I have been working on a Group Chat app, that is based on existing Chat App Template (accessible through New App in Editor)
Here it is,
The reason I am building this is to be integrated to existing apps, even though this can be as a whole app by itself.
Benefits of integrating Group Chat in your App :
More engagements, users are likely to use the app and doing conversations related to the content in the app using in-app Chat function
Recorded conversations, making it easy for users to communicate around past issues and can be used as learning tool for other users
Fair distribution of information, timely information dispersed to users will make them have equal opportunity to act accordingly
User generated contents are encouraged and can be leveraged for further enhancements of the app
More people linked to each other, more ideas will come up
The main features of this Group Chat App Template are Multiple Users Conversation, Group Admin and Blocking Users.
And using single Read Status, which does not accumulate to lots of records.
And can send picture and view in full screen.