Nowadays, safety issues are a major concern, for example, for parents. Almost all children have cell phones and they always take mobiles with them. In this way cell phone tracking devices are everything parents need to know immediately where their children are at all hours, every day of the year, displayed in a map view. In case of an emergency, people can be located thanks to cell phone tracking devices. They can also control speed limits as they send alerts when limits are passed.
Like automatic route calculation, cell phone tracking devices work with satellites. Though they may save people's lives in some cases, many say it violates people's privacy because with a cell phone tracking device, anyone will be possibly located.