The most complete Play Store app. It shows the actual consumption at the pump, and the cost per mile for cars that have on-board computers and for cars that do not have on-board computers (the application calculates by the odometer of the vehicle from the second supply).
It's the only one that keeps your data saved in the cloud, so when you switch phones, you can continue to use the application without losing any data already saved.
In addition, you can generate complete reports that show how many miles you rode in the month, how much is the average MPG of your vehicle, how many gallons you used and how much you spent in the month. There is the possibility of registering several vehicles.