WhatsApp is an internationally available freeware, cross-platform, centralized instant messaging and voice-over-IP service owned by American company Meta Platforms. It allows users to send text and voice messages, make voice and video calls, and share images, documents, user locations, and other content.Initial release date: January 2009 Windows: 2.2226.6 / 1 August 2022; 5 months ago iOS: 22.13.74 / 27 June 2022; 6 months ago Programming language: Erlang Original author: WhatsApp, Meta, Jan Koum
4. Instagram. 1.47 billion
Instagram is a photo and video sharing social networking service owned by American company Meta Platforms. The app allows users to upload media that can be edited with filters and organized by hashtags and geographical tagging. Posts can be shared publicly or with preapproved followers. Wikipedia Size: 231.3 MB (iOS); 50.22 MB (Android); 50.3 MB (Fire OS) Initial release: October 6, 2010; 12 years ago Developer(s): Meta Platforms Available in: 32 languages
Messenger is a proprietary instant messaging app and platform developed by Meta Platforms. Originally developed as Facebook Chat in 2008, the company revamped its messaging service in 2010, released standalone iOS and Android apps in 2011, and released standalone Facebook Portal hardware for Messenger calling in 2018Initial release date: 9 August 2011 Size: 53.33 MB (Android); 124.1 MB (iOS); 169.4 MB (Windows 10 and Windows 11); 91.3 MB (macOS) Available in: 111 languages Original author: Meta, Insurify Programming languages: JavaScript, C++, Erlang, PHP Developer: Meta, Insurify