Free Goldfinch incorporates several songs audios to educate your bird.

You can share these audios with your friends so that they can also listen to the singing of the goldfinch.

The application is completely free and updates are incorporated periodically at the request of users

Make sure that third-party apps are allowed on your device: go to Menu->Settings->Security-> and check "Unknown Sources"

Tap the APK file. Allow the app any required permissions it asks for. Then, at the bottom of the installer window, click INSTALL.

You'll see a confirmation the app is installed. Now you'll see the app available in your list of installed apps.