To lock notes on your iPhone, you'll need to set up a master password, or allow your phone to use your Touch or Face ID to lock and hide notes.

You can use Notes on iCloud through your iPhone, iPad, or Mac, or in a browser using iCloud's website, to create, edit, and view synced notes.

Navigate to a place on your iPhone where you can see the Maps app icon, like the results of a Spotlight Search. Long-press the Maps app until a menu with options appears. Tap Mark My Location. The pin ...