When you sign-up for the basic plan for independents ($19/mo; up to 10,000 supporters), you are getting every single feature NationBuilder has to offer except blast email and text messaging. For campaign-specific features, be sure to select the $19 "Political campaign edition."

There is no other distinction, feature wise, between the basic plan and the other more expensive plans. The distinction is solely based on how many supporters are in your database. If you want to start building your nation from scratch this is the way to go.