A free program for Android, by Sense Labs Inc..
What is it about?
The Sense app is a smart utility for your home that provides an accurate, real-time, and easy way to track energy consumption in your home. It is compatible with both Wi-Fi and Ethernet networks and works with all modern smartphones and tablets.
It can monitor both AC and DC power and works with both Wi-Fi and Ethernet networks.
How does it work?
The Sense app connects to a Sense home energy monitor or Wiser Energy monitor installed in your home’s electrical panel.
The monitor analyzes changes in current and voltage one million times per second.