by Semrush
SEO research, content writing and AI search visibility
The free trial lasts for seven days and requires no credit card.
by Surfer
Write articles that cover what search engines expect
Content editor that scores articles against top-ranking pages and suggests terms.
Free trial. The page offers a 'Start for Free' option for all plans, but does not specify the duration or limits of the free trial.
The cheapest paid plan is Discovery at 49 USD per month, billed yearly.
From their website — their pricing page, checked 2026-11-04
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by Semrush
SEO research, content writing and AI search visibility
The free trial lasts for seven days and requires no credit card.
by Clearscope
Content grading to make articles more complete
The page offers a 14 day free trial for all plans.
by Frase
Research and write SEO content briefs and articles
The 7-day free trial includes Professional's full feature set with caps of 5 articles, 50 audit pages, 25 AI prompts, and up to 3 seats.