WD Photos IOS upload

Hi all,

So I have uploaded my camera roll and all went well, the photos are available on WD photos and the videos are in the same folder on the My Cloud App. However am I right in thinking that there is no auto upload function for IOS?

Also is there an incremental backup for the photos or do I have to know which ones I have already backed up? I don’t wish to upload them all again, when I select all will it discard duplicates?

Thanks

It only adds new pics, and it’s not automatic on my iPad.