This is a very useful app which helps you in calculating the bill amount of the Electricity, Gas, Water, Landline, and Internet services. The user can select the service and can select the billing cycle (Monthly, quarterly, semi-annually, and annually). The next step is to select the user type (Single, Married, or Divorced), and then the number of months in the billing cycle. After that, the user needs to enter the amount of electricity or gas consumed, or the value of the water, landline, or Internet service. After entering the data, the user can click on the calculate button, and the bill amount will be calculated.