In React Native, there is no standard for loading resources in your desired language. Various packages are available to help you achieve this. You can use expo-localization in combination with i18n-js to get the device locale and set translations for your app.
import * as Localization from 'expo-localization';
import i18n from 'i18n-js';
// Set the key-value pairs for the different languages you want to support.
i18n.translations = {
en: { welcome: 'Appt accessibility' },
nl: { welcome: 'Appt toegankelijkheid' },
};
// Set the locale once at the beginning of your app.
i18n.locale = Localization.locale;