SiteSpin Retainer Floor

SiteSpin Pro runs $35/mo for one website, and each additional pair of sites costs $50/mo (or $500/yr), so the platform cost per client site falls as an agency stacks clients under one account. The framework: calculate your true SiteSpin cost per client site, then set a retainer floor that keeps gross margin above 70% after setup labor. A solo operator running 5 client sites pays roughly $35 plus two add-on blocks ($50 each) for about $135/mo total, or $27 per site. That supports a $399/mo SiteSpin Starter Site offer with 8 hours of setup and 2 hours monthly maintenance. The trap is selling one-off builds: a single $35/mo site against a $399 one-time fee leaves no recurring revenue to cover the subscription. Agencies should only pitch SiteSpin where the client accepts a monthly retainer, because the platform cost is recurring whether or not the client renews.