How do I leave a chatroom?

Tap the Edit button on the top-left corner of the Chats tab. Then tap the "-" button on the left of the chatroom you want to leave and the "Leave" button will appear. 


You can also swipe a chatroom to left from the Chats tab and tap the "Leave" button.  


Please note that if you leave a chatroom, the chatroom and its chat history will be permanently deleted.