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WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. [14] 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.
The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...
Timeline of WhatsApp. The following is a timeline of WhatsApp, a proprietary cross-platform, encrypted, instant messaging client for smartphones. [1] Jan Koum incorporates WhatsApp in USA. [2] WhatsApp 2.0 is released on the App Store for the iPhone. [3]
WhatsApp made it easier to focus on a single participant during a group call — just press and hold on their video. WhatsApp today announced a slew of new features that are set to roll out ...
WhatsApp's user base grows to about 200 million active users and its staff to 50. Jul 2013: Sequoia invests another $50 million in Series B round, valuing WhatsApp at $1.5 billion. Jul 16, 2013: WhatsApp changes its profit model with an annual subscription fee of $1 after a free first year. Aug 2013
A valid phone number or email address is not required for registration & login. However, the mobile app serves as the primary device, due to the end-to-end encryption architecture. Yes No No No Trillian: No Yes No No Yes Viber: Phone number No No No No WeChat: Phone number or QQ number No No No No No WhatsApp: Phone number No Yes No No No Wire
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