Audiobus: Use your music apps together.
What is Audiobus? — Audiobus is an award-winning music app for iPhone and iPad which lets you use your other music apps together. Chain effects on your favourite synth, run the output of apps or Audio Units into an app like GarageBand or Loopy, or select a different audio interface output for each app. Route MIDI between apps — drive a synth from a MIDI sequencer, or add an arpeggiator to your MIDI keyboard — or sync with your external MIDI gear. And control your entire setup from a MIDI controller.Download on the App Store
Audiobus is the app that makes the rest of your setup better.
Regarding the "Poison-202" synth on macOS...
It appears this synth (which is great on iOS) has not been updated in years to run on macOS beyond "Big Sur", which was quite a few generations of OS previous.
Anyone know if it will work on an M1 Apple computer running macOS Monterey?
Honestly, I'd rather JimAudio's developer simply 'checked the box' to allow the iOS version to run on desktop at this point and let the chips fall where they may.