A free app for Android, by ALSA Autobuses.
Alsa Mobi4U is the best app for planning your urban and intercity Alsa bus journey, with real-time information and a map. It offers all the information you need: the routes, the times, the stops, the fares, and the services in each stop. It also allows you to choose the best routes for you, depending on your interests. The routes are divided by the region you want to go to, and you can choose between different regions, such as the East Coast, the West Coast, the Centro, or the North.
In addition, Alsa Mobi4U allows you to plan your trips in advance and to link your Alsa Plus account to get more benefits.
You can find the best routes and the best stops in the city you want to go to.