Principle is the simplest way to animate your app prototypes. Whether you're designing the flow of a multi-screen app, or new interactions and animations, Principle lets build designs for every platform and immediately demo them for your team.

Principle for Mac 4.0 makes it easy to design animated and interactive user interfaces. Whether you're designing the flow of a multi-screen app, or new interactions and animations, Principle helps you create designs that look and feel amazing.