build size is 560mb!

I am new at unity. I try to make an 2d app for ios but its size getting very big vhen I build.
I tred everything but size never changed. My assests take up 10mb. But dlls are more than 500mb. How can I remove unused dlls and assets or whatever app doesn’t need ?

These kinds of questions have been asked before so I’m just gonna link them here…

Unity Docs:

Unity Answers:

I dont know if you have done research prior to posting this but you know… google is your friend;)