Build screens that push beyond React Native's standard rendering
We create custom-rendered experiences for cases where standard React Native rendering cannot meet your requirements: pixel-perfect consistency, 3D graphics, or frame-perfect animations.
When do you need custom rendering instead of standard React Native?
Most apps work great with React Native's default renderer. But some experiences need more, and trying to force them into standard components leads to poor performance and endless workarounds.
Performance requirements
Some screens need guaranteed 60fps with complex animations, large datasets, or real-time graphics.
Performance requirements
Some screens need guaranteed 60fps with complex animations, large datasets, or real-time graphics.
Pixel-perfect consistency
When you need identical rendering across all platforms, down to the pixel.
Pixel-perfect consistency
When you need identical rendering across all platforms, down to the pixel.
3D and advanced graphics
Games, data visualizations, collaborative canvases, and AR/VR experiences need specialized renderers.
3D and advanced graphics
Games, data visualizations, collaborative canvases, and AR/VR experiences need specialized renderers.
Custom-rendered screens that integrate seamlessly with your React Native app
High-performance custom views exposed as type-safe React components, ready to use alongside your existing code.
Technical assessment first
We evaluate whether custom rendering is truly needed or if other techniques can solve your problem more simply.
Renderer integration
We integrate WebGPU, Skia, Filament, or your own renderer into your React Native project.
Type-safe React components
Your custom screen exposed as an npm package that works like any other React Native component.
Cross-platform support
Same high-performance rendering on iOS, Android, and web where the underlying renderer supports it.
Documentation and handover
Implementation strategy, usage guides, and technology documentation so your team can maintain the solution.
Performance-first delivery
Architecture choices focused on stability, frame consistency, and maintainability in production.
Profile React Native Internals with Tracy
This guide shows how to trace React Native internals with Tracy to find bottlenecks that app-level profilers often miss.
- Analyze thread activity and lock contention in detail.
- Identify frame-time hotspots before changing architecture.
- Use trace data to guide renderer and performance decisions.
Build custom high-performance screens for React Native
Assess your rendering needs
We evaluate whether custom rendering is the right approach or if simpler techniques can achieve your goals.
Integrate high-performance renderers
We integrate WebGPU, Skia, Filament, or your custom renderer into your React Native project.
Build specialized experiences
3D scenes, infinite zoomable canvases, frame-perfect animations, and game-like interfaces within React Native.
Need rendering performance that standard React Native cannot deliver?
Why leading companies work with Callstack
Meta Official Partners
We are official Meta partner for React Native, co-organizers of React Conf and hosts of React Universe Conf.
Working at scale
We know how to make React Native work at enterprise scale, both technically and organizationally.
React Native Core Contributors
We don’t just use React Native to build cross-platform apps, we help shape it for millions of developers.
Team at scale
We’re a team of 200+ engineers ready to start fast and scale with your needs.
Enterprise-friendly
We hold ISO certifications and follow strict security standards to make onboarding smooth and compliant.
Wide range of services
As a partner for your full application lifecycle, we offer a full range of services around React and React Native.
FAQs
Custom rendering raises questions about when it is needed and how it integrates. Here are answers to the ones we hear most.
We start with an assessment. If standard React Native can solve your problem, we will tell you and save you complexity.
WebGPU, Skia, Filament, and others. We can also integrate your existing custom renderer.
Yes. Our custom rendering integrations are bridgeless and new architecture-compatible.
Absolutely. Your custom screen appears as a standard React component and integrates seamlessly.
If the underlying renderer supports web, such as WebGPU or Skia, we can deliver web alongside mobile.
Yes. We have shipped React Native experiences on Vision Pro and continue to push platform boundaries.
Need rendering performance that standard React Native cannot deliver?
We build custom high-performance screens using WebGPU, Skia, Filament, or your own renderer, integrated seamlessly into your React Native app.
We’ve helped dozens of teams go cross-platform without rewriting everything. Let's see how we can help you.
