Syrup Pay is an application that enables fast and convenient payment. This Syrup Pay was designed as a payment method for 11th Street, an online shopping mall in Korea, to allow users to make payments quickly and conveniently while ensuring security. It is now referred to as 11 Pay. Once a user authenticates their identity, links a credit card, and sets up a PIN, they can make payments simply by entering the PIN at the time of checkout, a method that allowed for quick payments even before the advent of biometric authentication.