Syncing files with my android device

Hello,

I'm searching an app for my android device for syncing my photos and maybe a few files. E.g. something like Dropbox, because I don't want my files to be somewhere on the internet. I already have owncloud on my server but it looks like their mobile app sucks and doesn't really support sync. Its ok for me as well, if its just a ftp client who uploads my new photos when I'm connected over wifi or something like that.

Any suggestions?

Thanks!