How to lock apps with Screen Time Screen Time, a feature that’s built into your iPhone, can put limitations on how an app is used. You can use it to lock every app except for the phone app.

Whenever you launch the selected apps in the future, your iPhone automatically locks itself, essentially putting the app behind a Face ID, Touch ID, or passcode authentication check (depending on ...

While many apps now support Face ID log in, there are still plenty that don’t— but there’s a hack that can lock any app behind Face ID, thanks to an interesting quirk of iOS.

You can set the partition to unlock in the exact same way as your home screen, but it’s not the only option. It can be a brand new pin code, a pattern lock, or one of your other fingerprints.