Cross-Platform (Flutter / React Native)
One codebase, two platforms. I build cross-platform mobile apps using Flutter or React Native that deliver native-quality UX, performance, and store readiness. Whether you're shipping an MVP quickly or maintaining feature parity across iOS and Android, cross-platform means writing and testing each feature once instead of twice.
That includes end-to-end Flutter development: Dart and Flutter 3+ apps with clean architecture, strong state management, and release pipelines that keep shipping predictable.
My approach balances code reuse with platform-specific polish. I implement native navigation patterns, platform conventions (iOS HIG, Material Design), and custom native modules where needed for camera, permissions, or third-party SDKs.
What I Deliver
- Flutter or React Native builds with 80-95% shared code
- Platform-specific UI polish (iOS/Android conventions)
- Offline-first with local storage & sync
- Push notifications, deep links, universal links
- Native modules for platform-specific features
- CI/CD pipelines (TestFlight, Google Play)
- App Store/Play Store prep & launch support
Best For
- MVPs with tight timelines (4-8 weeks)
- Feature teams needing iOS/Android parity
- Budget-conscious projects that would otherwise need two native teams
- Web + mobile with shared logic (React Native)
- High-performance UIs (Flutter)
- Existing Flutter/React Native app improvements
Flutter vs React Native: Decision Matrix
| Factor | Flutter | React Native |
|---|---|---|
| Performance | Excellent (compiled to native) | Very good (New Architecture, Fabric/JSI) |
| UI Flexibility | Highly customizable widgets | Native components + custom |
| Language | Dart (easy to learn) | JavaScript/TypeScript |
| Web Support | Stable | React shared code (excellent) |
| Third-Party Libs | Growing ecosystem | Mature, extensive npm packages |
| Hot Reload | Sub-second | Fast (with Fast Refresh) |
| Best For | Custom animations, design systems | JS teams, web code sharing |
My Recommendation: Choose Flutter for high-performance UIs and custom animations. Choose React Native if your team knows JavaScript/React or needs web code sharing. Both deliver native-quality apps. For the longer trade-off, read Flutter vs React Native in 2026.
Flutter Development
Flutter compiles to native ARM code and draws its own UI, so one Dart codebase produces iOS and Android apps that look and behave the same. A Flutter build from me typically covers:
- State management: Riverpod, BLoC, or Provider over a clean, module-based architecture
- Custom UI: widgets, animations, and responsive layouts from a shared design system
- APIs: REST and GraphQL integration with caching
- Offline storage: SQLite, Hive, or Isar
- Push notifications and deep linking
- Firebase backends: Auth, Firestore, Cloud Functions
- Store deployment: App Store and Play Store releases via CI/CD
Good fits: startup MVPs that need both stores on a limited budget, e-commerce and content apps with rich branded UI, internal business tools, and products that may later add a web or desktop client. Budgeting a build? The Flutter app cost guide breaks down what drives the price. If the app needs LLM or on-device ML features, see AI integration for mobile apps.
Flutter vs Native: The Trade-offs
Where Flutter wins
- One codebase to build, test, and maintain
- Both platforms launch together, not in sequence
- Pixel-consistent UI from a shared design system
- Fixes and features reach every platform at once
What it costs
- New platform APIs need plugins or platform channels
- Native look and feel has to be built deliberately
- Larger app binary than a minimal native app
- An extra framework layer to keep up to date
When native iOS is the better call
- Deep platform APIs: widgets, Live Activities, HealthKit, background work
- Heavy integration with existing SwiftUI or UIKit code
- Apple-first products where iOS conventions matter most
The deciding question is how much of the app is shared product logic and custom UI versus platform-specific behaviour. I build native iOS as well, so the recommendation follows the product rather than the toolkit. See iOS app development.
When to Choose React Native
- Web and React teams: existing React skills carry straight over to mobile
- Shared logic: business logic reused across web and mobile, one language across the stack
- Fast iteration: Fast Refresh and the npm ecosystem shorten the MVP loop
- Integration-heavy apps: commerce, social, and real-time features with mature third-party libraries
Budgeting a build? See what a React Native app costs in 2026.
Expo (Managed) vs Bare Workflow
| Workflow | Use it when | Trade-off |
|---|---|---|
| Expo (managed) | Prototypes and apps covered by Expo's built-in modules (camera, location, notifications) | Less direct control over native project files |
| Bare | Custom native modules, specific native SDKs, advanced platform features | You own the Xcode and Gradle projects and their upgrades |
React Native Performance
- Hermes JavaScript engine for faster startup and lower memory use
- New Architecture (Fabric, JSI) to cut bridge overhead between JavaScript and native
- List virtualization with FlatList for long feeds
- Fewer re-renders via React.memo and useMemo
- Heavy work off the JS thread: compute-intensive tasks moved into native modules
- Lighter loads: optimized images and lazy-loaded screens
Implementation Approach
1. Architecture Setup
Flutter: BLoC or Riverpod for state management, repository pattern for data layer.React Native: Redux/MobX or Context API, React Navigation for routing.
2. Platform-Specific Modules
Create native bridges for camera, biometrics, health data, or third-party SDKs. Implement platform channels (Flutter) or native modules (React Native) with proper error handling and fallbacks.
3. UI Polish
Follow iOS Human Interface Guidelines and Material Design. Use platform-specific fonts (SF Pro on iOS, Roboto on Android), navigation patterns (tab bars vs bottom nav), and interaction conventions.
4. CI/CD Pipeline
Automate builds with Fastlane, GitHub Actions, or Bitrise. Set up TestFlight/Play Console beta distribution, automated screenshot generation, and release notes.
Tech Stack
Flutter Stack
- Dart 3.0+, Flutter 3.16+
- BLoC, Riverpod, Provider
- Dio for HTTP, sqflite for local DB
- Firebase (Auth, Analytics, Crashlytics)
- Platform channels for native code
React Native Stack
- React Native 0.72+, TypeScript
- Expo (managed or bare), React Navigation
- Redux Toolkit, MobX, Context API
- Axios, React Query, GraphQL with Apollo Client
- AsyncStorage or Realm for offline data
- Firebase, Sentry, Expo Updates (over-the-air)
- Jest and Detox for testing
- Native modules (Java/Kotlin, Swift/Obj-C)
Typical Outcomes
- One codebase instead of two — a feature is written and tested once
- 80-95% shared code between iOS and Android
- Native performance: 60fps animations, fast startup, smooth scrolling
- Reduced maintenance: Single codebase for features, bugs, updates
- Store-ready in 4-8 weeks for MVPs
Frequently Asked Questions
Flutter vs React Native: which should I choose?
Choose Flutter for high-performance UIs, custom animations, and if your team knows Dart. Choose React Native if your team knows JavaScript/React, needs extensive third-party integrations, or wants easier web code sharing. Both deliver native-quality apps.
How much code can I share between iOS and Android?
Typically 80-95% shared code. Platform-specific modules (camera, permissions, native integrations) require separate implementations. Flutter's widget library and React Native's component system handle UI differences automatically.
Can cross-platform apps feel truly native?
Yes—with proper platform conventions (iOS Human Interface Guidelines, Material Design on Android), native navigation patterns, platform-specific fonts, and custom native modules where needed. Both Flutter and React Native can deliver indistinguishable native experiences.
Expo or bare React Native?
Start with Expo's managed workflow when its built-in modules cover your features; it is the fastest path to a working app. Choose the bare workflow when you need custom native modules, a specific native SDK, or full control over the iOS and Android projects.
How do you keep a React Native app fast?
Enable the Hermes engine and the New Architecture, virtualize long lists with FlatList, reduce re-renders with React.memo and useMemo, and move compute-heavy work off the JavaScript thread into native modules.
What is the trade-off between Flutter and native development?
Flutter shares one codebase across iOS and Android, so features and fixes ship to both platforms together and the UI stays consistent. Native development in Swift or Kotlin gives the most direct access to platform APIs and follows each platform's conventions without a bridging layer. Flutter suits products that need the same features on both platforms; native suits apps that depend heavily on platform-specific capabilities.
Is Flutter a good choice for web apps?
Flutter web works well for app-like experiences such as dashboards, internal tools, and companion versions of a mobile app, because it reuses the same widgets and logic. It is a weaker fit for content-heavy, SEO-dependent sites, where a conventional HTML framework loads faster and is easier for search engines to index.
Ready to build cross-platform?