I've been searching everywhere and am stumped by this, and the SDK docs have been no help.
I'm interested in developing a "free" or "lite" version of my ap as well as a paid version. I'd like for users to be able to upgrade without losing their user data that they created with the free version.
If I understand right, the paid version is a different app -- Apple approves it differently. Here's the question -- is there any way to make it share the same Application sandbox user directory as the lite version?
Some apps seem to claim they can do this. I looked at one that has an 'export' feature which exports from one to the next. ??? I have all kinds of disgusting ideas (e.g. encode the data and pass it in a URL scheme from one to the next, or upload to an intermediary website). I hate all of them. Is there a way to do this?