Three quarters of Coachella attendees are using the app, and 90 percent of them are using it on iOS.

Coachella — more properly the Coachella Valley Music and Arts Festival — is an annual celebration held at the Empire Polo Club in Indio, California. The Coachella app lets attendees view the lineup, add favorites, create schedules, and even see Twitter and Facebook social activity related to the event. And over two thirds of the people there were doing just that on an iPhone or iPad.

Gopi Sangha, Director of Technology for the festival revealed that Coachella's audience were "heavy iOS users" during an interview with Robert Scobel, saying:

It's a luxury to have all our audience kind of sit on one platform so we can nail the experience for that.

SnapChat, Uber, and Waze were all called out for helping keep attendees connected and the show running smoothly. (You can catch the iOS specifics at around the 6:20 mark.)