UMMU Multi Server is a macOS App which converts MIDI to Raw-UDP, and vice versa. It has similar functionality to UMMU Server, except that it allows receipt of raw-UDP messages from several iOS devices at once. Designed to be used with the StrongSoft 'Remote' series of iOS Apps for Yamaha Consoles.

What’s New

Version 7.4.0

Added support for Apple M1 processors.

Ratings and Reviews

2.5 out of 5
2 Ratings

2 Ratings

ibc1689 ,

Midi Port selection not being saved

When the application initially launches, all of the MIDI ports are automatically selected. I need only Port3 for source and Port2 for Destination. However, each time the progragram is relaunched, all of the ports are again automatically selected. This causes the application to freeze since its picking up other MIDI information from unwanted ports. Please fix!

HesserCAN ,

Most settings not Saving.

Every time I launch the app I have to reselect my Midi ports and setup all but the 1st IP address. The 1st one saves just fine, but the other 9 don't.

App Privacy

The developer, John Milner, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer