CityMaaS Assist is a mobile app using technology to achieve spontaneous and inclusive frictionless travel for disable people. It uses innovative UI/UX front end that are functional specifically to the type of disabilities once a user profile is set up, and intelligent algorithm at the back end to continuously learn users travel behaviour so as to provide optimal options to users on real time. CityMaaS Assist provides end to end service from discovery, routing and essential information providing to booking and payment of each journey door to door in smart cities.