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

Diaspora is a nonprofit, user-owned, distributed social network that is based upon the free Diaspora software.

Facebook is the world's largest social network platform.

GeoCha is a local information discovery platform.

GroupMe is a mobile group messaging app.

Known is a publishing platform that allows its users to share their stories online.

Dasher Messenger provids a way to message friends.

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.

Hangouts is an instant messaging software developed by Google.

Jostle is a people engagement platform mainly focused on employee engagement.

Libertree is a free, libre, open-source software that lets people create their own social network.