If there was a High Sierra iPhone app where you could access festival information (daily schedule, artist bios, news & updates, etc) would you use it?

If there was a High Sierra iPhone app where you could access festival information (daily schedule, artist bios, news & updates, etc) would you use it?   Of course! Don't have an iPhone, but would use it if I did Where's the love for my Droid or Blackberry? Phones at High Sierra? No way! Only if I could keep a cell phone charge up there