This app is used to alert people in your local area when someone is reported missing. once the app is installed it works in the background comparing your location to the database of reported people. it will notify you of anyone reported missing within a 15 miles circle of your position. you do not need to check the app as it will notify you as soon as you enter an area. this will work not only tell everyone who live in the area, but also people who are visiting the area.