WhatsApp Messenger, or simply WhatsApp, is an American freeware, cross-platform centralized instant messaging (IM) and voice-over-IP (VoIP) service owned by Facebook, Inc. Proprietary software with EULA ( 'European Region', others)
Messaging and VoIP service by Facebook WhatsAppįacebook, Inc., Will Cathcart (Head of WhatsApp) Īndroid, iOS, KaiOS (There are also Mac OS, Windows and web app clients that work only when connected to the mobile app client.)
