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Quote timrae_NI via Reddit :
(quote Tim_R_NI : ) Hi I work at NI on the Kontrol mk3, and can confirm that iPad isn't a platform we support at the moment. On the other hand I don't see any reason why basic midi shouldn't work. First of all make sure you're giving the keyboard power directly through the second power only USB-c port. Secondly if you go to the general settings on the mk3 does it say USB host connected: yes or no? If yes then I think midi should theoretically work, if no then you could try using a USB-c to USB 2.0 cable into a USB hub into the iPad. If the USB controller on the iPad is not playing nicely with the USB controller on the mk3 then an intermediate hub can often help with this. . The browser/plugin/DAW mode would not work but at least you could use the keybed and create some midi templates. .
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