Google Drive Files to Dropbox is a file transfer, backup tool for Google Drive. 
It allow you to save Google Drive's files to Dropbox folder directly. You can backup your Google Drive to Dropbox.

You don't need to install any further software or extension. This app only works locally without going through the server. Your files are completely safe, guarantees privacy.

Integrate your Google Drive with Dropbox. Provides connect with Google Drive. You can directly use this app with your drive.