Show an example please. Many folks won't sign up to crit a project.
Things not shown: side bar of that page displays your weight, weight this day last week, last month, and a prediction of where you will be one month from now assuming linear extrapolation of weight shifting. Settings pages allow you to import data from LoseIT, link with a FitBit account, etc.
So you capture attention, make sure that's obvious on the landing page: Put a nice big link somewhere "See How it Works!"
I changed the primary hero button to a "See How It Works" that links to the about page.