Principle vs Spline
A detailed comparison of Principle and Spline in 2026. Compare pricing plans, features, and find out which design service is right for you.
Principle
Animated and interactive UI design tool for Mac
Principle is a design and creative service that provides animated and interactive ui design tool for mac. Founded in 2015 and headquartered in San Francisco, California, Principle offers 1 pricing plan. Contact Principle for pricing details. Key features include Animation design, Interactions, Auto transitions, Drivers. Principle is a popular choice for users looking for quality design subscriptions.
Spline
3D design tool for the web with real-time collaboration
Spline is a design and creative service that provides 3d design tool for the web with real-time collaboration. Founded in 2020 and headquartered in San Francisco, California, Spline offers 3 pricing plans. It offers a free tier as well as paid plans starting from $9/month. Key features include 3D design, Real-time collaboration, Web export, Animations. Spline is a popular choice for users looking for quality design subscriptions.
Feature Comparison
Side-by-side comparison of features and capabilities
| Feature | Principle | Spline |
|---|---|---|
| Starting Price | Contact sales | Free |
| Plans Available | 1 | 3 |
| Year Founded | 2015 | 2020 |
| Headquarters | San Francisco, California | San Francisco, California |
| Animation design | ||
| Interactions | ||
| Auto transitions | ||
| Drivers | ||
| Components | ||
| Sketch import | ||
| 3D design | ||
| Real-time collaboration | ||
| Web export | ||
| Animations | ||
| Physics | ||
| Materials |
Pricing Comparison
Compare all available plans and pricing tiers
Principle Pricing
Spline Pricing
Frequently Asked Questions
Is Principle or Spline better in 2026?
Both Principle and Spline are excellent design services. Principle offers Animation design and Interactions, while Spline features 3D design and Real-time collaboration. The best choice depends on your specific needs and budget.
How much does Principle cost compared to Spline?
Principle starts at $Free/month, while Spline starts at $9/month. Both offer multiple pricing tiers to fit different budgets.
Can I track both Principle and Spline subscriptions?
Yes! TrackMySubscriptions lets you track all your subscriptions in one place, including Principle and Spline. Get renewal alerts, spending analytics, and never miss a payment — 100% free.
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Track Both Services in One Dashboard
Whether you choose Principle, Spline, or both — track all your subscriptions in one place with smart alerts and analytics.