Caprine 2.31 for Mac is available as a free download on our application library. This free software for Mac OS X is an intellectual property of Sindre Sorhus. The latest installer takes up 57.7 MB on disk. This Mac download was scanned by our built-in antivirus and was rated as safe. The program is included in Communication Tools.
From the developer:
Caprine is an unofficial Facebook messenger application for Mac users.
You may want to check out more software for Mac, such as Chax, SMS Mac Scripting or Qik-In-Touch, which might be related to Caprine.