AD:VANTAGE POS App is dedicate to cashiers in brick-and-mortar stores. It has simple interface and it guarantee secure and fast check-out on cashier desk.Basic function of POS App is scan Vouchers from AD:VANTAGE User phones and make transaction.POS app could also be used to deliver 10% Welcome offer to new customers who want to join AD:VANTAGE. All transactions made by POS App are stored in AD:VANTAGE blockchain.