Öffi - Öffi - your public transportation companion!
Tickey - Buy tickets for public transport with your smartphone
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!
Citymapper - The ultimate transport app - iPhone / Android / Web.
Trenitalia - Italy train services official app
Embark - A public transport app that works everywhere