Campfire vs Gitter: What are the differences?
What is Campfire? Team collaboration with real time chat. Campfire is like instant messaging, but designed exclusively for groups. Share text, files, and code in real time. Save transcripts so you don’t forget.
What is Gitter? Messaging for people who make software. Integrated with your team, projects and your code. Free chat rooms for your public repositories A bit like IRC only smarter. Chats for private repositories as well as organisations..
Campfire and Gitter can be categorized as "Group Chat & Notifications" tools.