THX prefers that users connect the app to their television via Apple's official HDMI adapter, but AirPlay Mirroring can also be used for the visual tests -- audio tests won't work over the AirPlay protocol.
But those that do try out THX's method will be rewarded with modest improvements. In our tests, it worked as advertised. Speaking to The Verge, company reps made clear that Tune-Up isn't meant to be a substitute for having a professional visit your home for a thorough calibration. Instead, it's a tool that can (fairly quickly) help your new TV look better than it did the first time you turned it on. And as an added bonus, you'll be able to play the famous "deep note" that moviegoers hear before THX-certified movies in lossless audio.THX tune-up is a free download on the App Store for 1 week, before rising to $1.99. [Direct Link]