Citymapper - The ultimate transport app - iPhone / Android / Web.
Uber Transit - Uber now offers real time data for public transportation
Captain Train - You are going to love buying train tickets
Embark - A public transport app that works everywhere
TransSee - Real time transit prediction and bus tracker web app.
Wanderu - Wanderu is the simplest way to book bus and train travel. We search hundreds of carriers across North America & Europe and never charge any extra booking fees!