Good architecture in React Native is mostly about boundaries: where features begin and end, where state lives, and how native capabilities are reached. A structure that survives growth is one where a new engineer can find any feature and change it without touching unrelated code.
Key takeaways
- Organize code around product features and clear ownership boundaries.
- Keep server state, local UI state, and persistent device state separate.
- Make navigation, analytics, errors, and native integrations consistent across features.
Organize by feature, not by file type
Group code by product feature (auth, checkout, profile) rather than by technical layer (components, hooks, utils) at the top level. Each feature owns its screens, local state, data access, and tests, and exposes a small public surface. Shared primitives live in a clearly separated design-system and core layer.
This keeps the dependency graph readable: features depend on shared code, not on each other, and removing a feature is a contained operation.
Separate the kinds of state
Treat server cache (data fetched from an API), client UI state (form values, toggles), and persistent device state (auth tokens, settings) as three different problems. Use a data-fetching library for the server cache, lightweight local or shared state for UI, and secure storage for persistence.
Standardize the cross-cutting concerns once — navigation structure, error boundaries, analytics events, and the native module interface — so every feature behaves consistently and production issues are diagnosable.