The small business plans are for one business and one website. Both include Starter data (500 tracked keywords, 750 research credits and 10,000 audit pages a month, unlimited verified sites and unlimited users) plus Content Scanner credits inside the plan, so there is no scanner add-on to buy.
Small Business Content includes 60 scanner credits a month. You get Content Ideas, keyword briefs, the Content Writer and drafts sent to your WordPress site. Nothing is published until you approve it.
Small Business Bundle includes 90 scanner credits a month and Autopilot 8 for one site: eight posts a month picked, written, scored against the top 10, checked and published on your schedule. Set the publish mode per site under Settings > Sites: drafts, publish after you approve, or autopilot.
Add-ons: Autopilot 4, 8 or 12 posts a month per site (the bundle already covers one site; a second site needs the add-on). API access for your own tools. The WordPress set up service, a one-time charge, where we connect WordPress for you and open a support ticket to collect what we need.
The routine is short: log in, check the pages, approve. Credits are taken when a page finishes; a failed job is never charged. Move to Growth or Agency any time in Settings > Billing and keep everything.