This fall's launch of iOS 11 will include secure person-to-person money transfers authorized by Apple Pay, but if you use it with a credit card instead of debit, the service comes with a caveat: an industry-standard 3 percent fee.

Apple's fee, which was first reported by Re/code, is right in line with competitors such as Venmo and Square Cash. The 3 percent fee goes toward covering the overhead associated with credit card transactions.

For those who don't want a 3 percent fee tacked onto a person-to-person transfer, a debit card offers the same service with no fee.

Once money is transferred, it will be available in a prepaid "Apple Pay Cash" card through partner Green Dot. The cash card can be used to make Apple Pay purchases in stores, in apps, or on the web, or it can be transferred to the user's bank account.