Horarios bus TMB AMB Barcelona by OK Transit is a free Android application that is designed to make it easier for travelers to navigate the city of Barcelona. Despite its small size of only 3 MB, the app offers a wealth of features that make it a comprehensive travel companion.

One of the most useful features of the app is the ability to check the arrival time of buses and metros at any stop in Barcelona. Users can save their frequently used stops as favorites and even rename them for easy identification. The app also allows users to search for stops by name, number, or location on the map.

In addition to the real-time arrival information, the app also provides access to maps and plans of buses, metros, Rodalíes, and trains in Barcelona. The app also offers a dark mode for easier viewing in low-light conditions. With support for three languages - Spanish, Catalan, and English, Horarios bus TMB AMB Barcelona is a must-have for anyone traveling through Barcelona.