Zulip - Chat for distributed teams
Real-time chat combined with mail threading
The whole world uses Whatsapp and or Slack. Why did EPS choose Zulip?
Zulip is open source. This means that any backdoors are very difficult to be discovered.
Zulip can be run on the systems you choose (self hosted). So you know exactly where your data is and of course all connections are encrypted with Hile from Certbot.
Zulip can be connected to your Active Directory, the Atlassian Crowd server, etc, and you can use your usual user management.
Thanks to the open source model there are no license costs so you only have to pay for operating the server.
In addition to the web application, desktop and mobile apps (Android and iOS) are available to users.
Functions such as mail-threading, marking messages, quoting and replying, inviting guests, etc. make the use efficient and clear for all employees in contrast to Slack.
Integration with Confluence, Jira Software, Bitbucket, Bamboo, Nagios, GitHub, and many other tools are a breeze.