When comparing Unison vs Campfire, the Slant community recommends Campfire for most people. In the question“What is the best team chat software?” Campfire is ranked 42nd while Unison is ranked 60th.
Ranked in these QuestionsQuestion Ranking
Pro Notifies via mentions
It's possible to @user or @all to alert a specific user or everyone in a room, respectively.
Pro Full end-to-end encryption
Pro Native apps for iOS and Android
In addition to being available on the web, Unison has native iOS and Android applications.
Pro Shows who has read each post
Pro Built-in support for video conferencing
Video calls are a single click away.
Pro Supports optional 128-bit SSL encryption
Pro Guest access
You can invite people to join conversations even if they don't have a Campfire account. Campfire will generate a link to share and the guest will only need to enter their name to join the conversation.
Pro Easy conferencing
When you need to make a conference call, all you need to click is "Start A New Call" and Campfire instantly embeds a phone number and password code in the message thread.
Pro Mobile apps
Campfire supports only iOS, but third party apps can be used for Android. There are also other third party apps that build upon Campfire and extend its functionality.
Pro Embeds images
Images that are uploaded in the GIF, PNG, or JPEG formats are represented as thumbnails in the chat room.
Con Lacks wehbooks & services integration
Con Future of Campfire is uncertain
37signals have "changed direction" away from Campfire, focusing on Basecamp. They've ruled out shutting it down, but at this stage it's uncertain whether it'll be spun off as a separate company, sold off, or run in maintenance mode without any new features.