Let’s get one thing straight. You know that you should never, ever share your iPhone or iPad passcode with anyone you don’t trust implicitly, like a spouse or adult child, right? That’s because, with your iOS passcode, someone could change your Apple ID password, and if you use iCloud for email, completely steal or otherwise abuse your online identity. (Scared? Good. If you’ve given anyone your passcode, go change it right now. We’ll wait.)
So if sharing your passcode is such a terrible idea, how do you let someone else use your iPhone or iPad temporarily? Perhaps you want to let your kid play a game in the car while you focus on tricky winter driving. Or maybe you time running races with an iPhone app and want someone to do the timing without giving them full access to your iPhone. Whatever the reason you want to give someone limited access to a single app in iOS 13, the solution is Guided Access.