Reviewed by the Softwares.com Editorial Team · Last updated June 2026 · How we rate
Key facts
- Vendor
- Principle
- Pricing
- One-time — From $129 once
- Free tier
- Free trial (14 days)
- Platforms
- Mac
- Best for
- Motion Designers, Ux Pros
- Editor rating
- 4.3 / 5
- Founded
- 2015
- Headquarters
- USA
What is Principle?
Principle is a ui ux design tool from Principle. Principle is a macOS app for designing animated and interactive user interfaces, popular for micro-interactions and motion design.
Principle uses one-time pricing with a 14-day free trial. From $129 once.
It's best suited to motion-designers, ux-pros and runs on Mac.
Standout strengths include smooth motion design, one-time purchase, sketch and figma import. Worth weighing: mac only, niche feature set.
Principle pricing
Pros
- Smooth motion design
- One-time purchase
- Sketch and Figma import
Cons
- Mac only
- Niche feature set
Principle vs alternatives
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Frequently asked questions
What is Principle?
Principle is a macOS app for designing animated and interactive user interfaces, popular for micro-interactions and motion design.
How much does Principle cost?
Principle is one-time-priced. Paid plans start at $129 once.
Does Principle have a free trial?
Yes — Principle offers a 14-day free trial.
What platforms does Principle support?
Principle is available on Mac.