iCloud
Manage subscribers to shared albums in iCloud
You can add more subscribers to and remove subscribers from shared albums you own. You can also choose whether to allow subscribers to add photos and videos to a shared album you own.
Add subscribers
In the Photos app on your iPhone, tap a shared album.
Tap People, then tap Invite People.
Enter the email addresses of the subscribers you want to add, then tap Add.
Remove subscribers
In the Photos app on your iPhone, tap a shared album.
Tap People, then tap the subscriber you want to remove.
Tap Remove Subscriber.
Only the owner can manage subscribers and album settings.