Rakuten Viber new 2017 logo.png
Developer(s)Rakuten Viber (part of Rakuten Inc.)
Initial releaseDecember 2, 2010; 7 years ago (2010-12-02)
Stable release(s) [±]
  • Android: (August 21, 2018; 3 months ago (2018-08-21)[1]) [±]
  • iOS:
    8.7.1 (April 21, 2018; 7 months ago (2018-04-21)[2]) [±]
  • Windows Mobile:
    6.6.1 (April 26, 2018; 7 months ago (2018-04-26)[3]) [±]
  • BlackBerry 10 OS: (April 23, 2014; 4 years ago (2014-04-23)[4]) [±]
Preview release(s) [±]
Written inC/C++/Python (desktop, using SIP and Qt frameworks), Objective-C (iOS), Java (Android)
Operating systemCross-platform
TypeInstant messaging client and VoIP

Viber is a cross-platform instant messaging and voice over IP (VoIP) application operated by Japanese multinational company Rakuten, provided as freeware for the Microsoft Windows, macOS, Linux, Android and iOS platforms. It requires a telephone number to operate. In addition to instant messaging it allows users to exchange media such as images and videorecords. As of December 2016, Viber had 800 million registered users.[5] The software was originally developed by Israel-based Viber Media, which was bought by Rakuten in 2014. Since 2017 its corporate name has been Rakuten Viber. It is currently based in Luxembourg.[6]

Company history

Viber Media was founded in Tel Aviv, Israel, in 1998 by Talmon Marco[7] and Igor Magazinnik, who are friends from the Israel Defense Forces where they were chief information officers.[8] Marco and Magazinnik are also co-founders of the P2P media and file-sharing client iMesh.[9] The company was run from Israel, with much of its development outsourced to Belarus in order to lower labor-costs.[8] It was registered in Cyprus. Sani Maroli and Ofer Smocha soon joined the company as well.[10][11][12][13][14][15]

In its first two years of availability, Viber did not generate revenues. It began doing so in 2013, via user payments for Viber Out voice calling and the Viber graphical messaging "sticker store". The company was originally funded by individual investors, described by Marco as "friends and family".[16] They invested $20 million in the company, which had 120 employees as of May 2013.[17]

On July 24, 2013, Viber's support system was defaced by the Syrian Electronic Army. According to Viber, no sensitive user information was accessed.[18]

On February 13, 2014, Rakuten announced they had acquired Viber Media for $900 million.[19] The sale of Viber earned the Shabtai family (Benny, his brother Gilad, and Gilad's son Ofer) some $500 million from their 55.2% stake in the company.[20][21] At that sale price, the founders each realized over 30 times return on their investments.[11]

Djamel Agaoua became Viber Media CEO in February 2017, replacing co-founder Marco who left in 2015.[22]

In July 2017 the corporate name of Viber Media was changed to Rakuten Viber and a new wordmark logo was introduced.[23] Its legal name remains Viber Media, S.à r.l. based in Luxembourg.

Former Viber logo until July 2017


Viber was initially launched for iPhone on December 2, 2010, in direct competition with Skype. It was launched on the Android platform on July 19, 2012, followed by BlackBerry and Windows Phone on May 8, 2012,[24] and Nokia's Series 40, Symbian and Samsung's Bada platform on July 24, 2012, by which time the application had 90 million users.[25][26][27]

In July 2013, a desktop version for Windows and macOS was released.[28] In August 2013, Viber for Linux was released as a public beta[29] and in August 2014 a final version.[30] In June 2016 a UWP-based desktop application for Windows 10 was released in the Windows Store.[31] Viber is one of the more popular messenger applications in Russia.[32][33]


In July 2012 group messaging and HD Voice engine were added to both Android and iOS applications.[34]

In December 2012 Viber added 'stickers' to the application. In October 2013, Viber started selling sticker packs.[35]

Voice support was officially added for all Windows Phone 8 devices on April 2, 2013.[36]

In December 2013, Viber officially launched Viber Out, a feature that provides users the option to call mobile and landline numbers via VoIP without the need for the application. Viber Out was originally released in November only to help Typhoon Haiyan victims in the Philippines connect with their loved ones.

Viber's desktop version uses TCP and UDP ports 5242, 4244, 5243, 9785, and the standard HTTP/HTTPS ports 80 and 443.[37]

In November 2016, Viber launched Public Accounts, to allow brands to engage in promotion and customer service on the platform, with initial partners including The Huffington Post, Yandex and The Weather Channel.[5] The app integrates with CRM software and offers chatbot APIs for customer service.[5]


On November 4, 2014, Viber scored 1 out of 7 points on the Electronic Frontier Foundation's "Secure Messaging Scorecard". Viber received a point for encryption during transit but lost points because communications were not encrypted with keys that the provider didn't have access to (i.e. the communications were not end-to-end encrypted), users could not verify contacts' identities, past messages were not secure if the encryption keys were stolen (i.e. the service did not provide forward secrecy), the code was not open to independent review (i.e. the code was not open-source), the security design was not properly documented, and there had not been a recent independent security audit.[38][39] On November 14, 2014, the EFF changed Viber's score to 2 out of 7 after it had received an external security audit from Ernst & Young's Advanced Security Centre.[38]

On April 19, 2016, Rakuten added end-to-end encryption to their service, but only for one-to-one and group conversations in which all participants are using the latest Viber version for Android, iOS, Windows (Win32) or Windows 10 (UWP).[40][41] The company said that the encryption protocol had only been audited internally, and promised to commission external audits "in the coming weeks".[42] In May 2016, Viber published an overview of their encryption protocol, saying that it is a custom implementation that "uses the same concepts" as the Signal Protocol.[43]

Market share

Viber has worldwide more than 900 million active users. In 2016, Viber surpassed WhatsApp in Russia, with 70 million users. By 2018, Viber had reached 100 million users in Russia.[44][45][46]

As of 2018, it is assumed that Viber will be blocked in Russia by 2019 like Telegram due to a violation of Russia's current anti-Privacy laws.[47]

See also


  1. ^ Viber Media S.à r.l. (13 June 2017). "Viber - Android Apps on Google Play". Google Play. Google. Retrieved 2017.
  2. ^ Viber Media, Inc (13 June 2017). "Viber On the App Store on iTunes". App Store. Apple. Retrieved 2017.
  3. ^ Viber Media (2018-04-26). "Viber". Windows Phone Marketplace. Retrieved .
  4. ^ Viber Media (23 April 2014). "Viber 10 - BlackBerry World". BlackBerry App World. Research In Motion (RIM). Retrieved 2016.
  5. ^ a b c Lunden, Ingrid. "Viber follows Messenger, launches Public Accounts for businesses and brands". TechCrunch. Retrieved 2018.
  6. ^ "Viber DMCA POLICY". Viber. Retrieved 2018.
  7. ^ Henry Mance. Six things to know about Viber. Financial Times. February 14, 2014.
  8. ^ a b The Skype Killers of Belarus By Brett Forrest August 23, 2012, Bloomberg Businessweek, Technology
  9. ^ "Talmon Marco's profile on LinkedIn". Retrieved 2018.
  10. ^ Jessica Geller. Messaging app Viber names Boston its US headquarters. The Boston Globe. October 16, 2015.
  11. ^ a b " ? ?-900 ?". ? - Retrieved 2015.
  12. ^ Viber sold for $900m by Hillel Koren, 14/02/2014, 14:55
  13. ^ "Viber - DMCA Policy". Viber. Retrieved 2015.
  14. ^ "Viber Media". Foursquare. Retrieved 2015.
  15. ^ "Top 10 iPhone apps from Israel". ISRAEL21c. Retrieved 2015.
  16. ^ "Viber founder: 'People should be concerned about privacy'". theguardian.
  17. ^ Parmy Olson (7 May 2013). "Free-Calling App Viber Jumps To Desktop, Hits 200 Million Users". Forbes. Retrieved 2015.
  18. ^ Crook, Jordan. "Viber Attacked By Syrian Electronic Army". TechCrunch. Retrieved 2014.
  19. ^ "Japanese Internet Giant Rakuten Acquires Viber For $900M". TechCrunch. February 13, 2014. Retrieved 2014.
  20. ^ " ? - ? " [The Star of Shabtai: This is How the Businessman Benny Shabtai Has Amassed His Huge Fortune]. Forbes (in Hebrew). 6 June 2014.
  21. ^ "Most of Viber's owners are based abroad including the Shabtais with a 55.2% stake". Globes. 16 February 2014.
  22. ^ "Viber appoints former AdTech chief to lead the company after more than a year without a CEO - VentureBeat". Retrieved 2018.
  23. ^ "Viber acquires Chatter Commerce, maker of mobile shopping keyboard ShopChat - VentureBeat". Retrieved 2018.
  24. ^ Viber for BlackBerry and Windows Phone 7 Now Available Archived May 12, 2012, at the Wayback Machine.
  25. ^ "Nokia Store: Download Viber and many other games, wallpaper, ringtones and mobile apps on your Nokia phone". Retrieved .
  26. ^ "Nokia Store: Download Viber and many other games, wallpaper, ringtones and mobile apps on your Nokia phone". Retrieved .
  27. ^ "Viber for Bada - Free messages on Samsung Bada". Archived from the original on 2013-05-30. Retrieved .
  28. ^ "Viber announces new desktop app, revamps Android and iOS versions". Retrieved 2018.
  29. ^ "Popular mobile IM/VoIP app 'Viber' available for Linux". WebUpd8. 26 August 2013. Retrieved 2013.
  30. ^ "Viber 4.2 Finally Released For Linux". phoronix.
  31. ^ "Viber for Windows 10 - Beta No Longer - Viber". 19 July 2016. Retrieved 2018.
  32. ^ "Viber of Russia". Retrieved .
  33. ^ "Viber ?". Retrieved .
  34. ^ Cooper, Daniel (September 11, 2012). "Viber comes to Symbian, S40 and Bada, adds HD voice calling and group messaging to Nokia Lumia handsets". Engadget. Retrieved 2013.
  35. ^ Russell, Jon (1 October 2013). "Viber Begins Selling Stickers". Retrieved 2018.
  36. ^ "WP8 Users Rejoice! Viber With Voice For Windows Phone 8 Has Been Released". Retrieved .
  37. ^ "Opening ports for Viber Desktop". Viber. Viber Media S.à r.l. Retrieved 2016.
  38. ^ a b "Secure Messaging Scorecard. Which apps and tools actually keep your messages safe?". Electronic Frontier Foundation. 4 November 2014. Retrieved 2016.
  39. ^ "Only 6 Messaging Apps Are Truly Secure". PC Magazine. 5 November 2014. Retrieved 2015.
  40. ^ Lunden, Ingrid (19 April 2016). "Viber adds end-to-end encryption and hidden chats as the messaging app privacy wave grows". TechCrunch. AOL Inc. Retrieved 2016.
  41. ^ Viber Media (n.d.). "Viber Security FAQ". Retrieved 2016.
  42. ^ Meyer, David (19 April 2016). "Another Big Messaging App Joins the End-to-End Encryption Party". Fortune. Time Inc. Retrieved 2016.
  43. ^ "Viber Encryption Overview". Viber. 3 May 2016. Archived from the original on 11 July 2016. Retrieved 2017.
  44. ^ "Viber surpassed WhatsApp in Russia". 18 January 2016. Retrieved 2018.
  45. ^ "26 Interesting Viber Stats and Facts (February 2018)". 17 February 2018. Retrieved 2018.
  46. ^ " ? ? ?» Viber ? ? ? ". 12 April 2018. Retrieved 2018.
  47. ^ "Russia Blocks 50 VPNs & Anonymizers in Telegram Crackdown, Viber Next - TorrentFreak". TorrentFreak. 2018-05-04. Retrieved .

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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