Hubby is taking me on a 3-day Dream cruise at the end of September for our anniversary. He's recently started a running app & will still be working his schedule when we sail. I know from this past May that I can't just put my iPhone on Airport mode & have the app function along with my Bluetooth earbuds. Is there some other setting I can change so we can utilize our Bluetooth earbuds without the phones being able to connect and incurr bazillions of dollars in charges?
TIA!
TIA!