I have setup the sync using iCloud but it is a bit slow, is Dropbox any faster ? Which one is recommended ?
I would ask if you need to use a remote sync location, like iCloud or Dropbox.
Yeah I need remote sync
My hunch is that an differences are due to the sync platforms, not DEVONthink directly. I do take note that a number of the apps I have on my Mac that sync settings and data say something to the effect that iCloud is “suspect” whereas they typically don’t have reservations about Dropbox. I have used Dropbox for years and it works well. If you want high local performance, use your own WEBdav server or Bonjour (documented in DT’s manual).
Used dropbox sync for some months. I had to reset it twice But the resets worked like a charm.
Using iCloud since a few weeks now (for financial reasons). Working just as well.