Actor vs Campfire: What are the differences?
Actor: Open source team messaging application with apps for Android, iOS, and Web. Actor is a platform for instant messaging. Actor provides features like large group chats; unlimited history storage; send/receive documents, photo, and video; authentication with one time password for phone number/email or OAuth2; easy integrations with external services; 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.
Actor and Campfire can be primarily classified as "Group Chat & Notifications" tools.
Actor is an open source tool with 3.3K GitHub stars and 764 GitHub forks. Here's a link to Actor's open source repository on GitHub.