Principle
principle.appBuild Difficulty: 5/5
Build a working replacement in a weekend with AI tools
Design interactive prototypes with motion and logic
How to Replace PrincipleOverview
Features
42 features across 9 categories
Animation(5)
Create custom animation curves with bezier easing controls.
Create smooth animations and transitions with keyframe-based timeline editing.
Create depth with multi-layer parallax scrolling animations.
Automatically create animations between similar layers on different artboards.
Frame-by-frame animation control with easing functions and playback options.
Collaboration(3)
Share interactive prototypes with stakeholders via sharable links.
Add comments to designs for team feedback and collaboration.
Track changes and revert to previous versions of your designs.
Core(1)
Build fully interactive prototypes with touch, scroll, and gesture interactions.
Design(15)
Create multiple artboards for different screens, flows, or breakpoints.
Apply Photoshop-style blend modes for advanced visual effects.
Advanced color selection with palette management and accessibility checking.
Reusable components with master-instance relationships for consistent design systems.
Design and preview prototypes in both light and dark themes.
Set up guides and grids for precise alignment and consistent spacing.
Group and ungroup layers for better organization and batch operations.
Organize complex designs with hierarchical layer panels and smart naming.
Use masks and clipping paths for complex layering and reveal effects.
Work at pixel-level precision with zoom controls and alignment tools.
Design for multiple screen sizes with adaptive layout constraints.
Apply drop shadows, inner shadows, and blur effects to design elements.
Automatic alignment snapping for precise object placement.
Full text styling with font families, sizes, weights, and line heights.
Draw and edit vector shapes with bezier curve support.
Export(3)
Export designs and assets in multiple formats including PNG, SVG, PDF.
Generate design documentation with specifications and interaction details.
Export animations and interactions as video files for presentations.
Integration(2)
Import designs from Figma to extend with advanced interactions.
Import Sketch files directly into Principle for prototyping.
Interaction(6)
Add logic flows to trigger different interactions based on user actions.
Connect variables and data sources to dynamic prototype elements.
Drag and drop interactions for intuitive mobile and touch designs.
Support for swipe, tap, long-press, and pan interactions in prototypes.
Design smooth transitions between multiple pages in prototype flows.
Create scroll-triggered animations and parallax effects.
Productivity(3)
Customizable keyboard shortcuts for faster workflow and productivity.
Search and replace text, colors, or font properties across designs.
Unlimited undo and redo functionality with edit history.
Testing(4)
Preview prototypes on real iOS or Android devices via companion app.
Visual inspector showing all interactions and logic flows in your prototype.
iOS app for previewing and testing prototypes on real devices.
Monitor frame rates and performance metrics during prototype playback.
Pricing
Principle
Popular- ✓Full desktop application with all features
Cost Calculator
Pricing data not available for Principle. Check their website for current pricing.
Build vs Buy
Should you build a Principle alternative or buy the subscription? Estimate based on 42 features.
Buy Principle
Better ValueBuild Your Own
Buying Principle saves ~$36,960 over 3 years vs building.
Estimates based on 42 features and a BuildScore of 5/5. Actual costs vary.
Integrations
25 known integrations