It's free of charge to get the installation package of Costa Bus, also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 1.5 and above. It's safe to download this application. Diego Urtado is the creator of the tool which can be found in the Transportation category.
The latest update of Costa Bus was released on January 10, 2012 and the app has been installed by over 1K users. The average rating for this application is 3.6 on Google Play.