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Try the Uniwind Pro Demo

See the C++ engine, ShadowTree updates, and native transitions in action. Clone the demo app (Expo SDK 54 / RN 0.83.5) and run it on your iOS simulator. No account required.

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Overview

Uniwind comes in two versions: a free MIT-licensed version and a Pro version powered by the Unistyles C++ engine. The free version gives you full Tailwind CSS v4 bindings, Expo Go support, and strong performance for most apps. Pro adds a native C++ layer that unlocks capabilities the JavaScript runtime cannot provide: zero re-render ShadowTree updates, Reanimated 4 className animations, native-thread theme transitions, and priority support from the core team.

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Feature Comparison

FeatureFree VersionPro Version
Tailwind CSS Support✅ Full support✅ Full support
Theme System✅ Light, Dark, Custom✅ Light, Dark, Custom
Platform Selectors✅ iOS, Android, Web✅ iOS, Android, Web
CSS Parser✅ Included✅ Included
Expo Go Compatible✅ Yes❌ Requires dev client
Performance⚡ Optimized JS engine🚀 Native C++ engine
EngineJavaScript-basedC++ with Unistyles engine
Shadow Tree UpdatesStandard re-renders✨ Zero re-renders
Animation support❌ No translation layer, you need to use style property✨ Reanimated 4 support via className
Native Updates❌ Built in RN hooks✨ All platform specific values from C++
Props Automapping✅ All RN components✅ All RN components
LicenseMIT & CommercialCommercial
SupportCommunity✨ Priority support
Project LimitUnlimitedUnlimited

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Free Version

The free version ships with full Tailwind CSS v4 bindings, Expo Go support, and everything you need to build and ship production React Native apps.

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What You Get

Full Tailwind Bindings

Complete Tailwind CSS v4 support with all utility classes, variants, and customization options.

Solid Performance

Optimized JavaScript engine with build-time style processing. Ships real apps to production today.

Expo Go Support

Test your app instantly with Expo Go. No need for custom dev clients during development.

Complete Theming

Built-in support for color schemes, orientation, and responsive breakpoints.

MIT License

Use it in any project: personal, commercial, open source. No restrictions.

RN Style Props Automapping

All React Native components work seamlessly with className props.

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Pro Version

Pro adds a native C++ layer that gives you capabilities the JavaScript runtime cannot provide.

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What You Get Extra

C++ Engine via Unistyles

Styles are processed in native code. Your UI updates bypass re-renders in JavaScript.

Zero Re-renders

ShadowTree updates inject styles without waking React. 23 props update on the native thread with no re-render cycle.

Reanimated 4 via className

Drive animations and transitions from Tailwind classNames. No manual useAnimatedStyle wiring.

Native Theme Transitions

Fade, blur, slide, or circle-reveal between themes on the native thread. No flicker, no JS overhead.

Native Safe Area Insets

Safe area values, font scale, and platform metrics come from C++ directly. No React hooks, no re-renders.

Priority Support

Direct access to the core team. Faster response times and hands-on help with integration issues.

View All Pro Features

Explore detailed documentation for all Pro features

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Upgrade to Pro When You

  • Build screens with feeds, lists, or live-updating data where re-renders create visible jank
  • Need frame-perfect theme switching (dark mode toggles, white-label brand theming)
  • Want to animate with Reanimated 4 using className instead of useAnimatedStyle
  • Ship a white-label product where multiple themes must transition seamlessly
  • Need direct access to the core team for production support
Note: The Pro version requires a custom development build (EAS Build or bare React Native) and is not compatible with Expo Go.

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Benchmarks

Uniwind Pro delivers significantly better performance compared to the free version and other React Native styling solutions. We maintain comprehensive benchmarks to demonstrate real-world performance improvements.

View Benchmarks

Explore detailed performance comparisons and benchmark results
The benchmark repository includes source code and results comparing Uniwind Free, Uniwind Pro, and other popular styling libraries.

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Supporting Uniwind Development

We believe in giving back to the community, which is why Uniwind’s core features are free and MIT-licensed. If Uniwind saves you time and helps you build better apps, consider supporting us:

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Why Support Us?

  • 🛠️ Active Development: We’re constantly improving Uniwind with new features and bug fixes
  • 📚 Quality Documentation: Comprehensive guides and examples to help you succeed
  • 💬 Community Support: Active community and GitHub discussions
  • 🚀 Future Innovation: Your support enables us to push the boundaries of React Native styling

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Ways to Support

Upgrade to Pro

Get the best performance and priority support

Sponsor on GitHub

Support development with a monthly contribution

Share Your Story

Tell others how Uniwind helped your project

Contribute

Help improve Uniwind with code contributions

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Making the Choice

Both versions share the same Tailwind CSS v4 API. The upgrade path is seamless: swap the package, keep your code. The free version is production-ready and ships real apps today. Pro unlocks a different runtime: styles processed in C++, ShadowTree updates that skip React, and native-thread transitions. If your app does not need those capabilities yet, the free version is the right starting point.

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Frequently Asked Questions

Yes. We have a public demo app you can clone and run on your iOS simulator right now. It demonstrates the C++ engine, ShadowTree updates, and native theme transitions with zero setup. No account or purchase required.
Yes. The API is identical, so your existing code works without changes. Install the Pro package, configure your license, and you are done. See the Migration Guide for step-by-step instructions.
Yes. The free version is MIT licensed. Use it in unlimited projects, commercial or personal. No restrictions.
Direct access to the core team with faster response times and priority issue resolution. We help with integration issues, architecture questions, and production debugging.
Yes. Your Pro license covers unlimited projects within your organization.
No. Pro includes native C++ modules that require a custom development build. It works with EAS Build, bare React Native, and any CI pipeline that produces a dev client.

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Get Started

Start Building

Set up Uniwind in under 5 minutes

See Pro Features

Pricing, demos, and the full feature breakdown