Facer watchfaces on kate spade Scallop w/iPhone X

Hi. First time visitor. I’m using the Android Watch app on an iPhone X for my Scallop watch. I “downloaded” the Facer app and it tells me new faces are syncing, but on the phone itself the only choices available are the three defaults. Any ideas about whether it’s possible to actually use the sync feature this way on a non-Android phone? Thanks in advance!