Principle
Animate Your Ideas, Design Better Apps·principleformac.com
Principle is a native macOS application for designing animated and interactive user interfaces for web, mobile, and desktop. It lets designers create multi-screen app flows, custom interactions, and animations using a timeline-based interface. Users can import designs from Figma or Sketch, share prototypes to the web with a single click, and export videos or gifs of their interactions.
What it's for
Features 16
- Components for creating and editing reusable elements
- Custom animation mappings
- Device presets and custom artboard sizes for mobile, web, and desktop design
- Drivers with driver sources, driven properties, and driver keyframes
- Export interactive page as a standalone HTML file
- Free-form interaction design without pre-defined transitions
- Hover events and mouse wheel scrolling support for web/desktop prototypes
- Import designs from Figma or Sketch with intelligent re-import merging
- Keyframes, easing curves, and springs for custom animations
- Layer flattening handling on import
- Multi-screen artboard design with bird's-eye overview
- Native macOS app with Full-screen mode, Retina interface, and Auto Save
- Principle Mirror
- Record feature to export video or animated gif of interactions
- Share to Web: one-click sharing viewable on Windows, Linux, macOS, Android, and iOS
- Timeline-based animation editor
Pricing
Principle is sold as a one-time license for $129 per computer, renewable for $99 per computer per year to keep receiving new features. Additional seats can be added at pricing available on request.
One-time purchase of $129 per computer.
Includes all new features released within a year of purchase; after that, new features require renewal to use