A free program for Android, by PINERGY.
Pinergy Smart is an app that makes it easy to understand how your electricity is generated and consumed. It does so in a way that is simple, interactive, and easy to use. This means that you can take control of your spending and be better informed about how you’re contributing to a cleaner energy future for all.
The app shows you your current electricity usage and your monthly spend. It then compares the two so that you can see how much you’re paying versus how much you’re saving. You’ll also get the cost of electricity and the carbon emissions generated by the electricity you use.