Download of Gitter 1.177 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus.
The following version: 1.1 is the most frequently downloaded one by the program users. You can launch this free program on Mac OS X 10.8 or later. This free Mac application is an intellectual property of Troupe Technology Ltd. Commonly, this application's installer has the following filename: gitter-1.159.dmg. The application lies within Communication Tools, more precisely Texting & Video calls.
From the developer:
This chat application provides private conversations, perfect for your company or team on GitHub. It can auto-complete GitHub issues, usernames and lots more. The application integrates with the services that matter to developers. The app also provides an unread badge on the dock icon as well as a menu bar icon, which allows you to quickly open a specific chat room.
You may want to check out more Mac applications, such as Ao, which might be similar to Gitter.