A loan applicant with a very good or excellent credit score will be unaffected by an Apple credit entry on a credit report.
An application for credit dings your credit score, that's a fact. Having an open credit account also reduces your average age of accounts, which reduced your credit score. Another fact. While it may drop someone with a very good, 800 credit score into the 780s and probably have no real effect on their ability to get credit, it's still not something some of us want on our credit report. Who knows what lenders are looking for.