Put simply, a payment gateway is a software application that empowers shippers to acknowledge installments made with credit and charge cards for available and online exchanges. The payment gateway encourages exchange handling by safely scrambling installment data and moving that information between the trader's store or site, the bank that measures the installment, and the bank that gave the card used to make the buy. A payment gateway can be situated either altogether carefully—with Mastercard data being directed in from the shopping basket on a trader's site—or actually with an in-store POS framework at a physical area.