I thought about links…but the App Store is so easy to use, who needs links! Anyway, a bit of googling turned up this tweet – http://twitter.com/MyRail/status/1087038983

The app has been withdrawn from the App Store for legal reasons. A real shame as it was excellent. Looking at the twitter stream it seems they are trying to get back on the store – here's hoping. This might be a good alternative – iRail.