What's a good one-way sync app?

I’m looking for a one-way sync app that can regularly do a recursive sync of a folder in Nextcloud, from the server to the SD card in my phone.

While the devs work on getting this functionality into the official Android app (thanks!), is there another app that people use that they’d recommend? The features I’m looking for are:

  • regular (eg. daily) syncs
  • recursive
  • skips already synced files

I tried FolderSync, but it was so buggy I couldn’t use it (UI doesn’t update, so the notification says it’s working but the app says nothing’s happening, etc.). Is there anything else I could try?

I am using syncronize ultimate.