WhatsApp is a free messaging and video calling application that is owned by Meta Platforms, Inc after it acquired from WhatsApp, Inc. in 2014.
It is a centralized instant messaging (IM) and voice-over-IP (VoIP) service where users can send text and voice messages, make voice and video calls, and share images, documents, user locations and other content.
The app is available globally and runs on mobile devices but can be accessed on computers. To create an account, one needs to provide a mobile phone number.
As of January 2023, it has over 2 billion monthly active users in more than 180 countries.