Do You Need Both Semrush and Ahrefs? An Honest Answer

Most teams do not need both. Semrush and Ahrefs overlap on roughly 80 percent of what a marketing team does day to day: keyword research, competitor analysis, site audits, and rank tracking. The honest reason to pay for both is that backlink analysis is a core part of your job and you already run Semrush for everything else. If you can only justify one subscription, Semrush covers more of the workflow and Ahrefs has the better link index.

That is the short answer. The longer one matters because the question is almost always a budget question in disguise. At August 2026 pricing, running both at mid tier is well over $500 a month before seats, and that is money you could spend on actually publishing pages. So it is worth being precise about what the second subscription buys you.

What is the actual difference between Semrush and Ahrefs?

Both started from different places and grew toward the middle. Semrush began as a competitive research and paid-search tool, so its strength is breadth: it covers organic, paid, content, social, and PR in one login. Ahrefs began as a backlink crawler, and that origin still shows. Its link index is the most complete in the industry and it refreshes faster than anyone else's.

Here is where each one is genuinely ahead in 2026:

Notice that only two rows have a decisive winner. That is the whole argument against buying both.

Semrush vs Ahrefs: which is better?

Neither is better in general; they are better at different things. Pick Semrush if you want one platform to cover the most ground, if you run paid search alongside organic, or if your team is large enough that the extra modules get used. Pick Ahrefs if link building and competitor authority analysis are central to your strategy, or if you want a tool your team will actually open because the interface is less cluttered.

For most business-to-business marketing teams, Semrush is the safer single choice, because the work spans research, content, and reporting rather than links alone. We go through the wider set of options in our comparison of B2B SEO tools.

How much does it cost to run both?

Prices read from each vendor's own pricing page in August 2026. Semrush now sells SEO at $139 a month, Starter at $199, Pro+ at $299, and Advanced at $549, with annual billing bringing those down to $117.33, $165.17, $248.17, and $455.67. Note that Semrush retired the old Pro, Guru, and Business tier names, so any article still quoting "Pro at $139.95" is out of date.

Ahrefs publishes in euros: Starter at EUR 27, Lite at EUR 119 (EUR 99 on annual), Standard at EUR 229 (EUR 190), Advanced at EUR 419 (EUR 348), and Enterprise at EUR 1,394. Its Brand Radar AI product starts separately at EUR 179.

So the realistic combined bill for a small team wanting usable tiers of each is Semrush Starter at $199 plus Ahrefs Lite at EUR 119, and that is before seats. Which brings up the cost most people forget.

Do extra users cost more on Ahrefs?

Yes, and this is the line item that surprises teams. Ahrefs includes one user on every plan and charges for additional seats on top: up to two more at EUR 37.4 each on Lite, up to five more at EUR 56.1 each on Standard, and up to ten more at EUR 74.8 each on Advanced. A four-person team on Standard is therefore EUR 229 plus three seats, not EUR 229. Budget for headcount, not just the plan.

Moz vs Semrush vs Ahrefs

Moz Pro is the budget option of the three and is priced accordingly, with published plans running from about $39 a month up to roughly $239 on annual billing. It gives you keyword research, rank tracking, link data, and site crawling in one place. The data sets are smaller than either Semrush's or Ahrefs', and the link index is noticeably thinner, but for a team of one to three people who need directionally correct numbers rather than the deepest index, it does the job at a third of the price.

The practical hierarchy: Moz if budget is the binding constraint, Semrush if breadth is, Ahrefs if links are. Very few teams need two of the three, and almost nobody needs all three.

When does paying for both actually make sense?

There are four situations where the second subscription genuinely pays for itself:

• Link building is a named part of someone's job. If a person on your team spends most of a week prospecting and analyzing link profiles, Ahrefs alongside whatever else you run is defensible. The index difference is real and it compounds over a year of prospecting.
• You run meaningful paid search as well as organic. Semrush's ad research is a genuine capability Ahrefs does not match, so a team doing both channels can use each tool for a distinct job rather than duplicating one.
• You are an agency billing the tools through. If client work needs both data sets and the cost is recovered in retainer, the calculation is different from an in-house team spending its own budget.
• You are auditing a large acquisition or migration. Cross-checking two independent indexes catches gaps that one alone would miss. This is a project cost, not a permanent one, and you can cancel afterward.

Outside those four, the second subscription is usually inertia. Somebody signed up during a specific project and the renewal kept going.

What can you use instead of a second subscription?

Before adding another platform, check whether free or cheaper tools cover the gap. Google Search Console is the only source of your real query data and no paid tool replaces it. Ahrefs offers a free tier that gives limited access to its data for a site you verify. Screaming Frog's SEO Spider costs GBP 199 a year for unlimited crawling, with the free version capped at 500 URLs, which handles the technical layer for a fraction of a suite subscription.

Stack those three and you have covered measurement, some link data, and technical crawling without a second five-hundred-dollar-a-month line item.

Does Ahrefs or Semrush have better keyword data?

Semrush has the larger keyword database and better coverage outside the United States. Ahrefs tends to produce cleaner difficulty scores and a less noisy set of suggestions. Both estimate volume from clickstream and modeling, so both are approximations. For low-volume business-to-business terms, where a keyword might show 30 searches a month, neither is reliable enough to make decisions on alone. Cross-check against Search Console impressions for anything you already rank for, because that is observed data rather than an estimate.

So where should the money go instead?

For most teams the honest answer is production, not research. It is common to find a marketing team paying for two research platforms while publishing two articles a month, which means the constraint was never knowing what to write. Research tools tell you what the opportunity is. They do not close it.

The same logic applies to reporting. Teams often pay for a premium tier mainly to get nicer dashboards, when what leadership actually wants is a short quarterly narrative. Export the numbers you already have and turn the quarterly export into a board-ready deck instead of buying a reporting module you will open four times a year.

If your backlog of unwritten pages is longer than your backlog of unanswered research questions, cancel the second subscription and put the money into publishing. That is the trade most teams should be making, and it is why we built B2B SEO software around producing pages rather than another dashboard.

The short version

Do you need both Semrush and Ahrefs? Probably not. Run one suite, add Search Console and a crawler, and check once a year whether the second subscription is doing work that the first cannot. If you cannot name the specific job the second tool does, that is your answer.