Winnerfinger is a mobile application that you can earn free stuff or discounts by scratching the cards. Users can collects cards in certain periods and play with them whenever they want. It is working like a lottery. Users can redeem the deals in stores. In design perspective, as you see, i have used patterns, physical surfaces to make UI more realistic. Because, i have considered user habits about scratching and playing with cards. Clean type of icons and simple typography makes the UI feelings balanced between real and digital platforms as well. Enjoy.