I Already installed that plugin, it was called "Fast Upload". I tried by the normal and fast uploading but didn't work.
It seems that I found a trick to make it one-way sync like chizuoka said.
1- disable all your sync including the main folder from the desktop/iOS/android client
Thanks for the info. You wouldn't mind making a tutorial on how to use the app the website as it is all in Chinese, would you? Please!