[wongarsu]

Rail operators are also really good at tracking their trains. There are some issues because a) they started much earlier and have longer upgrade cycles, so in some places the tech is ancient; and b) there's less pressure to interoperate.

That said, there is good data with standard APIs in some places, for example across most of the European rail network. I find it very plausible that a similarly funded company from Switzerland or Estonia would add rail information before they add flight information, and if they had come out with the equivalent of Apple/Google Wallet they might have started out with cooperation with rail services to store your rail ticket in your phone.