When you use Creately on the Free/Public edition all your diagrams are public by default and will be available in our diagram community.
When you purchase a Creately plan you are able to set your diagrams to private and unpublish it from our community. In order to unpublish a current public diagram please do the following:
1. Open the diagram in Creately.
2. On the right-hand side expand the "Publish" tab.
3. Remove the tick/check from the box next to "Share with Community".
Your diagram will now be private. New diagrams you create on your premium plans will be private by default.