Chatterino - Chatterino is a chat client for twitch chat.
multiChat for Twitch - multiChat for Twitch is an incredible free-to-use chat application that is designed to aid users to have the best possible ad-free Twitch.tv experience right from their mobile devices.
Restream Chat - Restream Chat is a versatile software that permits you to streamline multiple chats in one place.
Tc chat client for Twitch - Twitch chat client that runs silently in the background.
Xtra - a Twitch player and browser
Messenger for Mac - Facebook Messenger wrapped up as a desktop app