Well, in my perspective, both music and apps are bits (practically free to copy, transfer and store), and the relevant transaction is putting those bits onto an

Well, in my perspective, both music and apps are bits (practically free to copy, transfer and store), and the relevant transaction is putting those bits onto an end user device. While music is routinely pirated (and this action sanctioned in many communities), apps aren't (and it's not because of jailing - this is also true for Android apps). While I'm sure pirated apps are available, I've just never come across them, it's nowhere nearly as conspicuous as pirated music.