01
Start with product constraints
List the supported platforms, offline requirements, device integrations, accessibility needs and release schedule. A framework decision made before this work can create expensive exceptions later.
Include the expected product lifetime. A short validation build and a long-lived operational system may justify different choices.
- Required platforms
- Native device APIs
- Background processing
- Performance-sensitive interactions
02
Understand what “shared code” means
Cross-platform frameworks can share product logic and many interface components, but platform-specific work does not disappear. Permissions, notifications, store rules and native integrations still need platform testing.
React Native renders through native platform components. Flutter provides its own UI toolkit across supported platforms. Both allow native integration when required.
- Estimate shared and native work separately
- Review library maintenance
- Plan platform-specific design
- Test on physical devices
03
Choose for the team that will maintain it
A familiar language can speed up the first release, but maintenance also depends on debugging skills, build pipelines and access to native expertise.
Prototype the highest-risk feature before committing to the full stack. That might be a camera workflow, background location, offline sync or complex animation.
- Build a technical spike
- Test release builds
- Review upgrade paths
- Document native dependencies
04
Use a decision table
Compare options against weighted requirements rather than general popularity. Record why the decision was made and what would cause it to be revisited.
The final architecture should make the important workflow dependable and keep future changes affordable.
- User experience fit
- Delivery speed
- Native capability risk
- Long-term ownership
Sources
Primary references
Technical and regulatory points were checked against the following primary or official references.
This guide was prepared with AI-assisted research and drafting, then checked against the cited sources and reviewed for unsupported claims before publication.