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2. WhatsApp - Wikipedia

   en.wikipedia.org/wiki/WhatsApp

   WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. It allows users to send text , voice messages and video messages, [15] make voice and video calls, and share images, documents, user locations, and other content.

3. Instant messaging - Wikipedia

   en.wikipedia.org/wiki/Instant_messaging

   Instant messaging is a set of communication technologies used for text-based communication between two ( private messaging) or more (chat room) participants over the Internet or other types of networks (see also LAN messenger ). [6] IM chats happen in real-time.

4. Messenger (software) - Wikipedia

   en.wikipedia.org/wiki/Messenger_(software)

   Messenger, also known as Facebook Messenger, is an American 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 ...

5. WhatsApp could soon show you who is online now to ... - AOL

   www.aol.com/news/whatsapp-could-soon-show-online...

   Andrew Griffin. May 1, 2024 at 1:19 PM. (AFP via Getty Images) WhatsApp could soon allow people to see which of their friends are online, to try and encourage them to chat. The feature will show a ...

6. 2021 Facebook outage - Wikipedia

   en.wikipedia.org/wiki/2021_Facebook_outage

   On October 4, 2021, at 15:39 UTC, the social network Facebook and its subsidiaries, Messenger, Instagram, WhatsApp, Mapillary, and Oculus, became globally unavailable for a period of six to seven hours. [1] [2] [3] The outage also prevented anyone trying to use "Log in with Facebook" from accessing third-party sites. [4]

7. WhatsApp back online after widespread reports of outages - AOL

   www.aol.com/news/whatsapp-back-online-widespread...

   WhatsApp is one of the most widely used messaging apps across the world

8. Comparison of cross-platform instant messaging clients

   en.wikipedia.org/wiki/Comparison_of_cross...

   A mobile-focused, phone number-based model operates on the concept of primary and secondary devices. Examples of such messaging services include: WhatsApp, Viber, Line, WeChat, Signal, etc. The primary device is a mobile phone and is required to login and send/receive messages.

9. Signal (messaging app) - Wikipedia

   en.wikipedia.org/wiki/Signal_(messaging_app)

   Signal is an encrypted messaging service for instant messaging, voice calls, and video calls. [14] [15] The instant messaging function includes sending text, voice notes, images, videos, and other files. [16] Communication may be one-to-one between users or may involve group messaging. The application uses a centralized computing architecture ...