It’s a ‘bus’, so I like it already …
MidiBus is a MIDI clock sync generator and monitor.
Choose your bpm, time signature and MIDI destinations. Press the play button and all selected apps and devices will receive a synchronised, rock-solid MIDI sync clock source.
On the flipside, monitor the MIDI clock signals of apps and devices (including MidiBus itself) and measure how accurate and stable they really are. You might be very surprised at the results.
MidiBus is based on the iOS MIDI development library of the same name. Full details at http://midib.us
The app is priced at $2.99