Modified version from https://github.com/FiberJW/react-native-app-link/blob/master/index.js

app-link.js

import { Linking, Platform } from 'react-native'

export const maybeOpenURL = async (
  url,
  config,
) => {
  Linking.openURL(url).catch((err) => {
    if (err.code === 'EUNSPECIFIED') {
      openInStore({
        appStoreLocale: 'us',
        ...config,
      })
    } else {
      throw new Error(`Could not open ${config.appName}. ${err.toString()}`)
    }
  })
}

export const openInStore = async ({ appName, appStoreId, appStoreLocale = 'us', playStoreId }) => {
  if (Platform.OS === 'ios') {
    Linking.openURL(
      `https://itunes.apple.com/${appStoreLocale}/app/${appName}/id${appStoreId}`,
    )
  } else {
    Linking.openURL(
      `https://play.google.com/store/apps/details?id=${playStoreId}`,
    )
  }
}

export default {
  maybeOpenURL,
  openInStore,
}