WhatsApp

WhatsApp
WhatsApp.svg
Original author(s)Brian Acton, Jan Koum
Developer(s)Facebook, Inc., Will Cathcart (Head of WhatsApp)[1][2]
Initial releaseJanuary 2009; 12 years ago (2009-01)
Stable release(s) [±]
iOS2.21.170[3] Edit this on Wikidata / 30 August 2021; 52 days ago (30 August 2021)
Android2.21.16.20[4] Edit this on Wikidata / 18 August 2021; 2 months ago (18 August 2021)
Windows2.2132.6[5] Edit this on Wikidata / 24 August 2021; 58 days ago (24 August 2021)
macOS2.2132.6[6] Edit this on Wikidata / 23 August 2021; 59 days ago (23 August 2021)
Preview release(s) [±]
Android (Beta)2.21.18.7[7] Edit this on Wikidata / 31 August 2021; 51 days ago (31 August 2021)
Written inErlang[8]
Operating systemAndroid, iOS, KaiOS (There are also Mac OS, Windows and web app clients that work only when connected to the mobile app client.)
Size178 MB (iOS)[9]
33.85 MB (Android)[10]
Available in40 (iOS) and 60 (Android)[11] languages
TypeInstant messaging, VoIP
LicenseProprietary software with EULA ("European Region", others)
WebsiteWhatsApp.com

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.[12] It allows users to send text messages and voice messages,[13] make voice and video calls, and share images, documents, user locations, and other content.[14][15] WhatsApp's client application runs on mobile devices but is also accessible from desktop computers, as long as the user's mobile device remains connected to the Internet while they use the desktop app.[16] The service requires a cellular mobile telephone number to sign up.[17] In January 2018, WhatsApp released a standalone business app targeted at small business owners, called WhatsApp Business, to allow companies to communicate with customers who use the standard WhatsApp client.[18][19]

The client application was created by WhatsApp Inc. of Mountain View, California, which was acquired by Facebook in February 2014 for approximately US$19.3 billion.[20][21] It became the world's most popular messaging application by 2015,[22][23] and has over 2 billion users worldwide as of February 2020.[24] It has become the primary means of internet communication in multiple locations, including Latin America, the Indian subcontinent, and large parts of Europe and Africa.[22]

  1. ^ Horwitz, Jeff (February 12, 2020). "As WhatsApp Tops 2 Billion Users, Its Boss Vows to Defend Encryption". Wall Street Journal. Archived from the original on March 17, 2020. Retrieved April 2, 2020.
  2. ^ Cite error: The named reference WashingtonPostWhatsAppPushback was invoked but never defined (see the help page).
  3. ^ https://apps.apple.com/app/id310633997.
  4. ^ https://play.google.com/store/apps/details?id=com.whatsapp.
  5. ^ https://whatsapp-desktop.en.uptodown.com/windows.
  6. ^ https://apps.apple.com/app/id1147396723.
  7. ^ https://www.apkmirror.com/apk/whatsapp-inc/whatsapp/.
  8. ^ Ainsley O'Connell (February 21, 2014). "Inside Erlang, The Rare Programming Language Behind WhatsApp's Success". fastcompany.com. Archived from the original on February 2, 2018. Retrieved December 20, 2017.
  9. ^ "WhatsApp Messenger". App Store. Archived from the original on April 30, 2021. Retrieved June 9, 2021.
  10. ^ "WhatsApp Messenger APKs". APKMirror. Archived from the original on February 24, 2021. Retrieved May 12, 2021.
  11. ^ "WhatsApp Help Center - How to change WhatsApp's language". WhatsApp.com. Retrieved March 26, 2021.
  12. ^ Metz, Cade (April 5, 2016). "Forget Apple vs. the FBI: WhatsApp Just Switched on Encryption for a Billion People". Wired. ISSN 1059-1028. Archived from the original on April 9, 2017. Retrieved May 13, 2016.
  13. ^ "Features". WhatsApp.com. Archived from the original on May 28, 2019. Retrieved May 31, 2019.
  14. ^ Voice calling, March 12, 2015, archived from the original on March 17, 2015, retrieved March 16, 2015
  15. ^ "WhatsApp Voice Calling". April 4, 2015. Archived from the original on October 19, 2017. Retrieved September 18, 2017.
  16. ^ "WhatsApp Desktop Client for Windows & Mac Is Only Second Best". MakeUseOf. Archived from the original on February 27, 2019. Retrieved June 18, 2019.
  17. ^ "WhatsApp FAQ – Using one WhatsApp account on multiple phones, or with multiple phone numbers". WhatsApp.com. Archived from the original on May 10, 2018. Retrieved May 9, 2018.
  18. ^ "There's a new version of WhatsApp". The Independent. January 19, 2018. Archived from the original on August 5, 2019. Retrieved June 18, 2019.
  19. ^ Armstrong, Paul. "How To Know If Your Business Should Use The New WhatsApp Business App". Forbes. Archived from the original on April 8, 2019. Retrieved June 18, 2019.
  20. ^ Albergotti, Reed; MacMillan, Douglas; Rusli, Evelyn M. (February 20, 2014). "Facebook to Pay $19 Billion for WhatsApp". Wall Street Journal. pp. A1, A6. ISSN 0099-9660. Archived from the original on October 2, 2019. Retrieved September 20, 2019.
  21. ^ "Facebook to Acquire WhatsApp" (Press release). February 19, 2014. Archived from the original on February 20, 2014. Retrieved February 19, 2014.
  22. ^ a b Metz, Cade (April 5, 2016). "Forget Apple vs. the FBI: WhatsApp Just Switched on Encryption for a Billion People". Wired. Archived from the original on April 5, 2016. Retrieved April 5, 2016.
  23. ^ Leo Sun (September 11, 2015). "Facebook Inc.'s WhatsApp Hits 900 Million Users: What Now?". The Motley Fool. Archived from the original on October 14, 2015. Retrieved October 21, 2015.
  24. ^ "WhatsApp Blog". WhatsApp.com. Archived from the original on February 14, 2020. Retrieved February 14, 2020.

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