Gadu-Gadu
Internet protocol
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Gadu-Gadu is a Polish instant messaging client using a proprietary protocol. Gadu-Gadu was the most popular IM service in Poland, with over 15 million registered accounts and approximately 6.5 million users online daily. Gadu-Gadu's casual gaming... Wikipedia
Developer: Łukasz Foltyn
Initial release date: August 15, 2000
Operating system: Windows, macOS, Linux, iOS, Android, Symbian, Windows Phone, BlackBerry OS
Stable release: 12.4.109.12193