I Fixed Stale Data Across Every Screen in React Native with 3 React Query Patterns

Environment: React Native 0.76+ · @tanstack/react-query v5 · TypeScript I was building a React Native app where users could interact with the same data from multiple screens. Everything seemed fine during early testing until I noticed something deeply frustrating: updating data on one screen didn't reflect on another until I manually refreshed it. Sound familiar? Here's how I diagnosed it, fixed it with 3 focused React Query patterns, and what I learned along the way. The Problem The app had three screens showing overlapping data: Screen A : Shows a list of items Screen B : Shows the same items in a different view Screen C : Shows item details with edit capability When a user marked an item complete on Screen A, navigating to Screen B still showed it as incomplete. Users had to pull-to-refresh on every screen after every action. The app felt broken, because it was. Root Cause: Isolated State After some digging, the culprit was clear. Each screen used its own hook with independent useSt