I got it to work via USB camera adapter and MIDI interface, to use it with a Roland D-05, but only after switching to mono aftertouch. The synth doesn’t respond to polyphonic aftertouch at all, but that’s ok,

I used the same “trick” via bluetooth or USB camera adapter and the Mac and iPad. Both in Garageband and Animoog, aftertouch works when switched to Mono.

Aftertouch doesn’t work at all with Waldorf Nave.

Do you know any app that works with polyphonic aftertouch?

I decided to keep the keyboard. Thanks for listening.