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A React Native (Expo) app to transfer playlists between Spotify and YouTube Music with secure on-device token storage and subscription support.
Overview
Playlist Bridge is a mobile application built with React Native and Expo that enables users to transfer playlists between Spotify and YouTube Music. It uses secure on-device storage for OAuth tokens (Expo SecureStore) and manages premium access via Adapty. The app features a modern UI, internationalization (i18n), Expo Router navigation, and robust error-handling patterns. The architecture follows Redux Toolkit for state management, modular services for streaming providers, and environment-driven configuration via expo-constants. The design system and theme are tailored for readability and responsiveness, with attention to mobile performance and smooth animations.
Category
mobile
Highlights
→Secure OAuth with on-device token storage (SecureStore)
→Spotify and YouTube Music transfer with pagination and retry logic
→Adapty-powered subscriptions and paywall
→i18n localization and theme-aware UI
→Expo Router navigation and modular service architecture
Challenges
—Handling OAuth flows reliably across iOS and Android
—Managing API pagination and rate limits for large playlists
—Designing a clear UX for transfer progress and error states
Tech Stack
React NativeExpoTypeScriptExpo RouterRedux Toolkiti18n-jsExpo SecureStoreAsyncStorageAdaptyExpo AuthSessionJestReanimated
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