A website primarily provides information and content for visitors to consume. A web application, on the other hand, is interactive software that allows users to perform tasks, manipulate data, and accomplish specific goals. For example, a company brochure site is a website, while a project management tool or customer portal is a web application. If your users need to log in, input data, or complete complex workflows, you likely need a web app. Modern web applications can also include AI-powered features like intelligent search, recommendations, or automation.