The idea of having an app designed to be user friendly to help attendees plan their schedules and interact with the conference virtually is a good idea.
However, I have two complaints:
1. (Virtual user support) Virtual users in a different time zone must export their schedule via email using the hopefully familiar icon for export, then give their email, then examine the ics file to see the schedule in their time zone. The documentation should be changed to document this workaround. Next, this feature should be added TO THE APP so that virtual users can see session times in their time zone as well as the time zone of conference.
2. (Larger type: Accessibility) The documentation advocates using the larger type option in Accessibility settings. On my iPad, this app does not accomplish this task. I used the zoom option, also in the Accessibility settings for my iPad successfully. The zoom option is my first backup to the Larger type Accessibility feature of the iPad. The app should the accessible, and all features should be documented correctly.