GasLog - Gas Mileage Tracker is a free travel and navigation app designed by eSocial for Android users. This app is a great tool for vehicle owners who want to track their gas mileage or fuel economy. GasLog offers a 30-day trial, and to keep it, users can install GasLog Unlock Key for only US$0.99.

With GasLog, users can track their gas mileage or fuel economy in MPG, L/100km, KM/L, or KPG. The app provides comprehensive statistics, including MPG, mileage, fuel price, fuel cost, CO2 emission, and more. GasLog also presents line charts and bar charts for MPG, fuel price, and other data.

One of the best features of GasLog is that it offers official US government fuel economy ratings, which are converted to the measurement system of your country. The app also provides data backup and restore options, as well as the ability to transfer data between GasLog and TripLog. Additionally, GasLog supports units of measure, date format, and currencies in over 20 countries.

Overall, GasLog - Gas Mileage Tracker is a comprehensive fuel economy app that offers excellent customer support and replies to all emails promptly.