Hire a React Native Developer Who Actually Ships
Week One Labs is a senior React Native developer for hire, building cross-platform iOS and Android apps from a single codebase in 14-day sprints. No 4-month roadmaps, no agency overhead. Fixed price, store submission included, and clean TypeScript you own from Day 1 — so your mobile app ships, performs, and stays maintainable after launch.
Who this is for
Founders shipping a mobile-first product, SaaS teams that need a companion app, and operators turning a web product into a native experience. Most mobile MVPs ship in 14 to 28 days at a fixed price between $8K and $25K — both stores, from one React Native codebase. Larger products get phased into focused sprints.
What a React Native developer actually delivers
Cross-platform MVPs
One React Native codebase that ships to both the App Store and Google Play — auth, navigation, the core feature loop, and a polished UI on both platforms.
SaaS companion apps
A native mobile app on top of your existing product, sharing the same backend and API so web and mobile stay in sync without a second team.
Subscription & IAP apps
In-app purchases and subscriptions wired up with RevenueCat or native IAP, with paywalls, restore flows, and receipt validation done right.
AI-first mobile apps
LLM chat, AI assistants, and voice features built into the app, backed by a TypeScript service with cost guardrails and observability.
Push & realtime features
Push notifications, deep links, live data, and offline handling — the things that make a mobile app feel native instead of a wrapped website.
Shopify-connected mobile
Mobile experiences that talk to a Shopify backend or your own commerce API — the same studio that builds your Shopify app can ship the React Native client.
The 14-day React Native sprint
Scope freezes on Day 1. From app spec to a build on your phone to store submission, in focused sprints — not quarterly plans.
Scoping call & app spec
We map your mobile idea to a buildable Sprint 1 scope. One core user journey, one platform strategy (almost always both stores from one codebase), one success metric. I write the spec, you approve it, scope is frozen before code is written.
Sprint 1 — working app on a device
The core loop end-to-end: navigation, auth, API integration, and a real UI running on both iOS and Android. By Day 14 you have a build you can install on your phone and demo to design partners and investors.
Sprint 2 — store-ready hardening
Push notifications, payments or subscriptions (RevenueCat or native IAP), offline handling, deep links, and the second feature your users keep asking for — then the App Store and Google Play submission.
Launch & ongoing iteration
Optional retainer for OTA updates, new features, and OS-version maintenance. Or take the codebase, store assets, and docs in-house and run it yourself. Your call.
React Native tech stack — what I actually ship
Boring, proven infrastructure. Expo and EAS for builds, TypeScript end-to-end, and no homegrown frameworks that will be abandoned in a year.
Both stores, half the cost, one team
Building separate Swift and Kotlin apps means two codebases, two release pipelines, and two sets of bugs — for a product that looks identical to your users. React Native ships iOS and Android from one TypeScript codebase, so you pay once to build, once to maintain, and ship features to both platforms on the same day. Native modules cover the rare hardware-specific cases. For most startup and SaaS apps, that is the difference between a 14-day MVP and a 4-month one.
Pricing — fixed scope, fixed fee
No hourly billing. You get a number before kickoff and that's the number on the invoice. Estimate your own build with the calculators below.
App prototype
A focused, demo-ready build of the core flow on both platforms — perfect for design partners, fundraising, or validating the idea on real devices.
- ✓ Core user journey end-to-end
- ✓ iOS + Android from one codebase
- ✓ Installable build (TestFlight + APK)
- ✓ Clean, typed React Native code
Mobile MVP
A full cross-platform product — auth, the core loop, push, payments, and App Store + Google Play submission. The default engagement.
- ✓ Production app on both stores
- ✓ Auth, push, payments/subscriptions
- ✓ Backend + API integration
- ✓ Store submission handled for you
Sprint 2 / scale-up
After Sprint 1 — add a second feature, layer in AI, wire up analytics and offline support, or harden for a larger launch.
- ✓ Second core feature
- ✓ AI / LLM features (optional)
- ✓ Offline + deep linking
- ✓ Performance + crash hardening
Want to sanity-check the number? Try the MVP Cost Calculator and the App Maintenance Cost Calculator.
Hire me when…
- ✓ You need a mobile app shipped in weeks, not quarters
- ✓ You want one codebase serving both iOS and Android
- ✓ You want a senior dev who ships, not a junior contractor learning on your budget
- ✓ You want fixed price and a hard scope freeze
- ✓ You want clean code and store assets you can run in-house
This is not the right fit if…
- ✓ You want the cheapest possible hourly contractor
- ✓ You need a graphics-heavy 3D game or AR-first experience
- ✓ Your app depends on deep, platform-specific native SDKs end-to-end
- ✓ Your scope is undefined and you want to "explore" without a deliverable
- ✓ You expect unlimited revisions inside a flat fee
Ready to ship your mobile app?
Book a free 30-minute scoping call. Bring the idea — leave with a concrete sprint plan, a fixed quote, and a realistic timeline for both app stores.
Book your scoping call →Or compare frameworks first with React Native vs Flutter and estimate with the MVP Cost Calculator.
Frequently asked questions
How much does it cost to hire a React Native developer?+
Freelance React Native developers commonly bill $50–$150/hr, and agencies often quote $40,000–$120,000+ for a full cross-platform app. A focused mobile MVP at Week One Labs ships for $8,000–$25,000 fixed price across one or two 14-day sprints. That includes both iOS and Android from a single codebase, navigation, auth, API integration, push notifications, and a store-ready build. You own the repo from Day 1.
How long does it take to build a React Native app?+
A working cross-platform MVP — onboarding, auth, core feature loop, and a polished UI on both iOS and Android — is buildable in 14 to 28 days when scope is frozen. Sprint 1 ships the core app you can demo on a real device. Sprint 2 hardens the edges: push notifications, payments or subscriptions, offline handling, and the App Store / Google Play submission. Most "4-month mobile app" timelines are scope problems, not technical ones.
Why React Native instead of native iOS and Android?+
One codebase ships to both platforms, which roughly halves the build cost and the maintenance burden versus writing Swift and Kotlin apps separately. For the vast majority of startup and SaaS mobile products — anything that is fundamentally screens, data, auth, and API calls — React Native is indistinguishable from native to your users and far cheaper to evolve. Native modules cover the rare cases that need platform-specific hardware. If you want a deeper breakdown, the React Native vs Flutter tool on this site walks through the trade-offs.
Do you handle App Store and Google Play submission?+
Yes. Submission is part of the engagement — app icons, splash screens, store listings, screenshots, privacy declarations, and the actual build upload through EAS to both App Store Connect and Google Play Console. You get a published app, not a folder of source code you then have to figure out how to ship. If you already have developer accounts, we use yours so the app is published under your company from Day 1.
Can you add AI features to my mobile app?+
Yes — AI is a core specialization. LLM chat, AI assistants, voice features, and RAG over your data all ship as standard React Native sprint deliverables, wired to a TypeScript backend with cost guardrails and observability. If your mobile product is AI-first, the same studio builds the model integration and the app around it. See the AI app developer page for how that side of the work is structured.
Do I own the code you write?+
Yes. 100% of the code, infrastructure-as-code, store assets, and documentation is yours from Day 1 — clean repo, README, build runbook, and onboarding notes for the next engineer who touches it. There is no Week One Labs "platform" you depend on and no proprietary wrapper. You can take it in-house or hand it to another team whenever you want.
Will you sign an NDA before the scoping call?+
Yes. Mutual NDAs are standard before we get into specifics. The first 30-minute call is a fit check — pricing, timeline, and high-level architecture — and almost never requires one. Once we move to a detailed scoping doc, an NDA is signed before I see any proprietary data, customer lists, or unreleased product detail.
Hire a React Native developer who ships — not an outsourced "mobile team"
Direct communication, fixed price, and a track record of shipping cross-platform apps to both stores. Book a 30-minute scoping call and get a concrete plan.
Book your scoping call →Get a free mobile app scope + quote
Describe the app in one line. I will send back a React Native sprint scope, store-submission plan, and a fixed price — within one business day.
- ✓ A concrete sprint scope
- ✓ A fixed price range
- ✓ A reply within one business day
Prefer to talk? Book a 30-minute scoping call →
I know which AI tools are worth your time.
I build with AI every single day. I will send you what actually works, what is overhyped, and what you should be paying attention to next. No fluff, just signal.
Get the AI signal. Drop your email below.
No spam. Just useful AI intel for builders.
Free app planning tools
Estimate cost, timeline, and framework fit before you commit.
Related: Hire an MVP developer · Hire an AI app developer · Hire a Shopify app developer · React Native vs Flutter