The app mention above called electricity bill app, and the advantage of this app is 
1. where you can find the current running unite. 
2. You can compare the previous month unite and current month unite. 
3. You will get the notification to make the payment within your due date. 
4. You Will get a notification if any issues in the meter. 
5. If any issues with a meter or any problem with the power you can call the toll free number mention in the app.