eco fuel gauge is a free Android application developed by kandyソフト in the lifestyle category. It allows users to calculate fuel consumption of their cars by entering mileage and fuel data. The app has four main features: List, Aggregate, Graph, and Vehicle Notes. Users can choose from four different fuel types: km/L, mi/L, MPG, and L/100km. The app also provides a manual for further guidance.

The List feature enables users to view their fuel consumption data in a list format. The Aggregate feature provides a summary of the fuel consumption data. The Graph feature displays fuel consumption data in a graph format. The Vehicle Notes feature allows users to add notes about their vehicle.

Overall, eco fuel gauge is a useful tool for car owners who want to keep track of their fuel consumption. The app is easy to use and provides accurate calculations. The manual is a helpful addition for users who need further guidance.