Share.isPackageInstalled (Android only)

It's a simple method that check if a package-name is installed with the Intent on Android. Similar to Share.open and Share.single this method will return a Promise, which will be fulfilled when the native code successfully check for the application.

Using a promise implementation:

Share.isPackageInstalled('com.instagram.android')
  .then((response) => {
    console.log(response);
    // { isInstalled: true/false, message: 'Package is Installed' }
  })
  .catch((error) => {
    console.log(error);
    // { error }
  });

Or with async/await:

const checkPackage = async () => {
  const { isInstalled } = await Share.isPackageInstalled('com.instagram.android');
}

Don't forget to add queries for Android SDK >= 30. Check package visibility on Android

Keep in mind, that similar to Share.open and Share.single it's a good idea using a try/catch whenever a call to this method is requested.

For iOS you can use the Linking.canOpenURL(instagram://) where the url is the app scheme that you want to check. Also, note that calling the isPackageInstalled on iOS will return a Error: Not implemented.