PPrinciplevs
Figma

Figma: Cloud-based design tool with animation capabilities and real-time collaboration, cross-platform (not macOS only).
Animate your ideas, design better apps
As of 30 August 2026, Principle starts at $129/one-time. Principle makes it easy to design animated and interactive user interfaces. Softwr lists it under Design. Principle is made by Principle Software, launched in 2015, available on macOS.
Overview
Principle makes it easy to design animated and interactive user interfaces. Whether you're designing the flow of a multi-screen app, or new interactions and animations, Principle lets you create designs that look and feel amazing.
The honest half
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Principle.
Cross-shopped
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.

Figma: Cloud-based design tool with animation capabilities and real-time collaboration, cross-platform (not macOS only).

Framer: React-based interactive design and prototyping tool with code-driven animations and component reusability.

ProtoPie: Advanced interaction prototyping with support for logic, variables, and complex user flows without coding.
Pricing
Taken from the vendor's own pricing page. Prices move, so check before you buy.
License
$129 /one-time
Upgrade License
$99 /yr
Capabilities
Timeline-based animation
Interactive prototypes
Touch gestures
Component reuse
Video export
Sketch import
Figma import
Driver animations
Sketch
Integration with Sketch
Figma
Integration with Figma
Video export
Integration with Video export
Local files
Local files security feature
Answered, with sources
Each answer names the page it came from, so you can check it rather than take our word for it.
No. Principle is macOS only and runs on Intel and Apple Silicon Macs. There is no Windows or Linux editor available; however, prototypes can be shared and viewed on any platform via web link.
SourcePrinciple costs $129 for a one-time purchase with 1 year of upgrades included. After 1 year, upgrade licenses cost $99/year. A 14-day free trial is available with all features included.
SourceYes. Principle supports importing designs from Figma and Sketch with intelligent merging of re-imported files. Some Sketch properties such as paths, fills, borders, blur effects, masks, and text layers are flattened upon import.
SourcePrototypes can be shared via web link with one click (File > Export > Share to Web). Recipients can view and interact with prototypes in any browser on any platform: Windows, macOS, Linux, Android, or iOS. No installation required.
SourcePrinciple does not support vector morphing, where vector objects transform into other vector shapes. It also has limited asset creation capabilities and editing is restricted to basic operations like scale and rotate.
SourceBehind it
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Prototyping and specification tool for conditional, data-driven interfaces
Per user per month