Practical, no-fluff answers to the questions developers actually ask when building mobile apps with Expo.
An honest React Native (with Expo) vs Flutter comparison for 2026 — performance after the New Architecture, native look and feel, developer experience, hiring, web support, AI tooling, OTA updates, and a clear decision guide for startups and teams.
Choose the right state management for React Native and Expo in 2026. Compare Zustand, Redux Toolkit, Jotai, and TanStack Query with code examples, learn the server state vs client state split, and get a recommended stack.
Animate React Native apps the CSS way with Reanimated 4 — keyframe animations, transitions, timing, iteration, and when to still use shared values and worklets. Copy-paste examples for Expo, New Architecture required.
MMKV vs AsyncStorage compared for React Native and Expo — speed, sync vs async APIs, encryption, setup with Nitro Modules in react-native-mmkv v4, hooks, Zustand persistence, and when to use SecureStore or SQLite instead.
Enable the React Compiler in Expo and React Native for automatic memoization. Learn the app.json setup, what it optimizes, when you can delete useMemo, useCallback, and React.memo, how to opt out with 'use no memo', and how to roll it out safely.
Step-by-step guide to publishing an Expo React Native app in 2026: app.json setup, EAS Build production builds, signing credentials, EAS Submit to App Store Connect and Google Play, TestFlight, store listings, and common rejection reasons.
Add private, offline AI to Expo and React Native apps. Compare React Native ExecuTorch, Apple Foundation Models via expo-ai-kit, and cloud LLMs, with setup code, requirements, model sizes, and a hybrid on-device and cloud fallback pattern.
Build Apple's Liquid Glass and cross-platform glassmorphism UI in Expo. Learn expo-glass-effect (GlassView, GlassContainer), expo-blur on iOS and Android with BlurTargetView, expo-linear-gradient backgrounds, fallbacks, and accessibility.
FlashList v2 vs FlatList compared — how recycling works, why estimatedItemSize is gone, masonry layouts, chat lists with maintainVisibleContentPosition, migration steps, and performance tips for smooth React Native lists in Expo.
Build iOS home screen widgets, Android widgets, and iOS Live Activities in Expo with expo-widgets — config plugin setup, the 'widget' directive, Expo UI layouts, updateSnapshot and updateTimeline, and starting and updating a Live Activity.
Learn @expo/ui — render real SwiftUI and Jetpack Compose components from React. Covers the universal API, Host, Switch, Button, FieldGroup settings screens, platform-specific imports, modifiers, and when to use Expo UI vs regular React Native views.
Everything that matters in Expo SDK 58 — React Native 0.88, iOS 27 and iPhone Duo support, stable Expo Router native tabs and data loaders, App Intents, recycling Expo UI lists, Android widgets — plus the breaking changes and a step-by-step upgrade guide.
Build a real native tab bar with Expo Router NativeTabs — iOS 26+ Liquid Glass, Material on Android, SF Symbols and Material icons, badges, a search tab, and minimize-on-scroll. Updated for the stable expo-router/native-tabs API in SDK 58.
Set up deep links in Expo Router — custom URL schemes, iOS Universal Links with apple-app-site-association, Android App Links with assetlinks.json, handling params, testing with uri-scheme and adb, and routing push notifications to screens.
Add in-app purchases and subscriptions to an Expo React Native app with RevenueCat. Install react-native-purchases, configure keys, fetch offerings, buy packages, check entitlements, show native paywalls, and test with development builds.
Add native haptic feedback to Expo apps with expo-haptics — impactAsync, notificationAsync, selectionAsync, and Android-specific performAndroidHapticsAsync. Includes a reusable haptics hook, UX rules, and iOS/Android caveats.
Ship bug fixes to Expo apps in minutes without app store review. Set up EAS Update and expo-updates, configure channels and runtime versions, publish with eas update, run percentage rollouts, roll back, and check for updates in-app with useUpdates.
A practical guide to AI-assisted React Native development in 2026. Set up the Expo MCP server in Claude Code or Cursor, use local tools like screenshots and logs, write an AGENTS.md, and follow a prompt workflow that produces maintainable Expo code.
Step-by-step: build a streaming AI chatbot in Expo React Native with the Vercel AI SDK. Covers Expo Router API routes, useChat with expo/fetch, polyfills, tool calling, keeping API keys on the server, and deploying.
The essential React Native and Expo libraries for 2026 by category — navigation, UI and styling, animation, lists, state and data, storage, forms, media, auth, payments, and tooling. Every pick works with the New Architecture and Expo SDK 58.
The 10 most-searched Expo SDK modules — Expo Router, notifications, camera, image picker, location, image, file system, secure store, video/audio, and SQLite — each with a minimal, copy-paste example for SDK 54+.
A practical guide to adding authentication to an Expo app — the options (Supabase, Clerk, Firebase, custom), a Supabase email + OAuth walkthrough, and how to protect routes with Expo Router.
expo-av is retired — here's how to play video and audio in Expo with the modern expo-video and expo-audio APIs. Learn useVideoPlayer, VideoView, useAudioPlayer, controls, and looping. SDK 54+ examples.
Add a real on-device SQL database to your Expo app with expo-sqlite — open a database, create tables, run queries with parameters, use transactions, and build an offline data layer. SDK 54+ examples.
Store auth tokens and secrets safely in Expo with expo-secure-store — encrypted storage backed by the iOS Keychain and Android Keystore. Learn set/get/delete, options, limits, and an auth pattern. SDK 54+.
Learn Expo Router from scratch — file-based routes, stack and tab navigation, dynamic routes, route params, and programmatic navigation. A practical SDK 54+ guide with copy-paste examples.
A step-by-step guide to local and push notifications in Expo — set up expo-notifications, request permissions, schedule local reminders, get an Expo push token, and handle taps. SDK 54+ examples.
Add geolocation to your Expo app with expo-location — request permissions, get the current position, watch location updates in real time, and reverse-geocode coordinates into an address. SDK 54+ examples.
Add a photo/video picker to your Expo app with expo-image-picker — request permissions, open the library or camera, crop, allow multiple selection, and upload the result. SDK 54+ examples.
Replace React Native's Image with expo-image for automatic caching, blurhash placeholders, and smooth transitions. Learn contentFit, cachePolicy, priority, and how to migrate. SDK 54+ examples.
Save, read, and delete files on device with expo-file-system's new File and Paths API. Learn to cache JSON, persist user data, list directories, and choose document vs cache storage. SDK 54+ examples.
Build a camera screen in Expo with expo-camera — request permissions, show a live preview with CameraView, take a photo, flip cameras, and scan barcodes. Minimal SDK 54+ examples.
A clear, scalable folder structure for Expo Router apps — how to organize routes with groups, where to put components and libs, and conventions that keep a growing React Native codebase maintainable.
Use Tailwind CSS classes in Expo and React Native with NativeWind — how to set it up, style components with className, handle dark mode, and when NativeWind is the right choice.
