If Airhead is not fully loading up on mobile Safari (iPhone/iPad) like below:

There are several troubleshooting steps you can take. 

1. Ensure you are not browsing in Private Browsing mode. Airhead requires access to write some data into the local storage of the browser and Private Browsing restricts this action. Follow this Apple support article to disable Private Browsing.

2. Ensure Javascript is enabled on your device. Follow the instructions in this Apple support article to enable Javascript.