No Face ID, can’t save photos, doesn’t support password managers
Furthermore, because it’s not a native app - when you use a password manager to fill in the credentials - it doesn’t really work because it’s essentially a webview, so the url that is passed to 1Password is localhost which obviously does not match the Bright Horizons website url, so you have to search for the login manually.
But probably the most annoying thing is that you cannot save the photos of your child. I understand there are some privacy concerns here, but at least allow downloading the photos in which your child is tagged.