Module 02 · Mobile Apps

Mobile App Development with React Native

With React Native we build your iOS and Android app from a single codebase and have it share the same API infrastructure as your website, delivering data consistency and development efficiency together.

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In depth
01

One Codebase, Two Stores, a Shared API Layer

On React Native projects the iOS and Android interfaces are produced from the same JavaScript/TypeScript codebase; the code branches only where platform-specific behaviour is needed, and the rest of the logic stays shared.

The real value of this structure shows when the mobile app consumes the same API as your website: the product catalogue, user accounts, orders or booking logic are defined in one place on the server, and the web and mobile clients pull that logic from the same endpoints. Stock levels, price updates and user permissions stay consistent and in step across every channel. The sharing isn't limited to the interface layer either; validation rules and some business logic functions can be shared between web and mobile too.

02

React Native or Flutter: Why Do We Lean Towards React Native?

Flutter also releases to two platforms from one codebase, but it uses the Dart language and its own render engine — which means a team using React and JavaScript on the web can't reuse that knowledge on mobile.

That's our reason for choosing React Native: the same team building your web interface can carry the component logic straight across to mobile. Mature libraries in the npm ecosystem solve common needs like authentication or payments with ready-made modules. Because the architecture binds directly to native components, the interface behaves close to the platform's own. On projects running web and mobile at the same time, the code and knowledge sharing React Native gives you comes to the fore. A single codebase is still subject to the store rules; the App Store review guidelines make no exceptions.

01 One codebase One codebase: two branches splitting from a JavaScript / TypeScript code window to iOS and Android — illustrative graphic At the top, a code window whose title bar reads “JavaScript / TypeScript”, with six lines of code inside. The stem leaving the bottom of the window splits in two; each branch ends in a phone frame, with “iOS” under the left one and “Android” under the right. At the bottom, a shared band both phones rest on: “Shared API layer”. In the animation the code lines come in one by one, then the branches are drawn. JavaScript / TypeScript iOS Android Shared API layer
02 The platform-specific point The platform-specific point: a branch point on the stem running down from the shared codebase, with two side arms — illustrative graphic At the top, a box reading “shared codebase”. The main stem running down from it is drawn first; on that stem sits a diamond-shaped branch point containing a small fork icon. Two short arms leaving it to the left and right end in boxes reading “iOS module” and “Android module”, each with a dashed note underneath reading “native where needed”. The main stem carries straight on down to a label reading “Shared code”, with a note at the bottom reading “the rest of the logic stays shared”. shared codebase iOS module if needed native Android module if needed native Shared code the rest of the logic stays shared
03 Why React Native A side-by-side comparison of the React Native and Flutter cards — illustrative graphic Two equally sized cards side by side. On the left, “React Native”: a language badge reading “JavaScript / TypeScript”, with three feature rows below — one codebase, npm ecosystem, native components. On the right, “Flutter”: a language badge reading “Dart”, with three rows below — one codebase, its own render engine, release to two platforms. The left card has an accent border; the right card has a neutral border but its text is just as bright as the left card's, with no negative mark on it. At the bottom, a single line: “the same team and component logic as the web”. React Native or Flutter React Native JavaScript / TypeScript Flutter Dart one codebase one codebase npm ecosystem its own render engine native components release to two platforms the efficiency of shared code and knowledge
Illustrative graphic. It draws the route the page describes: from a single JavaScript/TypeScript codebase out to iOS and Android with a shared API layer, the branch at the point where platform-specific behaviour is needed and the native module that comes in only there, and finally React Native and Flutter standing side by side. The boxes are an example interface drawing, not taken from a real app; the code lines are represented by bars so as not to invent names. The two cards at the third stop are the same size, and the Flutter points are the page's own wording — the comparison isn't a score or a measurement, it's a statement of why we choose what we choose. No brand or platform logo is used; the badges are text only.

For the current price and timeline band , look at the pricing section on the Mobile Apps page — you can settle the band for your scope in two minutes.

Let's map the scope togetherFive steps, two minutes. The timeline and price range appear on screen.

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FAQs

Frequently asked questions: app development with React Native

Does an app built with React Native lag behind a native app on performance?

Because the interface components bind to the platform's own native components, there's no noticeable difference in everyday use. In the rare cases needing heavy graphics or complex animation, that module is moved to native code and the performance gap is closed.

Why choose React Native rather than Flutter?

Flutter also offers a single codebase, but it uses the Dart language, which doesn't overlap with your web team's React knowledge. With React Native the same team can share component logic, so the project stays more efficient.

What's the advantage of using the same API as our website?

Data such as products, users and orders is defined in one place on the server; web and mobile call the same endpoints. That removes the job of keeping two separate data sources in step — an update on one side shows automatically on the other.

How does a React Native app get submitted to both stores?

The shared codebase is put through platform-specific build steps to produce separate iOS and Android packages, and an automated release pipeline gets them ready for submission.

On which projects does React Native fall short and native become necessary?

On projects with heavy sensor processing or highly platform-specific graphics requirements, that module may need writing in native code; the rest of the app can stay on React Native.

Can an app built with React Native be moved to native later?

Yes — when the architecture is built in modules, screens or features can be moved to native code one at a time. Because the move can be gradual, the parts that need it can be shifted to native over time without interrupting the existing app.

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The detail

If you'd like to look before deciding

  1. 01

    The Native Bridge and Third-Party Modules

    For device-specific capabilities such as the camera, biometric login or push notifications, React Native reaches the platform's APIs through a native bridge layer. Community modules cover most scenarios; where a bespoke hardware integration is needed, a small native module is brought in.

  2. 02

    State Management and a Scalable Project Architecture

    As an app grows, managing the flow of data between screens becomes critical. We set up a layered folder structure with type safety through TypeScript, along with central state management; API calls and error handling are gathered in a separate service layer.

  3. 03

    CI/CD and the Store Release Pipeline

    We set up a CI/CD pipeline that automates the build, signing and store upload steps; every release goes through the same checks, and parallel submission to both stores becomes routine.

LIVE LOOP

Open Up to Both Platforms from One Codebase

Let's build your iOS and Android app on a React Native architecture, on the same API as your website, in a structure that's consistent and manageable. For a quote and process detail matched to your project scope, have a look at the pricing section or talk to our team directly.

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