Semrush is described as 'Powerful suite with 55+ tools for SEO, PPC, and content management, offering keyword research, site audits, social media scheduling, and competitive analysis' and is a popular SEO tool in the business & commerce category. There are more than 50 alternatives to Semrush for a variety of platforms, including Web-based, SaaS, Mac, Windows and Linux apps. The best Semrush alternative is Serpstat. It's not free, so if you're looking for a free alternative, you could try SimilarWeb or ahrefs. Other great apps like Semrush are Google Search Console, Moz, SEO PowerSuite and Screaming Frog SEO Spider.