Principle is unclaimed —

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

Designing the flow of a multi-screen appDesigning new interactions and animationsPrototyping to communicate design ideas to engineering teamsSharing interactive prototypes with others via the webRecording design interactions as video or gif for sharing

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

At a glance

free trial

TypeDesktop app

DeploymentInstalled (local)

PlatformsmacOS

Fordesigners, design teams

Integrations

SketchFigma

Resources

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.

LicenseQuote

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