BE WARNED: (ver.3.1.36) This app falsely advertises features not available!
They are selling you their infatuation with themselves and "maybe-some-days." I just spent four hours searching for how to use IAA and Audiobus, (because, ya know, Im just a lazy user who should use the help file) The only place IAA and AudioBus exists with this app is in the bogus feature list here in the App Store. I found nothing but excuses on the forum and angry users. I have a screen cap of the feature list given here. It is a lie. Inter-app audio is NOWHERE in this app.
ALSO: This app delivers a 50msec audio delay at best and requires a reset upon every first use audio track per project (iPad Air2). Got your headphones on when opening an audio track? You get your ears stabbed with a 10k fault Tone because the thing has to hear itself EVERY TIME to set the audio latency. This is NOT a DAW.
A beta you pay for. Do they know how a solo switch is supposed to work? Artifacts and odd behaviors. Serial numbers, registrations, sloppy in app purchase procedures. Terrible when attempting to record live audio. No ability to monitor live input with FX without over taxing the CPU on a Air 2. Big mistake, Id like my money back. Get Auxy or Medly if you want a synth writing app. This is garbage.
EDIT: Read the developers responses and you can see theres little chance of any real improvement to come. These are not "support" questions! These are largely complaints from experienced users. That the developer is so utterly clueless as to why these issues exist shows the incompetence we are dealing with. Its really very simple: IT SHOULD FUNCTION AT LEAST AS GOOD AS IT USED TO, NOT WORSE. Pretty colors may attract new users but it is perfume on poop. Want to reclaim your market share? Find a previous user and LISTEN TO THEM!
PS YOU released it like this! That says just about everything we need to know. There are no reasonable excuses for selling an app with this kind of misrepresentation. Caveat emptor, buyers beware.