WhatsApp Messenger, or simply WhatsApp, is an American freeware, cross-platform centralized instant messaging and voice-over-IP service owned by Meta Platforms. It allows users to send text messages and voice messages, make voice and video calls, and share images, documents, user locations, and other content.

What is the real meaning of WhatsApp?

WhatsApp was founded in 2009 by WhatsApp, Inc. The company name puns on the popular colloquial greeting What's up? and app, short for application.

Why is it called WhatsApp?

Koum named the app WhatsApp to sound like "what's up". ... In June 2009, Apple launched push notifications, allowing users to be pinged when they were not using an app. Koum changed WhatsApp so that everyone in the user's network would be notified when a user's status is changed.