iOS 10/macOS Sierra: Merging Faces between iPhone and Mac I have iOS 10 installed on my iPhone and macOS Sierra installed on my iMac. I'm using the iCloud Photo library on both.

On my Mac, I've spent a lot of time tagging faces and have done so on many of my ~35,000 photos. However, they do not seem to sync onto the iPhone Photos app. There, I'm supposed to do the whole tagging again, which I certainly don't want to do, given all the effort.

From what I've read so far, it seems that Apple has somehow not included this feature yet. Is that correct? Is there anything I can do about it?
With their focus on privacy Apple have deliberately made the decision not to sync certain information between devices.

They have documented this in a Knowledge base article called Use Photos and iCloud Photo Library on multiple Mac computers.


  After you sign in, these items appear in the Photos app on all of your
  Mac computers:
  
  
  All original photos and videos
  All folders and albums
  Smart Albums
  Keywords
  Memories
  Key photo selections
  
  
  These items are available only on the Mac where you created them:
  
  
  Books, cards, and calendars 
  Slideshows 
  Keyword shortcuts
  Unused keywords 
  Last imported album (this album contains photos you most recently imported on a specific Mac)
  Names and faces in the People album