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Principle vs Spline: Full Comparison 2025
Which is right for your team? Compare pricing, features, and more.
Principle vs Spline: Feature Comparison
| Feature | P Principle | S Spline |
|---|---|---|
| Pricing | From $129/mo | Freemium |
| Founded | 2015 | 2020 |
About Principle
Principle is a Mac-native prototyping tool specialising in smooth, sophisticated animations and micro-interactions for iOS, Android, and web interfaces. Favoured by interaction designers and mobile designers who need to prototype realistic motion and transitions, it produces prototype videos and interactive demos that communicate design intent with high fidelity.
Visit Principle ↗About Spline
Spline is a 3D design tool that runs in the browser, enabling designers to create interactive 3D experiences, animations, and scenes for web embedding. It lowers the barrier to 3D content creation without requiring 3D software expertise.
Visit Spline ↗Not what you're looking for?
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