Sure -- plenty. Here's another example. It replaces a custom hardware gadget that costs much more: https://itunes.apple.com/us/app/tunelab-piano-tuner/id335568

Sure -- plenty. Here's another example. It replaces a custom hardware gadget that costs much more: https://itunes.apple.com/us/app/tunelab-piano-tuner/id335568329?mt=8 https://itunes.apple.com/us/app/tunelab-piano-tuner/id335568...