I tested another Android app called DriveSmart | Are you a good driver. It's available in english and spanish.
You basically collect points for being a good and eco-friendly driver. It takes the measurements from the G sensor of your phone and you loose points for fast cornering, speeding, harsh braking and strong accelerating.
The app will record your trips and gives you some data afterwards like distance, time and average speed, incidents (the things I named above).
Although I was driving pretty fuel efficient, it seems like I can improve my eco score:
Overview from my last trip:
