Ive been wanting such an app for awhile. Now its easier for a train novice such as myself to locate where the rails and stations are.
Note to developer: The VTA lines in Santa Clara County have expanded in the last seven years. There are now lines to Winchester station (terminus) in Campbell and to the Alum Rock station (terminus) in San Jose.
One little bug I noticed is when turning "Freight" on in the display options it wont remember the setting when reopening the app after a complete shutdown (removed from hidden suspended task bar).
I have a suggestion to really make this app a train buffs must have. Have an overlay display option that shows which AAR frequency (channel 2 thru 97) is used in the area.
LowBat about US Railroad Map