But that's not all! This year's update has also added new features and social media integration with Facebook, Twitter, and Instagram, so you can share your experience as you experience it. In addition, the mobile app will also have access to all the free BlizzCon video streams, so you can watch all the action, even if you're not present for it in person. And the best part? The app is completely free. The app for BlizzCon 2011 was tremendously handy to have while wandering the convention center -- if you're attending BlizzCon 2013, I highly recommend picking up the updated version for easy access to maps and schedules while you're on the go.