Following along here because I too am hoping for some evidence on this one.
Thread
I am thinking about where to place the user profile icon. 1) Bottom tab with other navigation options 2) At the top (so right or left?) I have always had the Profile icon in the bottom right (1). Is there any good readings or talks on this (UI) decision?
I think tab bar makes sense until your app grows in complexity and you want to make something more prominent