Principle

The product is a prototyping application for designing animated and interactive user interfaces, including multi-screen app flows, custom interactions, and motion. It is for designers and product teams at companies of various sizes, as well as individual creators working on mobile, web, and desktop interfaces. It is delivered as a native macOS application with import from Figma and Sketch and one-click web sharing for viewing prototypes in a browser.

Key features

• Timeline for animation easing and bounce
• Custom interaction design without pre-defined transitions
• Multi-screen app flow design
• Import designs from Figma or Sketch
• Device presets and custom artboard sizes
• Hover events and mouse wheel scrolling
• One-click share to web for browser viewing
• Record and export video or animated GIF