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:
- Go to Home > Settings > Dropbox > Link with Dropbox
 - It will then ask permission from the user to allow access to Dropbox. Tap on “Allow”
 - It will create the link and will show that it is now connected with dropbox.