iOS 13 Setup
If you are running iOS 13, you will not need to make any setting changes. When bringing up the website at the location, you will be prompted to use Motion and Orientation. Please Allow Access to Motion and Orientation so the site can work properly.
iOS 12 Setup
If you are running iOS 12 12.2+, you will need to make a few setting changes to allow this app to work. First, go to your Settings->Safari. In your Safari settings, please enable ‘Motion & Orientation Access.