--- title: "Migrate to React Native with AI | Callstack Brownfield" description: "Migrate to React Native with AI. Consolidate iOS, Android, web, and TV into one codebase. Stop maintaining separate platforms—start in days, not months." url: https://www.callstack.com/brownfield updated: 2026-11-09T15:52:34.251Z --- # Migrate to React Native with AI | Callstack Brownfield Migrate to React Native with AI. Consolidate iOS, Android, web, and TV into one codebase. Stop maintaining separate platforms—start in days, not months. ## Migrate with AI to React Native. Stop maintaining separate codebases for every platform. AI-assisted migration to React Native consolidates iOS, Android, web, and TV into one. In days, not months. [Talk to an expert about your stack](https://www.callstack.com/contact) · [Explore Brownfield insights](https://www.callstack.com/insights/brownfield-react-native) Faster. ## Why React Native matters here ### React Native is AI-native React Native closes the gap between your mobile apps and your AI stack. One codebase across iOS, Android, web, and TV, on the same JS runtime as your models, agents, and tooling. ### Share patterns with web Reuse React skills, patterns, and up to 80% components between web and mobile. Align your product teams around one ecosystem instead of splitting them by platform. ### Extend to TV and new surfaces Once React Native is part of your stack, it becomes easier to reach TV and other platforms without starting again. Each new surface builds on the same core. Trusted by leading engineering teams ![](https://www.callstack.com/assets/69a807c72354059bed6020a7_zalando.svg) Use React Native to accelerate feature delivery across a large e-commerce. [Watch webinar](https://www.callstack.com/events/scaling-react-native-at-zalando-lessons-from-brownfield-migration) ![](https://www.callstack.com/assets/69a807c72f2b348646860be5_shopify.svg) Use React Native across mobile and web aligned teams to boost velocity. [Listen episode](https://www.callstack.com/podcasts/lessons-from-shopifys-migration-to-react-native-with-mustafa-ali) ![](https://www.callstack.com/assets/69a807c8864ed8c9f6844052_microsoft.svg) Use React Native in select Office and Teams surfaces. [Watch full talk](https://www.callstack.com/podcasts/react-native-at-microsoft-ep-16) ![](https://www.callstack.com/assets/69a807c8661edfc94342175b_Hello-Fresh.svg) Use React Native to streamline mobile across multiple markets and teams. [Read case study](https://www.callstack.com/case-studies/training-hellofresh-engineers-to-build-production-apps-with-react-native) Brownfield ## Build on what’s shipped Most teams do not adopt React Native by rebuilding everything. AI-assisted migration lets you add React Native into your existing app, so you keep what works while introducing a shared experience layer. first steps ## How teams start with React Native 1. **Start with one feature** Introduce React Native inside a small, contained part of your app to validate the approach and build confidence. 2. **Rebuild a full area of the app** Once validated, expand React Native to an entire domain such as onboarding, account or search to increase impact. 3. **Move toward a shared core** As more of the app adopts React Native, the shared layer grows and native becomes a stable shell around it. 4. **New product or brand in React Native** With a strong shared core, new apps or brands can start directly in React Native and reuse large parts of the system. Is your stack ready for React Native? ### How many platforms (iOS, Android, Web, TV) do you actively support? - Just one (e.g., iOS only) - Two (iOS & Android) - Three or more (Mobile + Web/TV) ### How often do you currently ship updates to the app stores? - Monthly or slower - Every two weeks (sprint based) - Weekly or faster ### How are your engineering teams currently organized? - Separate iOS and Android teams - Cross-functional feature teams (with native specialists) - Unified product teams ### Does your company currently use React on the web? - Yes, extensively - No, we use a different stack (Vue, Angular, etc.) - We don't have a web app ### Ship to multiple platforms in the time it used to take one Score 10+ Your stack is primed for React Native. You're running the kind of setup — multiple targets, fast cadence, and likely some React familiarity — where a shared codebase not only reduces toil, but fundamentally changes what your team can ship per sprint. The 50% velocity gain isn't a best-case number here; it's close to your baseline. ### Meaningful gains, low migration risk Score 7+ React Native would consolidate the coordination overhead you're already managing. The wins are real — a unified CI pipeline, shared component logic, and one PR to ship across platforms. A phased migration starting with a greenfield feature is the lowest-risk entry point. ### Viable path, with the right scoping Score 0+ React Native isn't an obvious slam-dunk for your setup, but it's not the wrong call either. The framework is mature, the hiring pool is large, and long-term maintainability is genuinely better with one codebase. [Book free consultation](https://www.callstack.com/contact) ### How React Native works for your organization? - **AI-Native Compatibility**: React Native runs on the same JS runtime as your AI models, agents, and tooling - your apps and AI stack stay naturally aligned without extra workarounds. - **Massive Code Reusability Across Platforms**: Teams can reuse React skills, patterns, and up to 80% of components between web and mobile. This brings all product teams into one unified ecosystem. - **Easy Expansion to New Platforms**: Once React Native is part of your stack, reaching new platforms like TV or future surfaces becomes significantly easier. You're never starting from scratch again. first steps ## Plan your AI-assisted migration with us We can deliver a working proof of concept in just 2 weeks, so you can see React Native running inside your product before committing to a large migration. [Schedule a Brownfield strategy session](https://www.callstack.com/contact) Insights ## Learn more about Brownfield Discover strategies, best practices, and real-world examples of successful brownfield migrations that allow teams to leverage React Native while preserving existing native investments. [View all](https://www.callstack.com/insights/brownfield-react-native) - [Announcing: React Native Brownfield v3 with Expo Config Plugin](https://www.callstack.com/blog/announcing-react-native-brownfield-v3-with-expo-config-plugin) - [Introducing Brownie: Type-Safe Shared State for React Native Brownfield Apps](https://www.callstack.com/blog/introducing-brownie-type-safe-shared-state-for-react-native-brownfield-apps)