Alternately, I’m looking for the following functions. Probably asking for too much from iOS app
Audio pitch shift;
Audio time stretch. Can audio file tempo be mapped and made to match tempo of a separate audio file?
MIDI support. For educational/demonstration purposes it would be very helpful if MIDI notes on a piano roll can have different colours. Especially if overlapping notes assume a unique colour.
Ability to view MIDI tracks and audio tracks on same screen.
Pitch shift and time stretch is planned to be added in a future update.
The Cubasis project importer extension (available as free download) allows to import Cubasis projects into Cubase (cross-platform). Apart from this Cubasis allows to export files in various ways (separate files for tracks, MIDI File Format 1 export).
At this moment a trial version of Cubasis is not available.
To learn more about Cubasis please have a look at the manual, that is available online (next to the in-app version): Getting Started