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 StoreAudiobus is the app that makes the rest of your setup better.
Cream in 2021?
Came across Cream the arp and looks like a fun and interesting app that seemed to be well received in the forum when it came out. Tempted to try it out. Wondering what anyone who have used it find special that this do musically, amongst other options like StepPolyArp? Also it seems some people found it buggy, but it got a big bug fixed update a few months ago and I wonder if it have gotten better now