I read in the net, about the possibility to bring Boxcryptor to work with with Dropsync.
Added: SD card support
Additionally to Dropbox, encrypted folders can also be located on the sd card. You can now use BoxCryptor with apps like DropSync or FolderSync or simply copy the encrypted folder manually to your Android device.
This is something very important for me, because I don't want to load all the time files with expensive costs for 3G. So I could at home from wlan synchronize folders with my tablet (Android).
I gone in the preferences from Boxcryptor and make the cache size bigger. So here is all OK. Then in the preferences from Dropsync I have choosed the cache folder from my tablet (Android->data->com.boxcryptor->android->cache->crypt->BoxCryptor.bc) and the dropbox-folder from Dropbox (Boxcryptor.bc).
Dropsync loads all the files to the cache-folder, BUT if I open a file, Boxcryptor allways loads the file from Dropbox and not the file from the cache (both files are identic, no changes made).
Is there a solution for this problem? Or another easier way?