Home›Services›Offshore React Native Development
Offshore React Native App Development Company
As an offshore React Native app development company, we build iOS and Android apps from a single TypeScript codebase, with dedicated engineering teams in India who work under your direction. Senior React Native engineers cost USD 4,100–4,900 a month, all-in. This page covers the questions experienced buyers ask: New Architecture readiness, native module strategy, Expo versus the bare workflow, over-the-air update policy, and what falling behind on React Native versions really costs. It also covers when React Native is the wrong choice. Tell us about your app to start.
New Architecture Readiness
React Native’s New Architecture replaced the old asynchronous bridge with JSI, the Fabric renderer and TurboModules. It has been the default for new projects since version 0.76, and the legacy architecture is being phased out of recent releases. For existing apps, that makes migration unavoidable rather than optional. For new apps, it means every third-party library you depend on must support the New Architecture. The sections below explain what this means in practice for an offshore React Native team that works as part of your offshore development center in india.
JSI and the End of the Bridge
JSI lets JavaScript call native code directly and synchronously, without serialising messages across a bridge. That removes the main bottleneck that made older React Native apps feel slow during heavy interactions.
The Fabric Renderer
Fabric renders the UI synchronously and supports React’s concurrent features. Apps gain smoother transitions and more predictable layout, but custom native views written for the old renderer must be updated.
TurboModules
TurboModules load native modules lazily and expose typed interfaces generated by Codegen. Startup gets faster, and type mismatches between JavaScript and native code are caught at build time. Both effects compound in large apps.
Library Compatibility Audit
Before migrating an app or starting a new one, the team audits every dependency for New Architecture support. Unmaintained libraries are replaced or forked, because one incompatible package can block an upgrade.
Migrating an Existing App
Migration typically takes two to six weeks, depending on how much custom native code the app has and how healthy its dependencies are. The team migrates behind a build flag, tests on real devices and releases in stages.
Native Module Strategy: When JavaScript Is Not Enough
Every serious React Native app eventually needs native code, whether for a payment SDK, a Bluetooth device or a platform feature without a maintained library. The question is not whether to write native modules but how to keep them maintainable. An offshore React Native team must include engineers who write Swift and Kotlin confidently, not only JavaScript. The approach below keeps native code small, typed and testable. Our dedicated developers include native specialists when needed.
Recognising the JavaScript Ceiling
Warning signs include frame drops during gestures, heavy computation blocking the UI, and SDKs that exist only natively. Profile first, because many slowdowns come from unnecessary re-renders rather than JavaScript itself.
The Expo Modules API
The Expo Modules API lets engineers write native modules in Swift and Kotlin with far less boilerplate. It works in both Expo and bare projects and fully supports the New Architecture.
Typed Interfaces With Codegen
Codegen generates the native interface from a TypeScript spec, so JavaScript and native code always agree on types. This prevents a class of runtime crashes that was common in older apps.
Keeping Native Code Small
Native modules should expose a narrow, well-documented interface, with the business logic kept in TypeScript. Smaller native layers mean fewer engineers need deep platform knowledge for everyday work. It also simplifies onboarding.
Native Screens When Needed
For a few performance-critical screens, such as a camera or map view, the team can build fully native screens and embed them in the React Native app without restructuring it.
Expo vs the Bare Workflow
Expo has evolved from a beginner toolkit into the framework that the React Native team itself recommends for new apps. Continuous native generation and development builds have removed most of the limits that once pushed teams to a bare workflow. The decision now turns on how much custom native configuration your app needs and how your build pipeline is set up. The table summarises the choice, and the sections below explain each factor.
| Factor | Expo (with prebuild) | Bare React Native |
|---|---|---|
| Setup time | Hours | Days |
| Custom native code | Supported through config plugins and Expo Modules | Full direct control |
| Build and submit | EAS Build and Submit, or your own CI | Your own CI and Fastlane |
| Over-the-air updates | EAS Update built in | Self-hosted or third-party service |
| Upgrades | Coordinated SDK releases | Manual, dependency by dependency |
| Best for | Most new apps | Apps with heavy or unusual native setup |
Why Most New Apps Start on Expo
Expo handles native project generation, build configuration and common modules, so engineers spend their time on features. New apps typically reach their first TestFlight build several days sooner. Upgrades are also simpler.
Config Plugins and Prebuild
Config plugins modify native projects during prebuild, so custom native settings live in code rather than in hand-edited Xcode or Gradle files. Upgrades then regenerate the native folders cleanly. Nothing is lost on upgrade.
When the Bare Workflow Still Makes Sense
Apps embedded into an existing native app, or with very unusual build requirements, may still suit a bare workflow. Even then, many Expo libraries remain fully usable. The team assesses this upfront.
Moving From Bare to Expo
Many older bare apps can adopt Expo incrementally, starting with Expo modules and development builds. The team assesses the migration effort during a discovery sprint. Migration then proceeds in small, reversible steps.
Build Infrastructure Ownership
Whichever workflow you choose, build pipelines, signing credentials and update channels should sit in accounts your company owns, not the vendor’s. That keeps you in control if you ever change teams.
Over-the-Air Updates: What the Stores Allow
Over-the-air (OTA) updates let a React Native app download new JavaScript without a store release, which is valuable for urgent fixes. They are also easy to misuse. Microsoft retired App Center, including its hosted CodePush service, in March 2025, so teams now use EAS Update or a self-hosted alternative. Apple and Google both allow OTA updates within limits, and staying inside those limits is a release policy decision, not only a technical one.
What Apple Permits
Apple allows downloaded interpreted code as long as it does not change the app’s primary purpose, add major features or bypass review. Bug fixes and small content changes are fine, but new features need review.
What Google Play Permits
Google Play allows JavaScript updates that run in the app’s own interpreter, but it forbids downloading executable native code. Updates must not change the app in ways that would violate Play policies.
Choosing an OTA Service
EAS Update is the default for Expo-based apps, while bare apps can self-host an update server. Either way, update channels and signing keys should belong to your company, not the development vendor.
Our OTA Release Policy
We use OTA only for bug fixes and copy changes, never for new features. Every update goes to an internal channel first, then rolls out gradually with one-click rollback if a problem appears.
Native Changes Still Need a Store Release
Any change to native code, permissions or dependencies with native parts requires a new store build. OTA cannot patch these changes, so plan releases with them in mind. The team flags them in planning.
Upgrade Cadence and the Cost of Falling Behind
React Native ships several minor releases a year, and only the most recent versions receive fixes. Apps that skip upgrades for a year or more face a compounding problem: incompatible libraries, builds that fail against new Xcode and Android SDKs, and security fixes they cannot install. The cost of catching up grows faster than the cost of staying current. The guidance below helps you treat upgrades as routine maintenance rather than emergency projects.
Recommended Upgrade Rhythm
Upgrade to each new minor release within two or three months, or at least twice a year. Small, regular upgrades take days, while skipping several versions can take weeks. Each upgrade is regression-tested.
What Falling Behind Costs
An app three or more versions behind often needs two to six weeks of upgrade work, plus regression testing. Store deadlines for new SDK targets can force that work at the worst possible time.
Dependency Hygiene
The team tracks every library’s maintenance status and replaces abandoned packages early. Fewer, well-maintained dependencies make every upgrade smaller, safer and easier to estimate. Each upgrade starts with a dependency report covering versions and risks.
Budgeting for Upgrades
Plan roughly one to two sprints a year for framework, iOS and Android upgrades. Our pricing packages include maintenance options that cover this recurring work. That keeps upgrade costs predictable year to year.
Inheriting an Outdated App
If you inherit an app that is several versions behind, the team starts with an audit of the version gap, dependencies and native code. It then delivers a staged upgrade plan with estimates, backed by our delivery guarantees.
When React Native Is the Wrong Call
React Native is an excellent choice for many apps and a genuinely poor one for some. Saying so plainly is part of choosing a framework responsibly, and it is why our recommendations carry weight when we do recommend it. In the cases below, we advise a different approach: native development, Flutter, or a hybrid with native screens. Our mobile app development services cover each of these options in full detail.
Graphics and Games
3D games, augmented reality and complex real-time animation need direct GPU access through Metal, Vulkan or a game engine. React Native adds a layer exactly where these apps need raw performance.
Mostly Native Functionality
If most of the app is Bluetooth, background processing or hardware integration, most of the code will be native anyway. A React Native shell adds complexity without saving much effort.
Pixel-Identical Custom Design
If the design must look identical on both platforms down to the pixel, Flutter’s own rendering engine is often a better fit than React Native’s native components. The Flutter page covers that trade-off.
No React Expertise to Leverage
React Native’s biggest advantage is sharing skills and code with React web teams, and without one that advantage disappears. If you do run a React web app, our web application development team can share logic with it.
One-Platform Apps
If nearly all your users are on one platform, a native app for that platform is usually simpler to build, test and maintain than a shared React Native codebase. Expand later if needed.
Frequently Asked Questions
It builds and maintains iOS and Android apps from one React Native codebase, using a dedicated team in another country, typically India. The team works in your repositories under your direction, writes native modules when needed, manages store releases and keeps the app current with React Native upgrades.
Offshore Development Center India
Operated by Taction Software. Trusted by 785+ global businesses.
20+ years experience · CMMI Level 3 · ISO 27001 · Clutch Most Trusted