Startup Idea : Payment and ordering at restaurant

There is a situation faced by everyone when you have to wait for long time for someone to come and take your order or when you have finished your meal the waiter takes ages to get your bill and then the card after payment. The app will address both these problems with customer being able to browse the menu and place the order. After the meal will be able to pay the bill hassle free. The order number will be used for end to end tracking.