I have been using Ghost Sphere since it first came out. I have watched Ghost Sphere continue to grow and become a more robust application. I upgraded to Ghost Sphere Pro, as soon as it came out. I can now create dynamic encrypted vaults, which can be made invisible. I can hide multiple folders, with the folders and their contents invisible to Spotlight. I have Ghost Sphere set up so that when I launch it, all I have to do is enter my password, and my hidden folders become visible automatically. When I quit Ghost Sphere, my hidden folders become invisible again, automatically. I find this very convenient.

I have contacted the developer with questions and suggestions. He responds rapidly, with clear explanations, and is open to feedback and suggestions. I am very satisfied with Ghost Sphere and have recommended it to my Mac friends.