iOS Guided Access
In truth, Guided Access can be many things to many different people. So for your consideration, here are some alternative names that you can keep at the back of your mind to better appreciate when and why you might give it a try:
“Kid-Proof Mode”: Sharing Devices with Children
If you have a toddler and want to facilitate a FaceTime call with a relative, start a Guided Access session before you pass the device off. This will prevent your little one from accidentally hanging up or putting the call on hold by switching to a different app.
“Adult-Proof Mode”: Sharing Devices with Other Adults
The next time you go to hand off your phone to someone else to take a photo, give it a quick triple-tap to enter Guided Access mode first to forego the whole “Oops, I accidentally locked the device” routine.
If you set the passcode in Settings, you won’t have to enter it each time you start a Guided Access session. You can also end a session by double-tapping the side button and authenticating with Face ID, instead of triple-tapping and then entering the passcode.