Xabber is a free, open source cross-platform instant messaging and group chat application that supports multiple protocols such as XMPP (Jabber), Google Talk, Facebook, Vkontakte, LiveJournal and ICQ. The app allows users to send and receive instant messages, create group chats, and share files easily. It also supports audio and video calls, as well as voice messages. Xabber also provides a range of features such as encryption, offline messages, message archiving, and integration with third-party services such as Twitter and Dropbox. The app is available for both iOS and Android devices.
It can do more or less the same thing, and it is also very similar in concept and design (free software too).