of Mountain View, California, which was acquired by Facebook in February 2014 for approximately US$19.3 billion. The client application was created by WhatsApp Inc. In January 2018, WhatsApp released a standalone business app targeted at small business owners, called WhatsApp Business, to allow companies to communicate with customers who use the standard WhatsApp client. The service requires a cellular mobile telephone number to sign up. WhatsApp's client application runs on mobile devices but is also accessible from desktop computers, as long as the user's mobile device remains connected to the Internet while they use the desktop app. It allows users to send text messages and voice messages, make voice and video calls, and share images, documents, user locations, and other content. WhatsApp Messenger, or simply WhatsApp, is an American freeware, cross-platform centralized instant messaging (IM) and voice-over-IP (VoIP) service owned by Meta Platforms. Proprietary software with EULA ( 'European Region', others) Meta Platforms, Will Cathcart (Head of WhatsApp) Ģ.21.170 / 30 August 2021 2 months ago ( 30 August 2021)Ģ.21.16.20 / 18 August 2021 3 months ago ( 18 August 2021)Ģ.2132.6 / 24 August 2021 2 months ago ( 24 August 2021)Ģ.2132.6 / 23 August 2021 2 months ago ( 23 August 2021)Ģ.21.18.7 / 31 August 2021 2 months ago ( 31 August 2021)Īndroid, iOS, KaiOS (There are also Mac OS, Windows and web app clients that work only when connected to the mobile app client.)

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