Collections are private by default. Only you can see them until you invite someone.
When you share a collection, you choose:
Go to the collection you want to share.
Look for the gear icon at the top right.
Find the Sharing or Invites section.
Type the email address of the person you want to invite.
Pick what they can do: Viewer, Contributor, or Editor.
They'll get an email with a link to join.
Viewer
Can see photos and leave comments. Can't add or remove anything.
Contributor
Everything a Viewer can do, plus upload their own photos.
Editor
Everything a Contributor can do, plus organise and remove photos.
For more details, see Understanding Permissions.
Go to Collection Settings > Sharing to see everyone who can view the collection.
Changes happen immediately.
They'll lose access straight away.
When you invite someone, they need to accept before they can see anything. Invites expire after 30 days.
No problem. When they click your invite link, they'll be prompted to create a free lovd account.
Ask them to:
You can also resend the invite from the Sharing settings.
This makes it easy to have everyone add their photos from a holiday or event - they don't need a paid plan.