Om1 and Om3 are two popular open source software packages. They are designed to help developers create and manage web applications. Om1 is a full-stack framework that provides a comprehensive set of tools for building web applications. It includes a powerful templating engine, a database abstraction layer, and a powerful routing system. Om3 is a lightweight framework that provides a basic set of tools for creating web applications. It includes a templating engine, a database abstraction layer, and a routing system. Both frameworks are easy to use and provide a great way to quickly create web applications. They are both popular choices for developers looking to create web applications quickly and easily.