Footer + back to top on mobile web app

1. Do mobile pages have footers?
2. Do I need a back to top button?

Do mobile pages have footers?

In fact, most mobile users scroll straight down to the footer – making this part of the site almost as important as the header.

Do I need a back to top button?

Having a "back to top" button on a website is important. It allows users to easily scroll back to the top of the page. Most websites rely on JavaScript to toggle the visibility of the button based on the amount of scroll.