vioscaleAI
Comparison

Principle vs ProtoPie

On the evidence we track, ProtoPie leads this comparison with a composite score of 59/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Principle full profile →ProtoPie full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Principle47
★ProtoPie59
Score
vioscaleAI score
Principle47 / 100low · 40%updating
ProtoPie59 / 100medium · 56%
Pricing
Free tier
Principle✗
ProtoPie✓
Model
Principlecommercial
ProtoPiefreemium
Price level
Principlehigh
ProtoPiemid
Starting price
Principle$129
ProtoPie$25
Transparent
Principle✓
ProtoPie✓
Integrations
Count
Principle2
ProtoPie16
Security
Certifications
Principle–
ProtoPieISO 27001:2013, ISO 27701:2019
Gdpr
Principle–
ProtoPie✓
Iso27001
Principle–
ProtoPie✓
Trust center
Market
Availability
Content
Faq
Principle4 items
ProtoPie7 items

Capabilities

Feature-by-feature on the axes that matter for mockup tools. “-” means undocumented, not absent.

Capabilities
Architecture model
PrincipleLocal mac native app
ProtoPieManaged cloud saas browser
Css flexbox based auto layout engine
Principle-
ProtoPie✓
Stateful interactive prototyping with variables and logic
Principle✓
ProtoPie✓
Component variants and property overrides
Principle-
ProtoPie✓
Design token variable mapping colors spacing typography
Principle-
ProtoPie-
Real time multiplayer crdt cursor sync
Principle-
ProtoPie-
Developer mode handoff environment css swift export
Principle-
ProtoPie-
Advanced micro interaction animation smart animate
Principle✓
ProtoPie✓
Third party plugin ecosystem API
Principle-
ProtoPie✓
Offline editing mode with conflict resolution
Principle-
ProtoPie-
SOC2 type ii
Principle-
ProtoPie✗
Gpl or permissive oss license
Principle-
ProtoPie✗
Pricing model
PrincipleFlat lifetime license
ProtoPiePer editor seat monthly

What each one is

The product in its own terms, so the numbers below have context.

Principle

A native macOS application for designing animated and interactive user interfaces across web, mobile, and desktop platforms, featuring keyframe-based animation controls and automatic transitions between artboards.

Independently observed

ProtoPie

Leader

A tool that enables designers to create realistic, interactive product prototypes with visual logic programming using variables, triggers, and formulas—no coding required. Includes AI features for interaction generation and developer handoff with automatically generated specifications.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Principle

from $129Perpetual licence

$129 per computer. Renewal available for $99 to access new features released after initial purchase.

  • Principle License$129 per computer, perpetual license
    • Timeline animation with keyframes and easing customization
    • Multi-artboard screen flow design
    • Automatic animations between named layers on different artboards
    • Hover and mouse wheel event support
    • Import from Figma and Sketch with intelligent merging
    • +3 more
as of verify ↗

ProtoPie

Leader
from $25/moSubscriptionFree tier

Free tier available. Paid plans from $25/mo (Basic) to $47/editor/mo (Pro). Annual billing saves up to 26%. Enterprise available by quote.

  • FreeFree
    • 2 prototypes
    • 8 scenes per prototype
    • 50MB Cloud storage
    • Personal libraries
  • Basic$25/mo (1 seat)
    • Shareable links
    • AI Credits
    • No watermark
    • 20 prototypes
    • 10 scenes per prototype
    • +2 more
  • Pro$47/editor/mo (min. 3 seats)
    • All Basic features
    • Unlimited prototypes
    • Unlimited handoff recordings
    • 5GB cloud storage per team
    • Local prototype saving
    • +2 more
  • EnterpriseContact sales
    • All Pro features
    • Custom hardware integrations
    • Private server & admin rights
    • Custom fonts
    • ISO-compliant security & SSO
    • +1 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Principle✗
ProtoPie✓
iOS
Principle✗
ProtoPie✓
Android
Principle✗
ProtoPie✓
macOS
Principle✓
ProtoPie✓
Windows
Principle✗
ProtoPie✓
Deployment
Cloud / SaaS
Principle–
ProtoPie✓
Self-hosted
Principle–
ProtoPie✓
On-premise
Principle–
ProtoPie✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (2)
  • Figma
  • Sketch

Principle

2 total - 0 not shared
  • Figma
  • Sketch
Independently observed

ProtoPie

Leader
21 total - 19 not shared
  • Adobe XD
  • Arduino
  • Unity
  • IFTTT
  • Gamepad
  • Logitech G29
  • API Plugin
  • Spline
  • Rive
  • Bezi
  • Google Maps
  • Unsplash
  • Pexels
  • Pixabay
  • Google Fonts
  • Blokdots
  • Maps
  • Custom Plugins
  • ChatGPT
Independently observed
Still deciding?

Principle or ProtoPie: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.