This app provides promotion items of Yum Yum Products and searching coupon that is in Yum Yum (Instant Noodles) items. And user can get promotion prize if he or she wins his/her coupon. When user win lucky draw, we inform to user according to user's info that we collect. User registration is only one time when user first install app. In this app, there is language change settings.In Lucky Draw Page user can the 10 digits Coupon Number which is on the inside surface of Yum Yum Sour Soup Shrimp Packaging Film.The submitted coupon numbers can be seen in the coupon list page.