Smart Duel Disk is a mobile application that allows you to create a deck with virtual cards and play card games with your friends. It's a part of the Smart Duel Project and the goal is to bring card games to life like seen in anime. It allows users to create their own decks with the cards they want and play with their friends. The app is a tool for the project and is not meant to be used for commercial purposes. There is no multiplayer support right now but the app allows users to set up their own server locally to get a feel of what's to come.