Mobile app development

Current mobile app concept is to allow the the upload of various graphic design or Jpeg image coupons from various retail stores. These coupons uploads will change from time to time. Once a client has downloaded and installed the app, the client will be able to scroll through all coupons and select one for use. Each coupon can be used only once and then the selected coupon would then be deleted. I have a website which a page could be added if the app needs to have an landing page or interface to add the coupons as an administrator