Web site: Category: Network Subcategory: Instant Messengers Platform: Android, iOS, Linux, OS X, Windows License: Proprietary, Freeware Interface: GUI Programing language: First release: August 15, 2000 Gadu-Gadu – a light and friendly application for daily private and corporate communication. It uses a proprietary protocol that features include status messages, file sharing, VoIP, and formatting … Read more Gadu-Gadu