Описание тега whatsapp
WhatsApp Messenger is a proprietary, cross-platform instant messaging application for smartphones. In addition to basic messaging and video calling, WhatsApp Messenger users can send each other images, video and audio media messages.
WhatsApp Messenger is a cross-platform mobile messenger supporting end-to-end encryption. It replaces SMS and works through the existing internet data plan of a device. Aside from supporting text messages, it also supports sharing (GIF) images, videos and audio messages.
WhatsApp is available for iPhone, Android and Windows Phone devices. It can additionally be accessed via the internet browser of desktops.
For more information, visit WhatsApp.com or read the Wikipedia entry on WhatsApp.
It is possible to set up a WhatsApp client programmatically. Example libraries for doing so are Chat-API (PHP) and Yowsup (Python).