Touchscreen devices are great, and if for some reason you don’t want to keep touching the screen on your iOS device in order to control it, you might want to have a look at this device.
IK Multimedia has released its device called iRing, and this device is basically a motion-tracking controller for iPhone, iPad and iPod Touch, and it’s designed to work mostly with music apps, and with this device you’ll be able to control your apps without even touching the display of your iOS device at all. iRing comes with identifiable markers that are tracked by device’s front camera in order to correctly track your hand movement and position in 3D space. As for the compatibility, this device will work with apps such as Groovemaker, DJ Rig, AmpliTube, SampleTank and more. IK Multimedia has also launched its SDK that allows developers to create their own apps compatible with iRing.
IK Multimedia iRing might be useful if you use music apps, and as for the price, this device costs $24.99.