How to turn off chat notifications

You can customize chat notifications for each chat room.

Go to the chat room list and swipe left (iOS), or long press (Android), the chatroom you'd like to change.
Select [Chat Notifications] to change settings for [Push Notifications] and [Badge Notifications].

If you want to turn off all chat room notifications,
go to your BAND Home > More [≡] > [Settings] > [Push Notifications] > OFF