I will build a cross-platform mobile app with React Native

Need one app that runs on both iPhone and Android without paying to build it twice? I design and build production-ready cross-platform mobile apps in React Native — one codebase, two native apps, shipped to the App Store and Google Play.

What you get

I build complete, installable mobile apps with React Native so a single codebase compiles to both iOS and Android. You receive working software, not a slide deck. Concretely:

• A React Native app (current stable React Native / Expo where it fits your needs) targeting iOS and Android from one shared codebase.
• Screen-by-screen UI built from your designs, wireframes, or a written brief — navigation, lists, forms, detail views, tab bars, modals, and the flows that connect them.
• API and backend integration — I wire your app to your existing REST or GraphQL endpoints, or to a backend-as-a-service (Firebase, Supabase) if you don't have one yet.
• State management set up properly (Redux Toolkit, Zustand, or React Context, chosen to match the app's complexity) so the app stays maintainable as it grows.
• Authentication flows when you need them — email/password, social sign-in, or token-based sessions against your API.
• Device features you ask for: camera, photo library, push notifications, geolocation/maps, local storage, deep links, and biometric login.
• Clean, commented source code delivered to your Git repository, structured into reusable components so future developers (or you) can extend it.
• Build configuration for both platforms — app icon, splash screen, bundle identifiers, and signed builds ready for TestFlight and Google Play internal testing.
• A short handover covering how to run, build, and deploy the project.

This is a hands-on development service. I write the code, test it on real devices and simulators, and deliver a working app — scope agreed in writing before we start.

Plans

	Basic	Standard	Premium
Ideal for	A focused MVP or single-feature app	A multi-screen app with backend & auth	A full-featured product with integrations
Screens built	Up to ~4 core screens	Up to ~10 screens	Larger, scoped per spec
Platforms	iOS + Android	iOS + Android	iOS + Android
API integration	One simple API / mock data	Your REST/GraphQL API	Multiple APIs / custom backend
Authentication	—	Email or social login	Advanced auth + roles
Push notifications	—	Basic push setup	Full push + deep linking
Device features	One basic feature	Camera/location/storage as needed	Advanced native features
State management	Lightweight setup	Structured store	Scalable architecture
Store submission	Build files provided	TestFlight + Play internal builds	Full store submission support
Source code + handover	Included	Included	Included + walkthrough call
Revisions	Scoped revisions	More revisions	Generous revisions

Every plan delivers one shared React Native codebase that produces both an iOS and an Android app. Exact screen counts, features, and timelines are confirmed in writing before any code is written, so you know precisely what's included.

How it works

1. Message me first. Tell me what the app should do, who it's for, and whether you have designs, an existing backend, or developer accounts. I'll confirm the build is realistic before you order.
2. Scope and plan. We agree on the exact screens, features, integrations, and platforms in writing. I send a short build plan and a milestone breakdown.
3. You place the order and share assets — designs (Figma/images), API docs, brand colors, logos, and any existing repository access.
4. I build in milestones. I develop the app in stages and share progress builds you can install on your own phone, so you see real screens early and steer the direction.
5. You review and request revisions. I refine UI, fix issues, and adjust flows against the agreed scope within your plan's revision allowance.
6. Testing and polish. I test on iOS and Android — simulators plus real devices — checking navigation, forms, edge cases, and performance.
7. Delivery and handover. You get the full source code in your repo, signed builds, and instructions to run and deploy. On Premium I support the actual App Store and Play Store submission.

Why choose this

• One codebase, two apps. React Native means your iOS and Android apps share the same logic and UI, so you're not paying for and maintaining two separate native projects.
• Real builds you can hold. You install progress versions on your own device throughout — no waiting until the end to discover the app feels wrong.
• You own everything. Source code is delivered to your repository, written in clean, commented, component-based structure that any React Native developer can pick up.
• Honest scope. I confirm what's buildable before you order and put the feature list in writing, so there are no surprise "that wasn't included" moments.
• Native where it counts. Camera, push notifications, maps, biometrics, and deep links are implemented with proper native modules — not faked.
• Store-ready output. Icons, splash screens, bundle IDs, and signed builds are configured for TestFlight and Google Play, not left as homework.

Who it's for / use cases

• Founders validating an MVP who need a real, installable app on both platforms to show users or investors without doubling the budget.
• Startups turning a Figma prototype into a shippable product with login, a backend, and push notifications.
• Small businesses wanting a branded customer app — bookings, loyalty, catalog, or account access — on iOS and Android.
• Agencies and product teams needing an extra React Native developer to build a client app to spec and hand back clean source.
• Existing web products that need a companion mobile app talking to the same API.
• Solo creators who have a clear app idea and designs but need an experienced developer to actually build it.

FAQ

Q: Does one codebase really produce both iOS and Android apps? Yes. React Native compiles a single shared codebase into native apps for both platforms. Occasionally a feature needs small platform-specific tweaks, which I handle within the same project.

Q: I don't have designs yet — can you still build it? Yes. I can build from a written brief or simple wireframes using clean, standard mobile UI. For a heavily custom look, finished designs (for example Figma) produce the best result, and we'll agree on the visual scope up front.

Q: Do I need my own Apple and Google developer accounts? To publish to the App Store or Google Play, yes — those accounts must be in your name so you own the listings. I configure the builds and, on Premium, support the submission process. You can also test via TestFlight and Play internal tracks first.

Q: Will I get the source code? Always. The complete, commented source is delivered to your Git repository on every plan. You own it and can extend or hand it to any developer later.

Q: Can you connect the app to my existing backend? Yes. I integrate with your REST or GraphQL API, or with Firebase/Supabase. If you have no backend, we'll scope a lightweight one as part of the plan.

Q: How do you handle changes after I see a build? Each plan includes a revision allowance for refining the agreed features. Changes within scope are part of the build; genuinely new features beyond the agreed spec are scoped as an add-on so the timeline stays fair.

Q: Which features can you add — push, camera, maps, login? All of those. Push notifications, camera and photo library, geolocation and maps, biometric and social login, deep links, and local storage are supported. Tell me your must-haves and I'll confirm them in the scope.

Q: What do you need from me to start? A clear description of the app, any designs or wireframes, your API docs or backend details, brand assets, and repository access. The more you share up front, the faster the build moves.