I mean, I'm looking through the permissions now and don't see anything that's not arguably needed to make it work: - Calendar (it can set up reminders in group

I mean, I'm looking through the permissions now and don't see anything that's not arguably needed to make it work: - Calendar (it can set up reminders in group chats and calendar) - Camera/Microphone (to take pictures and videos to put in group chat) - Contacts (to get a list of contacts! Also see SMS capability below) - Location (you can send your location in a chat) - SMS (it can act as an SMS client as well as FB chat) - Storage (store received pics/videos, and access existing pics/videos) - Telephone (to detect when you get an incoming call so it can handle any active activities (think if you're already on a video call)). And as others have noted, you can disable most of these if you don't want them on recent Android versions.