The prime example of this is Snapchat. I don't know why it has so many buttons and why there are so many secret menus (behind the swipe left and right) or why t

The prime example of this is Snapchat. I don't know why it has so many buttons and why there are so many secret menus (behind the swipe left and right) or why the buttons are placed there. Compared that to Instagram where the buttons are obvious.