WhatsApp Messenger, commonly known simply as WhatsApp, is an American social media, instant messaging, and Voice over IP service accessible via desktop and mobile app. Owned by Meta Platforms, the service allows users to send text messages, voice messages, and video messages, make voice and video calls, and share images, documents, user locations, and other content. The service requires a cellular mobile telephone number to register. WhatsApp was launched in May 2009. In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client. As of May 2025, the service had... Wikipedia
- Original author(s): Brian Acton, Jan Koum
- Developer(s): Meta Platforms, Will Cathcart (Head of WhatsApp)
- Initial release: May 03, 2009
- Written in: Erlang
- Operating system: Android, iOS, iPadOS, macOS, Windows, Wear OS, Meta Quest, watchOS
- Size: 183.7 MB (iOS), 48.02 MB (Android)
- Available in: 40 (iOS) and 60 (Android) languages
- Type: Social media, instant messaging, VoIP
- License: Proprietary software with EULA, "European Region", "others"
- Data source: DuckDuckGo