CityBus Lviv is a smart app designed for online tracking of public transport in Lviv, available on Android for free. The app's main function is the real-time tracking of public transport, which depends on an external source of GPS data. However, the cooperation of the source and the app is not guaranteed, and there may be some differences between the actual transport position and the one shown in the application due to significant intervals of data updates.

The app provides only actual information, filtering data to show only what is present. It also allows users to save their favorite routes and apply them with just a couple of taps. With the smart view feature, users can see all vehicles equipped with GPS trackers on the map, not only the selected routes. The app also has a route search feature, where users can choose two points on a map and filter the search results to display suitable vehicles.

CityBus Lviv uses received information about coordinates, speed, and heading to predict real-time vehicle location with high probability. The animated display of the vehicle movement on the map is smooth, with almost no jumps. The app also provides traffic optimization and speed and heading visualization. The color routes identification feature distinguishes routes by color of their marker, making it easy to determine the heading and speed of the vehicles needed at a glance.