The app is available in the Apple and Google stores or viewable through the web at confmobile.psats.org
Almost all of the modules within the app are located behind the login so you must log in to see the information. Due to the increasing benefits of the mobile app, access to the app is available only to conference registrants.
This table will give you some insight on the mobile app.
There are more modules such as My Profile, Inbox, Notes, and Session Ratings. Some additional modules include links to web pages with important information about the conference.
See you in Hershey April 17-20!