Try Eventbase to create an app for your event.
Create your event app at http://eventbase.com/ The Eventbase app is available from the iOS and Google app stores.
Eventbase allows you to create an app for your event, which attendees can download to their devices. You can show venues (classrooms), Guest speakers (teachers) and events (workshops) with users able to favourite elements of the app.
Looking to create something that was easy to follow and plan from, London 2012 Olympics created their event app using Eventbase.
(Image from eventbase.com)