This application was designed for automatic tracking your parcels/letters that was send via postal company "Yanwen Express" or YANWEN Logistics (www.yw56.com.cn).

Main features:
-Automatic checking status and notification when status change.
-Scanning tracking number.
-Showing days in the way.
-Sorting parcels
-Contains cute widget for homescreen.
-Material design

When you got an error or hang etc. please contact me by email with full description:
your device model, android version and how to reproduce it.
Also please send me your ideas, questions and concerns.