Draftboard is a collaboration tool for designers. As a designer, it helps you to easily manage your projects that you are working on. You can discuss, share and manage revisions with the team effectively.
Team members can add comments, ask questions, explain or simply post notes directly to the posted draft design.
Draftboard simplify annotation and mockup process. You can try Draftboard free for 30 days. There is no long term contract and sign up fees. The plan starts from $12/month to $99/month.
For more information about Draftboard visit http://www.draftboardapp.com