A free app for Mac, by messenger.
Social & Messaging - Latest programs
Janetter: A Twitter Client for Mac
A free program for Mac, by PSI.
Pixfeed: A Free Mac Program for Chat and Instant Messaging
Tiny desktop Twitter app
Xjournal: LiveJournal Blogging Your Way
InstaMaster: Upload photos & videos for Instagram
Index all your chats in a snap
Chat from your Mac to any device
Complete IM client with cute design and great features
Apple's Messages: A Seamless Chat Client for Mac
Chatting with friends & family near and far