小火车时刻

Little Train Time is an app specially designed to serve the people who live in Jinshan District and work in downtown Shanghai.
(Ordinary people travelling from downtown Shanghai to Jinshan by long or short distances can also use it.)

All dependent data is local, no internet connection is needed.
It can also infer your departure site through location services, which is convenient to use.
The size of the application is small, only about 5MB.