Prices at the Pump is an app that shows where to load gas at the lowest price and how to download it. It can be installed on both cell phones with Android operating system (from here) and iPhones.
The system allows you to select the type of fuel you want to load. There are five options: super gasoline, premium gasoline, common diesel, premium diesel and CNG. Then, the driver will indicate on the screen which brands he is interested in comparing. The app will immediately show the current prices per liter of gasoline in the area on each of the service stations.