Semrush vs Ahrefs vs Moz: Which SEO Tool Is Worth It?

Semrush, Ahrefs and Moz are not three versions of the same product any more, and the honest way to answer "which one is worth it" is to stop arguing about which index is bigger and start reading the allowance sheet. On 16 September 2026 we pulled all three vendors' own pricing pages and wrote down what each plan actually grants you: the seats, the projects, the tracked keywords, the refresh frequency, the export rows, the API terms and the AI search prompts. The verdict falls out of those numbers rather than out of anybody's opinion.

A note on method, because it matters for a comparison like this. We did not run these platforms side by side and we are not claiming a bake-off. Every figure below was read off the vendor's published pricing page on 16 September 2026 and is labelled with its billing basis, monthly or annual. Prices in this category move, and a great deal of the comparison content ranking for this query quotes plan names that the vendors have since retired.

The short answer on Semrush vs Ahrefs vs Moz

Buy Semrush if you need daily rank tracking and daily AI prompt tracking at volume and you have the budget. Buy Ahrefs if backlink and crawl depth is the job and you can live with weekly rank updates and small per-report row caps at the entry tier. Buy Moz if you want the cheapest credible route into AI visibility tracking and you are working at modest scale.

How much do Semrush, Ahrefs and Moz actually cost per month in 2026?

Entry pricing is closer than the reputations suggest: $99 for Moz Standard, $129 for Ahrefs Lite and $139 for the Semrush SEO plan on monthly billing. The distance opens up at the top, where Semrush Advanced is $549 and the Ahrefs Enterprise plan is $1,499 with an annual commitment required.

Do annual plans save money on these SEO tools? Yes, and by roughly the same margin at all three, but they present it differently. Semrush and Ahrefs both advertise up to 17% off for paying annually. Moz advertises 20% and is the only one of the three that publishes the first-year total next to the monthly equivalent, which is the number your finance team will actually see on the invoice. Ahrefs does not itemise the annual figure on the front of its pricing page, so if you are modelling budget, treat the annual saving as a stated discount rather than a quoted price.

Which SEO tool is cheapest to start with? On headline price it is Ahrefs at $29 a month for the limited Starter tier, and Ahrefs also runs a free tier for verified site owners. But Starter is a keyword and competitor research product, not a full SEO platform, so the honest cheapest full-suite entry is Moz Standard at $99 monthly or $79 on annual billing.

Seats: what a second person costs on each platform

This is the axis most comparisons skip entirely, and it can flip the ranking for a team of three. All four Semrush plans and all three main Ahrefs plans include exactly one user. Moz is the only vendor of the three that includes more than one seat as you move up.

Two things in that table are worth sitting with. First, Ahrefs charges more per additional user the higher your plan, so a seat on Advanced costs double a seat on Lite for the same person doing the same work, and each tier caps how many extra people you may even add. Second, a three-person team on Moz Large pays $299 all in, while the same three people on Ahrefs Advanced pay $449 plus two seats at $80, which is $609. That gap has nothing to do with data quality and everything to do with how each vendor prices humans.

Projects, tracked keywords and how often the data refreshes

Refresh frequency is the single most under-reported difference between these three tools. Semrush tracks keywords daily on every plan. Ahrefs publishes a weekly rank tracker update frequency on every tier, including the $1,499 Enterprise plan. Moz states keyword rankings as a monthly allowance and runs a separate rank checker query budget of 200 to 500 per day.

At the next tier up the shape stays the same. Semrush Pro+ gives 15 websites and 1,500 keywords tracked daily, Ahrefs Standard gives 20 projects and 2,000 tracked keywords with two years of history, and Moz Medium gives 10 campaigns and 1,500 keywords a month. If you need to know within 24 hours that a page dropped, Semrush is the only one of the three whose published frequency guarantees it.

One honest caveat on Moz: its plan cards state crawling as "400K pages crawled per mo" on Standard while the detailed comparison table on the same page states 100,000 pages crawled per week. Those are different bases for the same allowance, so confirm which one applies before you size a large site against it.

Do Semrush, Ahrefs and Moz track AI search visibility, and on which tier?

All three now sell AI search visibility tracking, and this is where the three products diverge most sharply. Semrush gates it behind a more expensive plan tier but gives you daily checks at volume. Moz bundles a large prompt allowance into its cheapest full plan but checks weekly. Ahrefs includes a token allowance on every plan and sells the real capacity as a separate package.

Semrush's SEO plan at $139 publishes no daily prompt allowance at all; the first plan that states one is Starter at $199 monthly, which brings 50 prompts tracked daily, one domain for AI brand performance and 300 AI visibility reports per day. Pro+ raises that to 100 daily prompts and Advanced to 200.

Ahrefs folds this into Brand Radar, which tracks brand mentions and citations across AI Overviews, AI Mode, ChatGPT, Perplexity, Gemini and Copilot. The included allowance is small and deliberately so: 5 tracked prompts on Lite, 10 on Standard, 20 on Advanced, with monthly check budgets of 150, 300 and 600 respectively. Real volume is a separate purchase. Custom prompt packages run $50 a month for roughly 80 daily prompts on one platform with 2,500 checks, $100 for around 100 daily prompts on two platforms with 7,000 checks, and $250 for 25,000 checks, with overage billed per check. A standalone AI Visibility Index subscription starts at $199 a month with 83 prompts per day.

Moz is the surprise here. Its $99 Standard plan includes an AI Visibility Dashboard, 50 tracked prompts and four tracked AI models, specifically GPT, Gemini, Google AI Mode and Perplexity, plus AI sentiment analysis, AI citations data and prompt suggestions. Medium doubles it to 100 prompts and two dashboards, Large gives 200 prompts and four dashboards, extra prompts are $50 per 100 and extra dashboards $20 each. The catch is written plainly on the page: the tracking frequency is weekly, not daily.

So the per-prompt maths runs against the reputations. Fifty prompts checked daily on Semrush Starter costs $199 a month. Fifty prompts checked weekly on Moz Standard costs $99, or $79 annual. Five prompts on Ahrefs Lite at $129 is a demonstration rather than a monitoring programme, and matching the other two means adding a $50 or $100 package on top. Whether daily is worth double weekly depends entirely on how fast your category's answers actually change.

Row limits, exports and whether the data is usable at scale

Ahrefs is the only one of the three that publishes hard per-report row caps on its pricing page, and they are strict at the entry tier: 2,500 maximum rows per report on Lite, rising to 30,000 on Standard and 75,000 on Advanced, against monthly export budgets of 500,000, 1.5 million and 4 million rows. If you routinely pull large backlink or keyword sets, Lite will bite long before the crawl credits do.

Moz meters differently, by query volume rather than report size, and the Standard plan is tighter than its price suggests: 150 keyword queries per month on Standard against 5,000 on Medium and 15,000 on Large. That is a 33x jump for less than double the price, and it is the strongest argument in Moz's own pricing for skipping Standard if keyword research is your main job. Backlink queries run 5,000, 20,000 and 70,000 a month with 10,000 to 50,000 results returned per query.

Semrush headlines websites and tracked keywords on its plan cards and puts the rest of the limits behind an expandable comparison table, so a like-for-like row-limit comparison against the Ahrefs figures is not possible from the front of the page. Expand the details before you commit if export volume is central to your workflow.

API access: included, gated, or sold separately

Which tool gives API access and how much does it cost? The three answers could not be further apart, and this is the axis where the "worth it" question has the clearest winner.

Ahrefs includes API and MCP server access on every paid plan, capped by rows per request at 100 on Lite, 250 on Standard and 500 on Advanced, with Ahrefs Connect integration units of 200,000, 800,000 and 2 million per month. Enterprise is uncapped with custom endpoints.

Semrush lists API data integration as an Advanced plan feature, which puts the entry point at $549 a month on monthly billing or $455.67 on annual, and the pricing page does not publish a unit price for API data alongside it.

Moz sells the API as a wholly separate product and says so directly in its own FAQ: there is no paid API access included in a Moz Pro subscription, only free limited access. Moz API pricing is metered in rows per month, from a free tier at 50 rows, through Starter at $20 for 3,000 rows and $75 for 15,000, Growth at $125, $250 and $500 for 50,000, 120,000 and 500,000 rows, Advanced at $2,000 for 4 million rows, and Enterprise from $10,000. Overages fall from $25 per 10,000 rows on the smallest plan to $5 per 10,000 on Advanced.

If you are building anything programmatic, budget the API separately for Semrush and Moz and treat it as included for Ahrefs.

Which SEO tool is best for a small agency managing client sites?

For an agency the deciding numbers are campaigns, seats and reporting, not index size. Semrush Pro+ at $299 monthly gives 15 websites, 1,500 daily tracked keywords, multi-location and device tracking, and sells white-labelled reporting as a $20 a month Pro Report add-on on top of the $10 Base Report. Ahrefs Standard at $249 gives 20 unverified projects and unlimited verified ones, plus up to five extra seats at $60 each, with Report Builder sold separately at $99 a month. Moz Large at $299 gives 25 campaigns, three seats included and branded report templates in the plan.

Run your own client count through those three. An agency with 20 active clients and three staff pays $299 plus two Semrush seats at $45, or $249 plus two Ahrefs seats at $60 plus $99 for reporting, or $299 flat on Moz Large. The spread is real and it is driven by seats and reporting add-ons rather than by data.

Is Moz still worth it in 2026?

On the numbers, yes, for a narrower case than it used to serve. Moz is no longer competing on index scale, and its $99 Standard plan is genuinely thin on keyword queries at 150 a month. What it now has is the cheapest bundled AI visibility tracking of the three, seats included rather than sold, and the most legible pricing page of the three. Where Moz stops making sense is the moment you need daily data, large exports or an API included in the subscription.

The reverse question is worth asking too. Ahrefs looks expensive per seat and slow on rank refresh, but it is the only one of the three that hands you API and MCP access on a $129 plan, and its crawl allowances at entry are the most generous published. Semrush is the most expensive path to AI prompt tracking and the only one that checks daily at volume.

What none of these tools can tell you

No third-party tool sees inside Google's ranking systems, and all three vendors sell you modelled or sampled data rather than Google's own. Google states this plainly in its guide to optimizing for generative AI features, last updated 10 July 2026: "No third-party tool has access to our internal ranking or AI systems." The same guide directs you to the Generative AI performance report in Search Console to measure how content performs in Google's AI features.

Can any of these tools tell you how you rank inside Google's AI features? Not authoritatively. What Semrush, Ahrefs and Moz can do is run prompts on a schedule and record which brands and sources the answers name, which is useful directional evidence about your share of voice in assistant answers. It is not a report from Google, and it should be read alongside Search Console rather than instead of it. That distinction matters more the more you are paying for prompt tracking.

How to decide without buying all three

Write down four numbers before you open any pricing page: how many sites you manage, how many keywords you need tracked and how fast, how many people need a login, and how many AI prompts you want monitored. Those four numbers pick the plan for you, and they are the only inputs where the three vendors genuinely disagree.

Then check the prices yourself on the day you buy. Semrush retired its long-running Pro, Guru and Business tiers in favour of SEO, Starter, Pro+ and Advanced, and Moz now runs Starter, Standard, Medium and Large with AI features written into every card. A lot of the advice still circulating for this comparison is describing plans that no longer exist, which is why this article carries a verification date on every figure rather than a claim that anything was benchmarked.