Well known mainly for Cubase software, the Steinberg launched a few days ago on the App Store a free application, but very useful for those who work with music production: o Smart Click, an accurate metronome for iOS.
As Wikipedia explains:
The metronome is a clock that measures the tempo of the musical. Producing pulses of regular duration, it can be used for purposes of study or musical interpretation.
The app's interface is not the most beautiful, but it is very practical and intuitive. There are several built-in metronome modes and varied ways to adjust your time.
Oh, and it includes Cubase's standard ?click? sound. ?
[via The Loop]