The on-line tree program is a FREE function, available to anyone who signs up for a FREE account. Signing up for a free account makes you a "member". As a member you can invite others to view your tree. You can make your tree public or private. Those you invite to your tree are required to become a member (sign up for a free account) to view your tree. Only paying subscribers can view *all* public member trees. To view any member's private tree, you must be invited by the tree owner.