React Native app development
React Native lets a small team ship a single codebase to both the App Store and Google Play without the jank it is unfairly known for. We build production React Native apps and operate one ourselves, so we know exactly where the framework needs native help and where it does not.
Start a conversationWhat's included
- Single TypeScript codebase shipping to iOS and Android
- 60fps performance on mid-range Android, not just flagship iPhones
- Native modules for HealthKit, Apple Watch, camera and other platform features
- Offline-first data with background sync
- Fastlane + EAS Build CI/CD to TestFlight and Play internal tracks
- Crash and performance monitoring wired in from day one
Performance treated as a habit, not a final-week firefight
Most React Native jank comes from a handful of avoidable mistakes, not the framework. We use FlashList for every scrolling collection, run animations and gestures on the native thread with Reanimated, memoise expensive components, and benchmark on a three-year-old Android device rather than the newest iPhone. If it is smooth there, it is smooth everywhere.
Native where it earns its place
React Native gives roughly 95% shared code; the other 5% — HealthKit, live Apple Watch sessions, platform-specific sheets — we write as native modules. You get the cost and speed of a shared codebase without the compromises in the places users actually feel.
Frequently asked
Is React Native good enough for a production app?
Yes, for the vast majority of consumer and B2B apps. Our own product, UltraFit360, is React Native, live on both stores with a 4.8★ rating. The framework is fast enough; the jank people complain about comes from avoidable list and animation mistakes, which we engineer around from the start.
Should I choose React Native or fully native?
Choose fully native only when your app is dominated by heavy platform-specific graphics or hardware work. For almost everything else — including fitness, health and most SaaS apps — React Native ships faster, costs less and keeps feature parity tighter across iOS and Android.
Can you take over an existing React Native codebase?
Yes. We can audit an existing RN app, fix performance and stability issues, and take over ongoing development — common when a previous team left an app that ships but does not last.
Let's scope it.
A two-week fixed-scope diagnostic tells you the full cost and plan before you commit. Tell us what you're building.