Cross-Platform Apps with Flutter & React Native
One codebase, both platforms, 60fps. Launch to Android and iOS without doubling your budget.
For most businesses, cross-platform is the correct commercial decision. You reach both app stores with one codebase, one team and roughly 60% of the cost of building native on both platforms — while still delivering smooth, native-feeling performance.
We use Flutter when the app is design-heavy and the visual result must be pixel-identical across platforms. We use React Native when your team is already JavaScript-based, when you want to share code with a web app, or when you need deep access to native modules.
Either way you get one design system, one API layer, one release process, and the ability to ship a feature to both platforms the same day.
- -38%
- Cost vs native
- 60fps
- Frame rate
- 82%
- Code shared
82%
Code shared between Android and iOS
The problems we fix
Double the budget for two platforms
Separate native teams mean duplicated cost, duplicated bugs and features that drift out of sync between platforms.
Cross-platform apps that feel cheap
Poorly built Flutter or React Native apps have janky scrolling, wrong platform conventions and laggy navigation.
Unmaintainable hybrid code
Rushed implementations with business logic in the UI layer become unshippable within a year.
How we fix them
One shared architecture
A single design system, shared API layer and centralised state management, with platform-specific polish only where it matters.
Performance discipline
Frame profiling, list virtualisation, image caching and native module use where the platform demands it.
Testable, layered code
Business logic separated from presentation with unit and integration tests, so the app stays maintainable.
What Cross-Platform App Development includes
What you actually get
- Framework recommendation with written rationale
- Unified design system for both platforms
- Shared codebase with platform-specific components where needed
- API integration layer and offline support
- Push notifications for FCM and APNs
- Automated builds and CI/CD for both stores
- Device testing across the platform matrix
- Submission to Play Store and App Store
Tools & platforms
- Flutter
- Dart
- React Native
- Expo
- Firebase
- Fastlane
How we deliver it
- 01
Framework choice
Assess requirements against Flutter and React Native; recommend one with reasons.
Week 1
- 02
Design
Shared design system with documented platform deviations.
Week 2–4
- 03
Build
Sprint delivery with builds shared weekly for testing on both platforms.
Week 4–10
- 04
QA
Cross-platform device matrix, performance profiling and regression testing.
Week 10–12
- 05
Dual launch
Submit to both stores, manage review, monitor crashes and iterate.
Week 12+
Cross-Platform App Development — common questions
Discuss your cross-platform app development project
Book a free 30-minute consultation and get a written plan — whether or not you work with us.