This is the manager-app for the RK006 Master Hub.

Not only is it an interface with 10 separate output ports and two inputs, It can also operate standalone: Even without a DAW, the RK006 can still host, connect and merge multiple MIDI/USBMIDI devices.

This app is an iOS port from the online webMIDI portal. It allows you to design and save configurations in the RK006.

Some review snippets:

"The RK006 is a game changer, making sync, MIDI and signal processing easy, even without a DAW."
(juno.co.uk)

"Retrokits prove themselves invaluable once again to our increasingly complex and confusing desktop hardware setups."
(gearnews.com)

"Incredibly versatile hub for MIDI, USB and modular, and probably the only MIDI interface you’ll ever need in or out of the studio."
(Sound on Sound)