Pay-At is the smartest card payment system that combines a smartphone with a small, lightweight domestic lowest-cost reader. * Supports both magnetic reading and IC reading in one device. * It is used in many large corporations and sales places, and supports both PG payment and VAN payment. * Provides system interworking with powerful API. * You can make payment by calling Pay-At from your app with the app call. * Provides a rich feature set and system that is different from the one that offers