# React Native app development

> Cross-platform iOS and Android apps from one React Native codebase with Expo and TypeScript: design, native modules, App Store and Google Play publishing.

- URL: https://franamadis.com/services/react-native-app-development/
- Language: en
- Last updated: 2026-11-13
- Versión en español: https://franamadis.com/es/servicios/desarrollo-apps-react-native/
- Publisher: FAMDEV OÜ (Fran Amadis) · info@franamadis.com

[Services](https://franamadis.com/services/)

# React Native app development for iOS and Android

One TypeScript codebase, two native apps. React Native with Expo lets you launch on the App Store and Google Play at the same time, with native performance, one team and one budget.

Tell us about your project

See projects

## What you get

- Cross-platform architecture in React Native and TypeScript
- Expo with EAS Build and over-the-air updates
- Native modules in Swift and Kotlin when the product needs them
- Offline data, push notifications and deep links
- Subscriptions and payments with StoreKit and Google Play Billing
- Publishing on the App Store and Google Play
- Shared logic with your React or Next.js web app

## Ideal for

### Launch on both stores

Reach iPhone and Android users from day one without paying for two separate apps.

### Products with a web app

Share types, business logic and API clients with a React or Next.js front end.

### Fast iteration

Ship fixes and copy changes with over-the-air updates, without waiting for store review.

When is native the better choice? Apps with heavy 3D, advanced real-time audio or very deep hardware integration usually work better as native apps. AuraHz, for example, is native Swift because of its real-time audio engine. We will tell you honestly which option fits.

Process

## How we work

01

### Choose the approach

We check that React Native fits your product, or recommend native when it does not.

02

### Design once

One design system that respects iOS and Android conventions.

03

### Build and test

Internal builds for both platforms on TestFlight and Google Play testing tracks.

04

### Publish and update

Store reviews, launch, and OTA updates for quick fixes.

### Technology

- React Native
- Expo
- EAS Build & Update
- TypeScript
- React Navigation
- Reanimated
- Push notifications
- App Store Connect
- Google Play Console

## Related work

iOS app

### [AddiCheck](https://franamadis.com/addicheck/)

On the App Store

Scan a product’s barcode and see which food additives it contains, with clear notes on health risks and allergens.

[Discover AddiCheck](https://franamadis.com/addicheck/)[AddiCheck on the App Store](https://apps.apple.com/app/addicheck/id6475221792)

iOS app

### [AuraHz](https://franamadis.com/aurahz/)

On the App Store

Binaural-beat sessions with living visuals and natural soundscapes for sleep, focus, calm and meditation.

[Discover AuraHz](https://franamadis.com/aurahz/)[AuraHz on the App Store](https://apps.apple.com/app/aurahz/id6777391663)

Web platform

### Passenger care platform for airlines

In production · used by hundreds of thousands of passengers worldwide

Web platform that organises care for passengers affected by flight cancellations and overbooking: hotel rooms, meals and transport, digital vouchers, and dedicated portals for airlines and hotels, with real-time operations and billing.

## Frequently asked questions

### Is React Native as fast as a native app?

For most apps (lists, forms, maps, chat, payments) users cannot tell the difference. For intensive graphics or real-time audio, a native app is still the better choice.

### Can my React Native app share code with my website?

Yes. Business logic, data types and API clients written in TypeScript can be shared with a React or Next.js web app, which reduces bugs and development time.

### Expo or bare React Native?

We usually start with Expo: faster builds, over-the-air updates and easier upgrades. When a feature needs custom native code we add it with native modules without leaving Expo.

### Can you migrate an existing app to React Native?

Yes. We can rewrite it screen by screen or start with the parts that change most often, keeping the current app live during the migration.

### Further reading

- [How to publish an app on the App Store and Google Play: a practical checklist](https://franamadis.com/blog/publish-app-store-google-play/)
- [React Native vs native (Swift and Kotlin): how to choose for your app](https://franamadis.com/blog/react-native-vs-native/)

Contact

## Let’s talk

Tell us what you want to build, who it is for and when you need it. We reply within one or two working days, in English or Spanish.

info@franamadis.com

**FAMDEV OÜ** · Registry code 16917226 · VAT EE102705986
Sepapaja tn 6, 15551 Tallinn, Estonia

[LinkedIn](https://www.linkedin.com/in/franamadis/) · [Instagram](https://www.instagram.com/franamadis/) · [App Store](https://apps.apple.com/us/developer/francisco-amadis-mendez/id1723676763)