I have used shoebox on the iPhone, but only for unreleased projects for the sake of trying it, I am wary about using it for an app I release on the appstore.
Reason is, I am unsure, but I think being a US citizen, it is illegal to release anything encrypted for export, which is not pre approved by NSA, and I think shoebox may fall in this category.
If anybody is clear on how this works, I would appreciate an explanation.
In the meantime, I am just avoiding shoeboxing my content, although I would prefer to use it if I knew I could legally.
Thanks,
Dave