Principle
Principle is a macOS app for designing animated and interactive user interfaces, with easy sharing and import from Figma or Sketch.
Score
50
User Rating
1.0
Free/Trial Support
Supported
Starting Price
$129/lifetime
Last Updated
Aug 04, 2026
Overview
What is Principle?
Principle is a design tool that helps create animated and interactive user interfaces for apps, websites, and desktop prototypes, featuring a timeline, artboards, and device presets.
Top Features
- Animation timeline for bounce and ease effects
- Design custom interactions without pre-defined limits
- Multi-screen app flow design with bird's-eye view
- Import from Figma or Sketch with intelligent merge
- Share designs to web for viewing on multiple platforms
- Record feature to export videos or animated GIFs
How to use Principle?
Download the macOS app, import designs from Figma or Sketch, use the timeline for animations, design interactions, and share prototypes via web link or export videos/GIFs.
Alternative Tools
No alternative tools found
Pros & Cons
Pros
- Native macOS app with smooth performance
- Easy sharing to web without installation required
- Supports import from popular design tools like Figma
- Free 14-day trial with usage-based counting
Cons
- Only available for macOS, no Windows or Linux support
- One-time purchase may not include updates beyond version 6
Use Cases
- Designing animated UI for mobile apps
- Creating interactive prototypes for web projects
- Sharing design concepts with clients or teams
- Exporting videos for presentations on social media
Principle Pricing
One-Time PlanFree Plan
Free
$0/lifetimeFree trial to test Principle before purchasing
- 14-day free trial
- Only counts days used
- Full access to all features
One
$129/lifetimeOne-time purchase for lifetime access to Principle 6
- Full version of Principle 6
- Share to web feature
- Import from Figma or Sketch
- Animation and interaction tools
- Device presets for mobile, web, desktop
- Record feature for video/GIF export
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