FuelLog, My Cars, Gas Manager, and Fuel Economy Calculator are highly rated applications used in calculating and tracking fuel expenses. My Cars and FuelLog are available for Android-enabled devices while Gas Manager and Fuel Economy are compatible with iOS versions 5.1.1 and 5.0 or later respectively.
These applications allow users to track and log fuel expenses, mileage, and other costs pertaining to a trip such as maintenance and servicing. My Cars and Gas Manager are popular applications because they enable a user to record miles per gallon during a trip. The applications have a top cost of about $5, as of 2015.