Ruby on Rails, or simply Rails, is a server-side web application framework written in Ruby under the MIT License. Developed by David Heinemeier Hansson
License: Open Source
Ruby on Rails is a full-featured web application framework that emphasizes convention over configuration, making it ideal for rapid development. Agile Toolkit, on the other hand, is a lightweight and flexible framework that is easier for beginners and focuses on performance, but may not have the same level of community support or resources.