Viber
Viber, or Rakuten Viber, is a cross-platform voice over IP (VoIP) and instant messaging (IM) software application owned by Japanese multinational company Rakuten, provided as freeware for the Google Android, iOS, Microsoft Windows, Apple macOS and Linux platforms. Users are registered and identified through a cellular telephone number, although the service is accessible on desktop platforms without needing mobile connectivity. In addition to instant messaging it allows users to exchange media such as images and video records, and also provides a paid international landline and mobile calling service called Viber Out. As of 2018, there are over a billion registered users on the network.
| Original author(s) | Talmon Marco Igor Magazinnik | ||||||||||
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| Developer(s) | Rakuten Viber (part of Rakuten Inc.) | ||||||||||
| Initial release | 2010 | ||||||||||
| Stable release(s) [±] | |||||||||||
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| Preview release(s) [±] | |||||||||||
| Written in | C/C++/Python (desktop, using SIP and Qt frameworks), Objective-C (iOS), Java (Android) | ||||||||||
| Operating system | Cross-platform | ||||||||||
| Type | Instant messaging client, VoIP | ||||||||||
| License | Proprietary software | ||||||||||
| Website | viber | ||||||||||
The software was developed in 2010 by Cyprus-based Viber Media, which was bought by Rakuten in 2014. Since 2017, its corporate name has been Rakuten Viber. It is based in Cyprus with offices in London, Manila, Moscow, Paris, San Francisco, Singapore, and Tokyo.