Monitor Smart is a free utility app developed by Iberdrola S.A. for Android devices. It is designed to help users monitor their electricity consumption and adapt it to their daily routines for a more cost-efficient lifestyle. However, a compatible electricity meter is required to use this app.

Monitor Smart offers detailed information about your electricity consumption, including the consumption of individual appliances, instantaneous consumption, standby mode, and power settings. The app is unique in that it provides detailed information about energy consumption by individual appliances, using a single general meter installed in your home's electrical panel, without the need for individual meters on each outlet.

For those with solar panel installations, the app offers real-time information about energy production and consumption, making it easy to monitor and adjust your usage.

Overall, Monitor Smart is an excellent app for those looking to save money on their electricity bill, and it is easy to use and understand. However, without a compatible electricity meter, the app is not functional.