The popularization of mobile internet and transport applications making passenger transport real-time information available to the general public. In the Metropolitan Area of São Paulo (MASP), the largest urban agglomeration in South America with 21 million inhabitants carrying out their activities every day, these systems have been changing the user’s behaviour. The purpose of this study is to evaluate the perception and use of these applications called Mobility as a Service (MaaS) for the passenger in MASP. To do so, we conducted a survey with 138 respondents that live in MASP in May 2020 regarding the services: Google Maps, Moovit and Citymapper. They evaluated what the application they prefer to, how the applications functions are used by theirs and the public transportation frequence of use and after the anwers were used in a descripitive statistics analysis. The results indicated a predominance of youth users that plan their trips using public transportation and seek real-time information through by these applications.