Optimized battery usage and UX of a boating community app
App of the Day on App Store in 2025
99%
Crash-free rate achieved in just three months
React Native Performance Optimization Services
React Native Performance Audits & Consulting
As founding members of the React Foundation and core contributors to React Native and Expo, we truly know the framework you're optimizing for. We'll tell you what's slowing your app down – and fix it.
We don't just consult on React Native. We build it.
Most performance consultants work only from the outside: reading docs, running profilers, and making guesses. Our engineers have been shaping React Native itself and building the open-source libraries used by most production apps. That means we know what is happening under the hood, not just what the tools report.
-
2,500+ pull requests to the Expo ecosystem
We stay close to the framework internals by contributing where teams actually ship React Native code.
-
React Foundation founding member
We help shape the future of the framework alongside Meta, Vercel, and Expo.
-
2.5M+ weekly npm downloads
Each of our leading React Native libraries is part of the ecosystem's production infrastructure.
-
10+ years contributing to React Native core and infrastructure
We have built deep expertise by helping maintain the tools and libraries teams depend on every day.
Audit & consulting modes
We can diagnose the problem, fix it directly in your codebase, or work side by side with your team to transfer the knowledge.
Performance audit
We profile your app on real devices, instrument your codebase, and deliver a prioritized report on startup time, rerender cycles, bundle modes, memory pressure, battery behavior, and more. You'll know exactly what to fix and in what order. Typical turnaround: 2–4 weeks.
Hands-on remediation
We find the issues and fix them directly in your codebase. Battery drain from background rerenders, problems with gesture handling, or crashes tied to native module threading – we've seen all of it, we know where to look, and we know how to fix it in days, not weeks.
Expert help
We pair your engineers with our senior developers for a few days, bringing our tooling and our knowledge of the framework internals so your team understands why the issues appeared and how to prevent them from coming back.
We fix the problems standard profiling often misses
SeaPeople came to us with stability and performance issues that needed more than surface-level debugging. We tracked down the hidden rerender loop behind CPU spikes and battery drain, improved the app's crash-free rate, and helped the team move faster on both platforms.
Trusted by teams shipping serious React Native products
When performance issues start hurting real users, teams come to us for direct help from engineers who know the framework from the inside.
“Being so well connected in the React Native community and supporting key open source projects, we know Software Mansion is always up on the latest developments.”
“The effort to make our app fast on both platforms was beyond our skillset. The team at SM jumped in, onboarded very quickly, and made an impact right away.”
Best React Native debugging tools in 2025
Read a practical guide by the engineer who built Radon IDE and see how we think about profiling setup, the new DevTools stack, and catching the issues standard tooling misses.
Contact Ready to fix your app?
You don't need a fully diagnosed problem to reach out. Tell us what you're seeing – slow screens, battery complaints, crashes that only appear on certain devices – and we'll help you find out what's actually going on. Want to work with us? We start with a short call. No slides, no pitch. Just a direct conversation about your app and whether we can help.