用户购买了定制的GPS定位产品，才能下载使用本APP软件进行GPS产品的定位和追踪，APP软件完全免费。本APP软件的主要功能包括车辆列表、实时追踪、历史回放和报警。本APP的演示视频地址：http://www.tudou.com/programs/view/IqC62DqOGko/
The user who buys the GPS equipment of customized can download and use the App to location and track the GPS equipment, the App is totally free. The Apps fuctions include Car-list、real-time-tracking、history-tracking and alarm-list。The App Demo video address is: http://www.tudou.com/programs/view/IqC62DqOGko/