With the release of iOS 18 on the iPhone in September 2024, there is a new feature that enables the locking down of any application with Face ID Recognition.

I really love this feature as it is so useful to lockdown applications that were previously unlockable such as your iPhone contacts, the Phone app, Apple Music, Messages etc.  This means that for someone to be able to make a call on your phone they would not only need to get access to your Phone, but they would also required a 2nd step Face ID to be able to open the App.

I love this extra layer of security.

Here is a short video that goes through how to enable this feature, enjoy!

Added Note: After locking down apps I have noticed that if you use CarPlay, any locked down apps will not show up in CarPlay, to use them in CarPlay you will need to remove Face ID recognition beforehand and then re-enable the feature afterwards.  This may be something that Apple look at fixing in upcoming patch releases, I will keep an eye out for any changes.