Is there a tool that can help to discover what take a lot memory in android app

I have app that generally work very fast.
But as content grow app responsiveness become clumsy.
Content that I get is text, images and it is loaded in lists.

I am using react native and for lists I am using flat lists (no paging, so I load about 1000-2000 items in lists).

As I am using RN and hit android and ios, ios version work fast but android sometimes even crash due to memory issue.

Is there some tool that can be used to check and see what exactly eat all memory on phone?