> Constantly asks for access to location, contact book, photos etc.

a) Isn't that reasonable for a chat app? I mean, contact book, photos, location are all things that are likely part of the fabric of your chats with others?

b) It might ask for permission, but does it stop working if you deny permission? (I genuinely don't know since I'm not a user). If it doesn't prevent you from chatting, I don't think this is a strong argument.