A system and method for providing a personalized shopping experience with a portable computing device (“PCD”) are described. The system and method may include checking-in PCD consumers upon entering an establishment of a merchant. The checking-in of the PCD consumer may include verifying credentials for gaining access to a central mobile payment controller and receiving a merchant identifier corresponding to a merchant from a computer communications network. Next, a scan of a machine-readable code associated with at least one of a good and a service may be received. Information associated with the machine-readable code may be retrieved from a database. Subsequently, a personalized price for the at least one good or service may be determined by applying one or more rules. The personalized price may be transmitted over a computer communications network to the portable computing device for display to the PCD consumer.