01 React Native

React Native development company for products built on JavaScript

Tailwebs is a React Native development company in Bengaluru that designs, builds and launches apps for iOS and Android from one JavaScript or TypeScript codebase. Founded in 2015, we have delivered 200+ projects. React Native suits products that already run on React or JavaScript, want to share logic with their web app and need a native feel on both platforms.

Talk to us about your React Native appWhat can be shared with your web app
Illustration: blocks from one tray building matching layouts on a laptop and two phones

02 When it fits

When React Native fits

React Native fits when your web product or team already works in React or TypeScript, and the mobile app should follow the same rules as the web app.

Project traits

  1. Your web product or team already uses React or TypeScript. For example, a SaaS company adding a mobile companion app to its web product, so customers can do on the phone what they already do in the browser.
  2. Web and mobile share the same business rules. For example, a marketplace where buyers, sellers and admins see the same pricing and permissions on every screen, whether they open the website or the app.
  3. You release small changes often. For example, a content or community app whose screens change from week to week, where one codebase means each change is made once for iOS and Android.
  4. Your in-house JavaScript developers will maintain the app later. The app is written in the language the people who already know your web app read every day.
  5. Native SDKs you depend on can be wrapped as native modules. For example, payments, Bluetooth devices or maps, each reached from JavaScript through a small native layer for each platform.

03 Shared code

React Native cross-platform app development: sharing code with your React web app

Reuse the parts that hold your business rules, and let each platform keep a UI that suits it. In one repository, the web app and the mobile app can draw on the same shared packages.

One repositoryHow it can be set up

Shared packages

Written once and used by both apps, so a pricing rule or a validation check means the same thing on every screen.

  • TypeScript types
  • The API client
  • Validation rules
  • Business logic
  • Design tokens

Your React web app

Keeps its own interface, because a page in a browser is used differently from a screen on a phone:

  • Web UI components
  • Routing between pages
  • Browser-only code

The React Native app

Keeps its own interface, built from native components, so it looks and behaves like an iPhone or Android app:

  • Native UI components
  • Navigation between screens
  • Platform-specific code for iOS and Android

Shared packages carry version numbers

Each app moves to a new version of a shared package when it is ready, so a change made for the web app cannot break the mobile app on its next build.

What goes into a shared package can be decided package by package: a rule that must match everywhere goes in, and anything only one app uses stays with that app.

Building the web product as well? See web app development.

04 Setup

How we set up React Native app development projects

Two questions are settled at setup: whether your own team can maintain the app later, and whether a fix can reach users without waiting for a store review.

  1. 01

    Project setup

    We start on Expo’s managed tooling unless the app needs native code it can’t support, and say which in discovery.

  2. 02

    Type safety

    TypeScript throughout, so a changed API shows up as an error while the code is being written, not as a crash after release.

  3. 03

    Navigation and animation

    React Navigation for routing and Reanimated for animation, both widely used and actively maintained.

  4. 04

    Native modules where needed

    An SDK with no maintained React Native library is wrapped as a native module, written once for iOS and once for Android behind one JavaScript interface, so the rest of the app calls it like any other package.

  5. 05

    Profiling

    Slow screens are profiled with the Hermes engine’s tools, on real devices.

  6. 06

    One release pipeline

    A release pipeline that builds both stores.

  7. 07

    Over-the-air updates

    Small JavaScript fixes can reach users without a store release, within Apple’s and Google’s rules; native changes still go through review.

We run our own React Native app: Kaipo, a conversational AI app on iOS and Android with long-term memory, voice notes, images, 23 languages including Hinglish, and subscriptions.

Want the whole app planned, with its backend, admin and design? See mobile app development.

05 Upgrades

React Native app development services for existing apps: upgrades and the New Architecture

Yes: we upgrade React Native apps that are several versions behind. An app that has fallen behind gets harder to release with each store update, and each skipped version adds to the work.

  1. Audit

    Every native dependency is checked for New Architecture support, and any that block it are replaced. A takeover starts here.

  2. Upgrade in steps

    React Native is upgraded one version at a time.

  3. Switch it on

    The New Architecture is switched on once the app passes on both platforms.

The New Architecture is React Native's rebuilt core. Each native library an app depends on has to support it, so the libraries an app uses decide how far an upgrade can go before the New Architecture is switched on. A library that is no longer maintained is the usual blocker.

An app several versions behind usually carries libraries that have since been renamed, replaced or abandoned, so the size of the gap, more than the size of the app, sets most of the effort.

Running an older React Native app? Tell us which version it is on.

Hiring instead?

Already have a React Native app and need hands? Hire React Native developers

06 FAQ

Questions about React Native app development.

Is React Native a good choice for my app?
React Native is a good choice when your product or team already works in React or JavaScript and you want one codebase for iOS and Android with native components.
How much do React Native app development companies charge in India?
In our draft cost bands, a cross-platform MVP costs ₹8–15 lakh and a mid-complexity app with a web admin and APIs ₹15–30 lakh. What moves the figure is in our app development cost guide, and every package is on our pricing page.
Can we share code between our React web app and a React Native app?
Yes. Types, the API client, validation and business logic live in shared packages, while each platform keeps its own UI.
Can you move our React Native app to the New Architecture?
Yes: we audit native dependencies, upgrade React Native in steps and switch the New Architecture on once every dependency supports it.
Can you push fixes without a new App Store or Google Play release?
Yes, small JavaScript fixes can be sent over the air within the stores’ rules, while native changes still go through review.