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.
Another hub question
I've read through a bunch of posts and looked on Amazon, but I'm struggling to find a hub that will work for my current setup. Just go a Launchpad Pro MK3 and want to be able to use it and wired headphones at the same time. I also want to be able to use my Digitone and Digitakt with the hub, on occasion. That means I need a USB C hub that has at least 2 USB A ports, 2 USB C ports, and a PD port would be nice, as well. Everything I find either has HDMI, which I don't need, or not enough of A or C ports. It doesn't NEED to be powered, but it needs to be portable. Any suggestions?