Best Team Communication Software for Redmine

Chat for distributed teams. Zulip combines real-time chat and email threading to provide instant messaging. Zulip allows you to keep up with important conversations and ignore the rest. Zulip is powered by Electron, React Native and has modern apps for every platform. Zulip is 100% open-source software, developed by hundreds of developers from around the globe. Zulip has 120,000 words worth of documentation, a high-quality code base, and a friendly community that makes it easy to modify or extend the software. Zulip has a much larger and more active developer community than modern open-source group chat solutions like Mattermost and Rocket.Chat. Zulip supports more than 90 native integrations. Hubot, Zapier, IFTTT and IFTTT offer hundreds more integrations. You can also create your own integrations using Zulip's powerful API.

CA Flowdock unites all your conversations, work items, and tools. You can prioritize work, solve problems, search for and organize across time zones, locations, and teams. Your entire team can chat in real-time. Flows are the heart and soul of Flowdock. They provide open spaces for teams to communicate and collaborate. Invite project stakeholders to join your Flow, to participate in discussions, receive updates from your tools, as well as receive customized notifications. Threads are used to organize conversations within a team flow. These Threads allow team members to reply, keeping topics organized. Each conversation is color-coded to make it easy to identify a topic and jump back into a conversation. You can talk privately with a member or your team through our 1:1 Flows if you need to discuss confidential matters. To activate instant video chat or screen sharing using one of our favorite integrations, Appear.in, use the /appear command. This link is available to everyone on your team.