This is an iOS application I have made using Pure Data in xcode. It is using a wrapper called libpd and was created in xcode using objective C. The app is made of switches and the idea behind it was that the user would first make a drum beat and as they changed the tempo the drum beat would either speed up or down and the meloly would change with the tempo. The app works with sounds made only in Pure Data and the patch is available to download below.
I have also posted a video of the App working in xcode's simulator.