App vs Browser battery/data usage

The question doesn't have a strict answer. It depends on your usage. Don't know what else you want to hear.
 
If I use an app all day, would it use more data/battery than using the actual website for it all day? We can use facebook if you want. App vs browser.
 
I would guess the app will use more of both, but probably not by much, and really I am only guessing.