Lá vem o ônibus is an Android app that allows users to track their bus in real-time, making it easier to catch the bus on time. It is available in several Brazilian cities, including Rio de Janeiro, São Paulo, Belo Horizonte, Natal, Curitiba, and Brasília.

The app offers several features, including the ability to search for all buses on a specific line, locate a specific bus, follow a bus on the map, view the bus's speed and GPS data, share bus information via WhatsApp, search for multiple lines at once, and view the last data independently of the server's status.

The app is free, and there are plans to add more features, such as favorites, bus route tracking, increased accuracy of data, bus arrival notifications, location sharing for unmapped buses (collaborative), and the approximate number of people on the bus (collaborative). However, some information depends on the improvement of the service provided by the government, such as the update of new feeder lines for BRT. Please note that Lá vem o ônibus is a private entity and not affiliated with any government entity.