团队协作／聊天工具 － slack

https://itunes.apple.com/us/app/slack/id803453959?mt=12 (mac下的客户端）
https://itunes.apple.com/us/app/slack-business-communication-for-teams/id618783545?mt=8

https://slack.com/
https://get.slack.help/hc/en-us