Drumli is a tiny touch-sensitive drum. Only two pads to hit the bass and snare drum. As simple as it gets. ;)
trick: choose where you set your device, and tap your screen with variable force but always gently, you don't need to hit it to reach maximum velocity, be kind to your device!
This app has been updated by Apple to display the Apple Watch app icon.
Camare Experimental Camera 
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Loopr Live Loop Composer 