You are searching a collaboration service without SDK or Wrapping? Easy to configurate and with push installation? Then take a look at Slack: It supports AppConfig in the newest versions.
AppConfig could be the better way to implant services / apps in your environment. No need for seperate SDK Apps or App Wrapping. Take a look at all benefets in our AppConfig article.
Slack is a way to get group collaboration with lots of features:
- Direct messages
- Share files
- Archive with search functions