Meta Platforms-owned mobile instant messenger and social media service

WhatsApp Messenger is a freeware and cross-platform messaging and voice over IP (VoIP) service owned by Meta.[1] The application allows the sending of text messages and voice calls, as well as video calls, images and other media, documents, and user location.[2][3]

Messaging with WhatsApp

The application runs from a mobile device though it is also accessible from desktop computers. The service requires consumer users to provide a standard cellular mobile number.[4] Originally users could only communicate with other users individually or in groups of individual users. In September 2017 WhatsApp announced a forthcoming business platform which will enable companies to provide customer service to users.[5]


  1. Metz, Cade (5 April 2016). "Forget Apple vs. the FBI: WhatsApp just switched on encryption for a billion people". Wired (magazine). Condé Nast. Retrieved 13 May 2016.
  2. Voice calling, March 12, 2015
  3. "WhatsApp Voice Calling". Forbes. April 4, 2015.
  4. "WhatsApp FAQ - Using one WhatsApp account on multiple phones, or with multiple phone numbers". WhatsApp.com.
  5. "Building for People, and Now Businesses". WhatsApp.com.