I subscribed to Dropbox for backup and photo storage. I did not realize downloading the app would use precious (Android) device space. I thought it was merely for ease of access/clearer viewing. But when I delete a photo from the app it disappears from my Dropbox account. That defeats the entire purpose of Dropbox for me. The Dropbox app is devouring my storage space. What can I do to safely correct this and not lose the protection I am paying the service to provide?