Dpay will automate the process of tally for the daily Milk takers. It will allow the Milk vendors and Milk Consumers to select the contacts and set the price per liter just one time (setting the price only for Milk vendor) and rest all will done the App itself that is it will sync both the data's and alert the about the status of milk every day and at the end of the month, the app will show the total cost of milk.