React Native App Development Company

In the United States, roughly $45,000 to $70,000 for an MVP with one core loop on both stores, $70,000 to $130,000 for a mid-complexity product with custom interface work and several integrations, and $130,000 upward for enterprise builds carrying compliance and legacy integration. Native module count and integration complexity move these more than screen count does.

Eight to twelve weeks for an MVP, three to five months for a mid-complexity product, six to twelve months for enterprise builds with compliance and legacy integration. All three assume the device matrix is agreed at kickoff rather than discovered during QA, which is the single most common cause of overrun.

Four things, in order. Native modules, because each device feature without a maintained library becomes Swift and Kotlin work plus its own test cycle. Integration count and the state of the systems you are integrating with. Device matrix width, which multiplies QA rather than adding to it. And compliance scope, which shapes architecture and cannot be added late.

For most product categories, yes. Hermes improves startup and memory, and the New Architecture removes the bridge serialization cost. Where it will not match native is sustained heavy computation, complex real-time graphics and tight-frame-budget AR. We set startup, frame rate and memory targets in discovery and measure against them rather than assessing performance by feel.

Profiling with Hermes, Flipper and the React Native profiler to find where frames are actually lost, animation moved onto the native thread with Reanimated, list virtualization for long collections, and image handling sized properly rather than scaled at render. Memory is measured across a long session, not at launch, because list and image leaks only appear under real use.

Across a long session on physical devices, not at launch on an emulator. Leaks in list rendering, image caching and event listeners only appear under sustained use, so the test drives real navigation loops while memory is sampled. Baselines are set in discovery alongside the startup and frame rate targets, and a release candidate that regresses against them does not ship.

Yes, and those three plus outdated React Native are the migrations we run most. Every one starts with an audit covering dependency health, native customization, test coverage, crash data and the build pipeline, followed by a target architecture. The audit sometimes concludes that consolidating two native codebases is not worth it, and we say so.

Yes, and it should. React Native screens embed inside your existing native shell, so migration runs screen by screen or module by module with the current app live throughout. Users keep a working product, each stage has a rollback path, and you can stop at any point with something coherent shipped rather than a half-finished rewrite.

With a parity matrix written before migration starts, listing every screen and behavior the current app delivers. That matrix becomes the acceptance gate instead of a subjective judgment about whether the new version feels complete. Performance benchmarks for startup, frame rate and memory are set against the existing app rather than an abstract target.

You do, from the first commit. The repository sits in your organization, and signing keys, provisioning profiles and both store accounts are in your company’s name rather than ours. IP transfers as work is delivered, not at the end of the engagement. If a vendor holds your Play Console or App Store Connect account, your ability to ship an update depends on that relationship continuing.

Yes, all three. Pipelines through Fastlane or EAS Build with automated signing and distribution to TestFlight and Play tracks. Crash reporting through Sentry alongside store vitals. Over-the-air updates through EAS Update or CodePush, governed by a written policy defining what may ship outside store review and what may not, with rollback available.

There is no single best React Native app development company, and any list claiming one is ranking by marketing budget. The right one for you is the one whose engagement model matches your binding constraint, whether that is native depth, delivery scale, compliance or budget. Most React Native app development companies recommend the framework every time, which tells you the recommendation is commercial rather than technical.

Four things, in this order. Who writes their native modules, because outsourced native work is where these projects stall in month four. Whether the device matrix is written before the estimate rather than discovered during QA. Who will own the repository, signing keys and store accounts. And whether they can name one project where they recommended against React Native.

Yes. UX research and Figma prototyping, React Native engineering, native modules, backend and API work, QA on physical devices, store release and post-launch support all run in one team with a US-based solution architect leading. Splitting design, mobile and backend across vendors is where integration problems become nobody’s responsibility.

No secrets or keys in the JavaScript layer, because a shipped bundle can be inspected and Hermes bytecode is not encryption. Tokens in iOS Keychain and Android Keystore rather than AsyncStorage, which is unencrypted. OAuth 2.0 with JWT, TLS 1.3 in transit, AES-256 at rest, certificate pinning where justified. Authentication and device storage are tested explicitly, and release candidates are scanned against OWASP MASVS.

Authentication is tested as a threat model, not a happy path: token expiry and refresh, session invalidation on logout, behavior on a rooted or jailbroken device, and biometric fallback. Device storage is inspected on a real handset to confirm no token, key or personal data sits outside iOS Keychain or Android Keystore. Both run on every release candidate alongside the OWASP MASVS scan.

Yes. We build HIPAA-aware healthcare and PCI DSS-aware fintech products, with compliance scoped in discovery rather than retrofitted before launch. That means audit-ready logging from the first sprint, a documented data model, role-based access and biometric authentication where the product needs it. AppVerticals is ISO 27001 certified.

Yes, and one codebase still means two submissions. We prepare both listings including screenshots, descriptions, privacy manifests and data safety declarations, handle signing, and manage staged rollout through TestFlight and Google Play testing tracks. A pre-submission audit against current Apple and Google requirements runs first, which is how 96% of our apps pass review on first submission.