1. In the app, look for the tab that displays a visual daily schedule (typically the tab is called Schedule but could have been relabeled by the organizer)
  2. Press the Menu icon on the top right 
  3. Select Email Schedule and enter the email address where you'd like to send the .ics calendar file. The email message contains instructions how to import the file into a calendar program. 

Related: How do I import my exported schedule?

Please note: It appears that Apple iOS 10 does not display the option to "Add All" anymore after selecting the .ics attachment from your email. Please use a computer to import the entire file with all your events into your calendar.