Mobile Application for Restaurant Listing

Need a mobile application developed for iOS, windows and Android. The application will need the following features: - Deals with Location - Ability to register through Facebook account - User can see update deals in the city - Integrated map and how far the Deals from user stand point -How the deal work - the ability to change the city and search for existing Deals or coupons - Tool in which users can recommend Deals and Discounts from Restaurants - Optimizing the Application to get data from existing website.