Adium is an Open source multi-protocol instant messaging client for Mac OS X, supports MSN, Jabber, Yahoo! and other networks.

BlackBerry Messenger, also known as BBM is an instant messenger and videotelephony application included on BlackBerry devices that allows messaging and voice …

Dasher Messenger provids a way to message friends.

Empathy is an instant messaging (IM) and voice over IP (VoIP) client which supports text, voice, video, file transfers, and inter-application communication ov…

FaceTime is a proprietary videotelephony product developed by Apple Inc. FaceTime Audio is an audio-only version.

Hangouts is an instant messaging software developed by Google.

Bit Chat is a secure, peer-to-peer, open source instant messenger with end-to-end encryption.

Conversations is an open source XMPP/Jabber client for the Android platform.

Disa is your new messaging hub. Conversations from different services can seamlessly be joined together, or disbanded within seconds.

Facebook Messenger is the official Facebook app that lets you have text conversations with all of your friends on the popular social network.

Google Duo is a video chat mobile app available on the Android and iOS operating systems.

ICQ is an open source instant messaging software.