"Where are you ?" helps to find your friend/partner or own old position.
He/She simply sends with the app an email or sms to you.
You just open with the app the email annex or paste sms text. The app then shows on the map where your friend/partner has send the info.
Save own position locally.
Open stored local position to use app to guide to older position.
In example to find back to a position in the city / parking garage, etc.
The app also shows in a camera the direction you have to follow, including the distance to the target position.