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.
Layout bug in Loopy HD
Long press on a loop then tap Share, panel will slide to the top.
Tap Email, then Cancel and Delete Draft.
Press down arrow on panel, panel will stay at the top partially covering top two loops.
Must kill app and restart to get panel back to bottom 
This is on an iPhone 6s Plus with iOS 9.2.1
Not sure if related, but Loopy HD doesn't seem to be fully updated for 6 series phone screens. Displays a large scaled keyboard in the email screen, instead of the regular size keyboard apps that aren't being scaled display. This awkward size keyboard is also displayed when editing session names.
Comments
You probably want to cc @Michael on this. Hope the man doesn't have time to read all of our noise!
This happens on my 4s too, iOS 8.4