WhatsApp Apk v2.18.329
WhatsApp Apk is very common and one of the easiest way to send messages and make calls. You can contact anyone from your contact list very easily. Your phone must be connected to the internet to use this app. There is only one restriction or requirement to send messages or make calls using this application. And that requirement is that the other person should have WhatsApp installed on his phone too.
This app is so good that it is available for all the mobile operating systems (Android, Windows Phone, iOS, Symbian etc.). So you can text or call your friend using WhatsApp regardless of what mobile phone they have. Sending text messages and making calls are very basic things that you can do using this application.