It is subscription-based, but by simply creating a free account you can experience much of the software’s capabilities for free. But First: Who Needs a Free Semrush Account? Using Your Free Semrush Account for Content MarketingThere are three main ways in which a free user can leverage Semrush for content marketing. This will allow you to use Semrush to its full potential for free forExplore Free AppsOnce you have a free Semrush account, you can explore the Semrush App Center. The above should give you a good idea of what goes into a free Semrush account.