The Transit Go Ticket App allows riders to buy bus, rail and water taxi tickets using their mobile device. No more worries about carrying cash for transit fare, Transit Go Ticket is good on King County Metro Buses, Sound Transit Express Bus, Light Rail and Sounder, King County Water Taxi, Seattle Streetcar and Kitsap Transit routed buses and fast ferry.
Learn more at: https://kingcounty.gov/depts/transportation/metro/fares-orca/transit-go-ticket.aspx