By “mockup“, we mean a quick sketch that gives an idea of what the site or application you are planning to build will look like. When we say “prototype“, we’re referring to something functional, and with Lumzy we’re NOT talking about simply page-linking (like so many other so-called “prototyping” tools provide). No way, we’re talking about functional prototypes – where a user can perform events such a clicking on buttons, selecting values from dropdowns, filling in text fields, scrolling lists, etc…, and those events can trigger actions. These actions provide the client with the experience they’d expect from a functioning site or application, such as seeing popup windows, or alert messages, or being taken to other pages or even to other websites (yes you can launch real “live” URLs from within your prototype).