So, yeah, as others have said, this thing does not work automatically because of the irritating IOS background activity restrictions. Also, triggering upload via location geo-fencing does not seem to work at all either. But it’s still a useful app. I was trying to sync everything to Dropbox and could never to get it to complete before IOS forces it to stop, especially if any large videos were in the queue. But I took an idea from another reviewer here and set up a local network FTP sync to an iMac. CameraSync will now very quickly FTP sync over the much faster local network to my Dropbox folder on that iMac, which then syncs to Dropbox at its own much more reliable pace. Setting up FTP on OSX is dead easy — just Google it if you want to try this.