Drag and drop App Builders enable rapid application development (RAD) of apps. You create screens by dragging and dropping components on a design surface and then configuring properties.
Most components come with built-in presets to support common usage scenarios. These presets encapsulate design best practices for consistent designs out-of-the-box. You can also select from pre-built applications and layout templates to get started with a functional app shell. This lets you create the UI faster than having to learn platform-specific programming knowledge.