Wendy's has updated its My Wendy's app for iOS devices with the ability to take mobile payments at most of its 5,800 locations in the United States, reports The Associated Press. The fast-food restaurant chain has reportedly been developing its mobile payment system over the past year, testing its app at some of its locations throughout the country. Once opened, the app allows users to find the nearest restaurants accepting the new mobile payment system, which can be enabled through the creation of a Wendy's profile. Unlike the process of mobile payments by other merchants however, a mobile payment at a Wendy's restaurant is processed by showing a cashier a generated six-digit number. According to Wendy's Digital Vice President Brandon Rhoten, this method was enabled to make it more convenient for customers going through pickup windows.