Fastfield now allows you to send your reports directly to your Google Drive.
To get started, open your form in the form builder, and click on the "Delivery" button.
Then in the delivery window, click and drag the "Send to Google Drive" action to the
"Form Submit Actions" panel. Then click "Connect and Authorize with Google Drive".
Then just click "allow".
Now just return to your form and (if desired) specify a folder name for your drive.
Your report files will now be located in Google Drive at
Google Drive/apps/Fast Field Mobile Forms/Specified Folder/