Wecan is a mobile phone positioning app，it is supported by GPS positioning technology，it can positioning vehicle and mobile phone‘s location real-time。
below is the major function of the app：
Real-time positioning：positioning vehicle and mobile phone‘s location real-time
trajectory replay：you can check the trajectory of other people or other vehicle 
below is the steps to use the app ：

1.Download and install the app，you can search the key word “wecan” in the app market and download it.
2.Register and active the app，you can finish register though phone client-side.
（Notes：new user will have 24 hours to use all the functions of the app free）
3.You can experience wecan at once when you finish activation

4.Buddy positioning：first others should install wecan ，then you should add him or her buddy，at last you can positioning him or her by wecam wherever or whenever。

5.Trajectory function：select the buddy and then click trajectory button，Select the time u want to check，then you can check the trajectory of the buddy over the past time which you have selected。