This app was mentioned in 1 comment, with an average of 2.00 upvotes
There are also dedicated "PAX Aus" apps released by Guidebook on each platform:
Android: https://play.google.com/store/apps/details?id=com.guidebook.apps.PAXAus2013.android
iOS: https://itunes.apple.com/au/app/pax-aus-2015-mobile-app/id657630506?mt=8