The modern React Native localization stack, react-i18next and expo-localization wired into Expo Router, plus the RTL and plural gotchas.
If your React Native app only speaks English, you're leaving ~75% of smartphone users on the table. Here's the modern stack for shipping a multilingual Expo app without three days of glue code.
The Stack
react-i18next: translation management (6M+ weekly downloads, TS-first)
expo-localization: device locale detection (or react-native-localize for bare RN)
Intl: dates, numbers, currencies (built into Hermes)
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