Pointless Unless I'm missing a hidden entrance to the secret delights of this app, there is info on just 6 (YES, SIX!) of Britain's hundreds of heritage railway sites. I was expecting a map linking to info about most of the UK's preserved and tourist railways.
Newish app, so not all railways on there, though the list is growing. Great way to add extra enjoyment to a railway visit and ride.
Specific to the railways covered and a great way to understand their history and context as you travel
Indian Railway Train Enquiry App for Live Running Status, IRCTC PNR & NTES Rail
Complete app for Indian Railways with PNR status and train live running status