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// Service · React Native development

React Native
Development

One codebase. Two stores. Native performance.

React Native is how we build most of our apps: one team, one codebase for iOS and Android, and Expo/EAS for fast releases. It is how we built Tory (two apps plus real-time dispatch) and Dividandy (trading tournaments with a live leaderboard).

Prices and FAQ

// In one paragraph

React Native development means building iOS and Android apps from a single TypeScript codebase with real native components, not a WebView. At OneZero it is the default stack for consumer and business apps: an MVP in 8–12 weeks, Expo and EAS for builds and distribution, a Node.js/NestJS backend, and Sentry for crash monitoring. Native Swift/Kotlin is reserved for products that need everything the device offers.

OneZero is a software development company based in Tel Aviv, Israel, operating since 2019 and incorporated as OneZero Software Engineering Ltd. in May 2021. We design and build mobile apps (React Native, Expo, native iOS and Android), web and SaaS platforms, and AI-powered products end to end for startups and established companies.

Best for

  • Startups that need to be in both stores with one team and an MVP budget
  • Apps with real-time, maps or payments: ordering, mobility, fintech, social games
  • Companies adding a mobile companion to an existing web product without duplicating teams

// 01 · What we build

React Native apps that run in production

  • On-demand and mobility apps

    A client app, a driver/provider app and a real-time dispatch server with maps and live ETA. Like Tory.

  • Fintech and real-time games

    Live market data, leaderboards, wallet and KYC, push notifications and deep links. Like Dividandy.

  • B2C and SaaS apps

    A mobile companion to a web product, or a new mobile-first product with a full backend.

  • Internal and field apps

    Field tools, offline-first, ERP/CRM connectivity, distribution through the stores or MDM.

// 02 · Expo and EAS

Expo, EAS Build and OTA updates

Expo is the tooling layer on top of React Native: maintained native libraries, Expo Router for navigation, and EAS (Expo Application Services) for cloud builds and store submission. We use EAS Build and EAS Submit as the app's CI/CD.

OTA updates ship JavaScript fixes without waiting for store review. On projects like Tory that is the difference between a fix within an hour and a fix within two days.

How Tory runs on Expo

// 03 · The stack

The technology around React Native

Everything here is in use on our projects, not on a keyword list.

  • App

    • React Native
    • Expo
    • TypeScript
    • Expo Router

  • Build & release

    • EAS Build
    • EAS Submit
    • OTA Updates
    • TestFlight
    • Fastlane

  • Backend

    • Node.js
    • NestJS
    • PostgreSQL
    • PostGIS
    • Redis

  • Real-time

    • Socket.IO
    • WebSockets

  • Payments

    • Stripe
    • Tranzilla

  • Push & deep links

    • FCM
    • APNs
    • OneSignal

  • Monitoring

    • Sentry
    • Crashlytics
    • Datadog

  • Cloud

    • AWS
    • CloudFront
    • S3

// 04 · How it works

From idea to the stores in 8–12 weeks

  1. STEP 1

    Discovery and UX

    Screens, flows, data model and what is in the MVP and what is not. One to two weeks.

  2. STEP 2

    Two-week sprints

    Every sprint ends with a live EAS build you can install and try.

  3. STEP 3

    Backend and real-time

    API, database, auth and WebSockets are built alongside the app.

  4. STEP 4

    Testing on real devices

    iPhone and Android, multiple OS versions and resolutions, Sentry on from day one.

  5. STEP 5

    Launch and maintenance

    App Store and Google Play submission, OTA for fast fixes, ongoing OS updates.

// 05 · Pricing

What a React Native app costs

Realistic ranges for Israel in 2026. A precise quote after one discovery meeting.

  • iOS + Android MVP₪80K–150K (~$22K–40K)8–12 weeks
  • Medium app with backend₪150K–300K (~$40K–80K)4–6 months
  • App with AI and real-time₪400K–1.2M (~$110K–330K)6–12 months

USD figures are an approximate conversion at ~3.65 ILS/USD, rounded.

// 06 · React Native, Flutter or native?

When React Native is the right call

React Native wins when time to market, a single team and the JavaScript/TypeScript ecosystem you already have matter most. Flutter excels at custom graphics and pixel-identical visuals. Native Swift/Kotlin fits when you need the most from the hardware, heavy graphics or deep OS integration.

Full comparison: React Native vs Flutter

// FAQ

Frequently asked questions

  • 01.How much does a React Native app cost in Israel?

    An iOS and Android MVP — ₪80K–150K (~$22K–40K). A medium app with a backend — ₪150K–300K (~$40K–80K). An app with AI and real-time — ₪400K–1.2M. Price is driven by screens, integrations and real-time, not by the framework.

  • 02.How long does a React Native MVP take?

    8–12 weeks for most MVPs, including a basic backend and store submission. A medium app — 4 to 6 months.

  • 03.React Native or Flutter?

    For most startups — React Native, thanks to TypeScript, Expo and the ecosystem. Flutter when fully custom graphics matter most. The full breakdown is on our comparison page.

  • 04.Is React Native fast enough for real-time?

    Yes. Tory runs live dispatch and ETA over WebSockets, and Dividandy runs live leaderboards and market data — both in React Native.

  • 05.What is Expo and why do you use it?

    Expo is a tooling layer on top of React Native: maintained native libraries, EAS for cloud builds and submission, and OTA updates for fixes without store review. It cuts releases from days to hours.

  • 06.Do you build the backend too?

    Yes. Node.js/NestJS, PostgreSQL, Redis, WebSockets and AWS — the same team that builds the app.

  • 07.Who owns the code and the store accounts?

    You do. The code lives in your Git, the Apple Developer and Google Play accounts are in your name, and the EAS project is in your account.

Last reviewed:

Proof and related reading

// Let's talk

Have an app to build?

A 30-minute intro call. No strings attached. We will tell you straight whether React Native is the right call.