Life360 is a new app I'm using. I needed a way to track the position of a family member via GPS. This app does that. You could also use it in an emergency situation. For example, you sign up with a group before a hike. If anybody in the group gets lost, use the app.

You could also track where your daughter is taking your car you let her borrow. Put a cell phone in the glove box. The cell phone can act as a GPS beacon that you can track from the comfort of your home.

Just make sure to logout/disconnect when the app is not in use. The invasion of privacy is bold and unapologetic.