I have a whole list of apps I was going to mention but then realised that many are on Android as well… bar Damus!

Otherwise though I have quite a few apps which allow me to mix and create music on the fly with synths and FX and more. Very advanced imo with hookups to MIDI instruments over the LAN too.

So,

Damus (duh)

Audiobus (audio app routing program)

Epoccam Pro (virtual webcam for pc)

Blink (Terminal)

There must be more on my iOS devices but they don’t come to mind right now.