Hire React Native experts for your next project
Work with Core Contributors and engineers experienced in high-scale React Native apps to move faster, avoid pitfalls, and build with confidence.
Why you should use React Native to build your application?
React Native enables you to build native apps for multiple platforms using JavaScript and React. It integrates tightly with native code, supports platform-specific components, and scales from MVPs to production-grade apps.
Faster time to market
Deliver features to iOS and Android at once by sharing most of your code, reducing coordination overhead and accelerating your release cycles.
Faster time to market
Deliver features to iOS and Android at once by sharing most of your code, reducing coordination overhead and accelerating your release cycles.
Lower total cost
Reuse infrastructure, business logic, and tooling across platforms, cutting down on duplicate work and minimizing long-term maintenance effort.
Lower total cost
Reuse infrastructure, business logic, and tooling across platforms, cutting down on duplicate work and minimizing long-term maintenance effort.
Use React
Use the React model to build declarative, component-based UIs—backed by native rendering, real device APIs, and full access to platform capabilities.
Use React
Use the React model to build declarative, component-based UIs—backed by native rendering, real device APIs, and full access to platform capabilities.
Shipping single React Native application to 10+ platforms for a leading worldwide TV brand
A single React Native application delivered to over 10 platforms for a leading global TV brand. The shared foundation unified development across devices and enabled faster expansion to emerging platforms ahead of the competition.
80%
Code reuse across platforms
10+
Platforms
What to watch out for when growing a React Native codebase?
React Native helps teams move fast—but scaling a codebase across platforms introduces tradeoffs. From upgrade hurdles to uneven platform polish, these are common challenges we help teams solve.
Stuck on old version
React Native evolves quickly, but upgrading can be challenging—especially with outdated libraries, custom forks, or native integrations.
Not shipping fast enough
React Native reduces overhead, but without proper tooling and practices, teams can still get bogged down by manual work across platforms.
Could share more code
React Native enables shared logic, but without care, teams either underuse it—or overshare and compromise platform-specific UX.
Android support
React Native is cross-platform, but iOS-first habits or iOS-focused libraries often leave Android experiences behind.
Getting last 10% polished
React Native helps teams move fast, but small issues—like layout shifts, animation glitches, or accessibility gaps—often surface late.
Regressions
With shared UI and business logic, regressions in one platform can affect others—unless caught early with proper testing or CI.
Master the art of building performant React Native applications
React Native is evolving, and so are its performance challenges. The Ultimate Guide to React Native Optimization gives you the latest and most effective battle-tested strategies to make your app faster, more efficient, and more scalable.
- Updated techniques for React Native’s New Architecture (Fabric, TurboModules, JSI)
- Advanced profiling and debugging methods using the latest tools
- Practical real-world optimizations from top React Native teams
Hands-on engineering support for React Native teams
Hit the deadlines on time with our experts on board
We can jump into your team mid-project and help you unblock tech decisions, speed up delivery, and make sure the architecture holds up post-launch.
Build cross-platform React Native application with all best practices included
Set up a codebase that scales with your team and users, from modular architecture and scalable navigation to CI/CD and testing.
Release your React Native application on a new platform
Want to add Android to an iOS-only app? Or launch on visionOS or web? We’ll extend your codebase with platform-specific support that feels native.
Pair-program with your team to improve their knowledge while shipping faster
We work hands-on with your developers, pairing on features and architecture while transferring knowledge that sticks beyond our engagement.
Solve any technical challenge and immediately unblock your team
Whether it’s a critical bug, architectural decision, or performance bottleneck, we’ll help your team investigate, resolve, and move forward without delay—backed by deep React Native expertise.
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
Teams building with React Native often face tough questions—about code sharing, scaling, platform-specific behavior, or getting unstuck mid-project. Here’s how we typically support teams in the thick of delivery.
Yes. We frequently embed with existing teams at any stage of the project—whether you're launching, scaling, or stabilizing an app.
We pair program, review architecture, and take ownership of high-impact tasks—while supporting your team’s decision-making and knowledge growth.
Yes. We help identify bottlenecks in process, code, or roles—and work with you to refactor, unblock, or redistribute ownership across the team.
We help strike the right balance between code sharing and platform-specific behavior—so you can move faster without compromising UX.
We’re used to joining active codebases quickly and productively—most teams see impact within the first week.
Definitely. We focus on the overlooked details—layout bugs, accessibility gaps, inconsistent animations, and device-specific issues that delay launches.
Need help with React Native?
We can join your team and help you ship faster—whether you need architecture support, extra engineering capacity, or help scaling React Native across platforms.
