Yet another sync app is Pyd.io The Web UI is super neat, and you can choose between various backends for storage. Pyd.io offers its own sync app which I found t

Yet another sync app is Pyd.io The Web UI is super neat, and you can choose between various backends for storage. Pyd.io offers its own sync app which I found to be horribly slow. I'd suggest to use Pyd.io as a frontend and BtSync/Seafile/Syncthing as a backend.