React Native Background Fetch

Background fetch is a React Native module that provides periodic background data fetching on iOS and Android. Current stable version is 4.4.2. It leverages native APIs (iOS BGTaskScheduler, Android JobScheduler/AlarmManager) to schedule minimal background tasks, not guaranteed to run at fixed intervals. Key differentiators: reliable cross-platform API, support for headless JS tasks, Expo config plugin, and TypeScript types. Alternative to react-native-background-actions but more battery-friendly.