WhatsApp is an internationally available freeware, cross-platform, centralized instant messaging and voice-over-IP service owned by US tech conglomerate Meta. It allows users to send text and voice messages, make... Wikipedia

  • Original author(s):  Brian Acton, Jan Koum
  • Developer(s):  Meta Platforms, Will Cathcart (Head of WhatsApp)
  • Written in:  Erlang
  • Operating system:  Android, iOS, KaiOS, macOS, Windows (The latter two require one-time verification from the mobile app client.)
  • Size:  178 MB (iOS), 33.85 MB (Android)
  • Available in:  40 (iOS) and 60 (Android) languages
  • Type:  Instant messaging, VoIP
  • License:  Proprietary software with EULA, "European Region", "others"
  • Data source:  DuckDuckGo