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.
OT(ish): iOS Samples —> Digitakt app
SRC Transfer App by Jakob Penca:
Was hesitant to pull the trigger on this due to the price (£9.99) but if you’ve got a Digitakt and you’re into iOS music making it’s definitely worth consideration, access AudioShare, Dropbox etc through iOS files app and directly upload to the Digi via USB and CCK, no computer required! Actually a whole lot slicker than Elektrons own computer transfer app. I keep my ‘best of’ sample library on Dropbox so this works brilliantly.