Is it possible to build a working business application in a day? How well do the apps work on desktop, tablet and mobile? How advanced are the features? Really zero coding involved? Are these app builders targeting everyday business users (citizen developers) or developers? How well these apps scale?
A visual development approach to develop an application.
Drag-and-drop components and model-driven logic through a graphic user interface.
Relieve non-technical developers or citizen developers from having to write code while still enabling professional developers by abstracting tedious plumbing and infra tasks required in the app development.
App types range from upgrading legacy applications to IoT-enabled smart apps, depending on the platform/offerings. Ecosystem and community to support the user base.