Lg g2, just cannot open the app.
Especially the floor plans :)
Had issues with some of the buttons responding correctly. I liked the fact it gave me notification reminders which even popped on my Moto 360.
A useful companion for attendees. Needs more "button pressing" effects to appear more responsive. Should contain individual session survey links. The hamburger menu does not feel native to Android. Cannot swipe to change between days.