The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Star Technologies:
The Zipset app, when downloaded onto your iPhone 4S, 5, 5c or 5s, or iPad Mini and iPad (3G or later) will provide the convenience of wireless remote operation of the Zipset System Hand Held Controller, HHC-1R. The app allows the balancing technician with their iPhone, via the HHC, to adjust the CW or CCW positioning of the inaccessible air balancing damper. In addition, there is visual indication on the iPhone graphic that the damper actuator is moving the damper, or if not, a red indicator glows to reveal a possible open or short wiring problem. A low controller battery alert is also featured as a convenience.