Is there an app in Erffa that can query and locate?

Erffa has an app to view and locate. According to relevant public information, Erffa is a vehicle mapped by smart phone, so its accurate positioning information can be obtained through the map application of smart phone. Smart phone map technology is the application of integrating vehicle sensors into smart phones, which enables smart phones to identify the location, speed, direction and other information of vehicles and display them on the map.