I used this application but now a days I uninstalled this application.It works very fine inside train, it will give you correct information, it will show right location and it will work without internet only you are inside the train by gps or nearest mobile tower. But you are not inside the train and you want to know right location if your family members are suffering in train, sometimes it will give you wrong information. because one month ago my father is coming from Gaya to gwalior and when my father reached gwalior railway station at that time it was showing 3-4 back stations.