Dropbox can be integrated with the app.  it is use to save backup files. The assumption is that you already have a dropbox account.
To setup the dropbox:

dropbox_11) Go to Home > Menu > TOOLS > Dropbox.
dropbox_22) Tap on “Link with Dropbox”.
dropbox_33) It will then ask permission from user to allow access to Dropbox.  Tap on “Allow”
dropbox_44) It will then create the link and will display a message “Connected to Dropbox”