group earlier it was only 32.
2) New Whatsapp Supports text Styling such as Bold, italics effects
3) Now You Can Share Graphic interchange format(GIF) Images, you can share PDF Files.
4) Whatsapp is also available on Desktop
5) Voice Messaging
6) Whatsapp Themes and wallpapers
7) it is Ad free
so I Can Say That Whatsapp is really must have App for Staying Connected with your love ones.