React Native Development Services
React Native development services cover building, releasing and maintaining iOS and Android apps from a single codebase, so you ship to both platforms at once instead of funding two native teams. We design, build and support production React Native apps using Expo and TypeScript, from first release through ongoing updates.
Most businesses do not need two separate mobile teams. React Native lets one codebase serve iOS and Android while keeping native performance, native navigation patterns, and full access to device APIs like camera, push notifications, biometrics and background location.
We build apps that are meant to last past launch: typed end to end with TypeScript, structured so features can be added without rewrites, and wired to a release pipeline so you can push updates without waiting days for review on every change.
What's Included
Included in every React Native Apps engagement.
Cross-platform iOS & Android app
One React Native codebase producing native builds for both platforms, with platform-specific behaviour where it genuinely matters.
App store submission
Store listings, screenshots, signing, and the review process handled through to a live release on the App Store and Google Play.
Offline-first data layer
Local caching and sync so the app stays usable on poor connections and reconciles cleanly when the device comes back online.
Push notifications & deep links
Segmented push notifications and deep links that open the right screen, so re-engagement campaigns actually work.
Over-the-air updates
Expo OTA updates so copy fixes and bug patches reach users in minutes without a full store review cycle.
Analytics & crash reporting
Event tracking and crash monitoring wired in from day one, so you can see real usage instead of guessing.
How It Works
- 1
Scope & architecture
We map the screens, the data model and the integrations, then agree what ships in v1 and what is deliberately deferred.
- 2
Design & prototype
A clickable build of the core flows within the first weeks, so you are reacting to a real app rather than a document.
- 3
Build in increments
Feature-by-feature delivery with builds you can install and test on your own device throughout, not just at the end.
- 4
Release & support
Store submission, monitoring, and a support window to handle whatever real users surface after launch.
Maintenance and support after launch
A React Native app is not finished at store approval. iOS and Android ship new OS versions every year, Expo and React Native release new SDK versions, and libraries get deprecated. Left alone, an app drifts until the next store requirement or OS update breaks a build.
We offer maintenance and support for apps we built and for apps built by someone else. The scope and terms are agreed per project, because a small utility app and a payments app need very different attention.
- OS and SDK upgrades: Expo SDK and React Native version bumps, plus the iOS and Android changes that come with them.
- Dependency health: replacing abandoned libraries and clearing security advisories.
- Crash and error triage using the monitoring already wired into the app (Sentry or equivalent).
- Store housekeeping: re-submissions, new privacy declarations, review rejections.
- Small feature work and fixes between larger releases.
Taking over or rescuing an existing React Native app
Many projects arrive half-built, with a previous developer gone or a build that no longer compiles. We start with a short audit of the dependency tree, the architecture, the build and release pipeline and the state of the tests, then give you a written summary: what is sound, what to fix first, and what to leave alone.
You then decide whether to continue on the existing code or rebuild specific parts. Rewrites are recommended only when the audit shows that patching would cost more.
What we have shipped in React Native
F4goals is a task manager built and operated by the same developer, live on the web at f4goals.com and on Google Play from one Expo and React Native codebase. It has an offline-first sync layer with a durable outbox, two native Android home-screen widgets written in Kotlin and wired in through an Expo config plugin, and releases that go out through EAS builds.
It is a young product and we do not quote install numbers. It shows the engineering you would get on your own app: shared code across platforms, native modules where React Native alone is not enough, and a repeatable release pipeline.
How pricing works
There is no public price list. Each project is scoped on its own and quoted after a short conversation about what you are building. The main drivers are the number of screens and user roles, backend and integrations, offline and real-time requirements, payments, whether designs already exist, and which platforms you need at launch.
You receive a written scope, timeline and quote before any work starts, at no cost. Maintenance is discussed per project in the same way.
Freelance developer or agency?
An agency can staff several roles at once, which helps when a project needs a separate designer, QA team and project manager. A senior freelance developer is a better fit when the work is a focused product build or ongoing maintenance, because you deal directly with the person writing the code and there is no account layer between you and the engineering.
If your project needs a larger team, we will say so during scoping rather than stretch to fit.
Case studies
F4goals
A task manager with nested subtasks and partial progress, on web and Android
Technologies We Use
- React Native
- Expo
- TypeScript
- Zustand
- React Navigation
- Firebase
- Supabase
Frequently Asked Questions
How long does it take to build a React Native app?
A focused MVP with authentication, a few core screens and one or two integrations typically takes 6 to 10 weeks. Larger apps with payments, real-time features or complex offline behaviour usually run 3 to 5 months. You get a fixed scope and estimate before any work starts.
Is React Native good enough compared to native development?
For the large majority of apps, yes. React Native renders genuine native UI components, so lists, navigation and animations feel native. Fully native still wins for heavy 3D, intensive real-time video processing or deep platform-specific hardware work, and we will tell you honestly if your project is one of those cases.
Can you take over an existing React Native project?
Yes. We regularly pick up existing codebases. The first step is a short audit covering dependency health, architecture and build pipeline, followed by a written summary of what is worth fixing, what to leave alone, and what it will cost.
Do you handle App Store and Google Play submission?
Yes. Signing, store listings, screenshots, privacy declarations and the review process are all included, and we handle rejections and resubmissions if reviewers push back.
How much does a React Native app cost?
There is no public price list because the cost depends on scope: screens, backend and integrations, offline or real-time needs, payments and whether designs exist. Each project is scoped and quoted individually after a short conversation, and you get a written scope, timeline and quote before any work starts.
Do you offer React Native maintenance and support after launch?
Yes, for apps we built and for existing apps. That covers OS and Expo SDK upgrades, dependency updates, crash triage, store re-submissions and small features. Scope and terms are agreed per project.
Can you upgrade an old React Native app to a current version?
Usually, yes. We begin with an audit of dependencies and native code, then upgrade in steps that keep the app buildable after each one. Apps with many abandoned native libraries take longer, and the audit will tell you before you commit.
Do you use Expo or bare React Native?
Expo by default, with config plugins and custom native modules where a feature needs them. F4goals is an Expo app that includes two native Kotlin Android widgets, so using Expo does not rule out native code. The bare workflow is used only when a project has a clear reason for it.
Can the same codebase also ship as a website?
Often, yes. F4goals ships to the web and to Android from one Expo codebase. Whether it is the right call depends on the app: complex marketing or SEO-driven sites are usually better as a separate React or Next.js build.
What do you need from me to get started?
A short description of what the app should do and who uses it. Designs, a backend or an existing codebase help but are not required; if you have none of them, we can scope those pieces as part of the project.
Ready to start your project?
Tell us what you're building and you'll get a clear scope, timeline and fixed quote — at no cost.