I would not be wrong but it seems to me that a year / two ago, a user asked to make a modular app caustic, because he had found one on the Play store, but it was messy. Therefore, I think I have found the app that could suit this user (it should still be active here).
Daniele Zummo -
Sat, 04/04/2020 - 16:09#1
I found a modular rack synthesizer app