HKCircularProgressView

A simple discrete/continuous circular progress view with current/max properties, customizable appearance and animatable.

HKRadialMenu

A view controller with a radial menu that recognizes touch events

HKRewind

A rewind/forward gesture recognizer and vizualiser à la "Paper by Fifty-Three"

HKRefreshControl

A refresh control that mimics iOS6's UIRefreshControl behavior but is also available for iOS5.