This is a repackaged open-source software product with additional charges for application deployment and AMI support and compliance. Rails is a web application development framework that is written in the Ruby programming language. It is specifically designed to simplify web application development by providing certain assumptions and conventions that streamline the process. With Rails, developers can write less code and achieve more compared to many other programming languages and frameworks. Seasoned Rails developers often find that it adds an element of enjoyment to web application development.