Growing an audience
Running the business
Both cover seo & discovery and research & trends. Here is what separates them on price, billing, what you can take with you, and coverage.
| Ahrefs | Semrush | |
|---|---|---|
| Starting price | From $129 | From $139 |
| Pricing model | Free plan, paid tiers | Paid subscription |
| Free tier | Yes | No |
| Billing | Monthly or annual | Monthly or annual |
| Free trial | Not stated | Not stated |
| API | Yes | Not stated |
| Data export | Not stated | Not stated |
| Their cut | Not stated | Not stated |
| Runs on | Web | Web |
| Covers | SEO & Discovery, Research & Trends | SEO & Discovery, Research & Trends |
| Works with | Nothing in particular | Nothing in particular |
| Founded | Not listed | Not listed |
| Reader rating | No reviews yet | No reviews yet |
| Live deals | None right now | None right now |
Backlink and keyword data at full depth
Ahrefs runs its own crawler, which is why its backlink index is the one other tools get compared against, and why the keyword data goes deeper than the free alternatives. Site Explorer and Content Gap are what most people open it for. It is priced for businesses rather than for individuals, and the company states outright that it never discounts.
Our note
Between this and Semrush the split is old but holds: Ahrefs for backlinks and content research, Semrush for advertising data and rank tracking breadth. Pick on which half of the job is yours, because paying for both is rarely worth it.
Keyword and competitor research at agency depth
Semrush is the tool an SEO reaches for when they need to know what a competitor ranks for and what it is worth. Position tracking, site audits and keyword gaps are all there, along with newer reporting on how brands surface in AI answers. It costs more than most creators can justify, and the entry plan tracks five sites and 500 keywords.
Ratings are the average of reviews readers left. The facts are stated by each tool’s own listing and are not verified by CloutStack. How we make money.