You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
If you haven’t received an email invite and accepted the invite then you are not in the Early Access Program. You need to accept their terms and conditions in order to join. I speak about this based upon what I’ve heard from others. I am not a member of the Early Access Program.