具有开源许可证的Slack版Cyfe的替代方案

• Slack
  所有平台 Windows Mac Linux Chrome OS Android iPhone Windows Phone Apple Watch iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) Windows Mobile Wordpress Slack Chrome Node.JS Redmine Bitbucket GitLab Jira Trello Microsoft Office Suite Pipedrive Heroku MongoDB HipChat Rollbar CircleCI JetBrains TeamCity Olark Jenkins Atlassian Stash Stash QuickBooks
• 开源许可证
  任何牌照 免费许可证 开源许可证 商业牌照