SEO tools · Comparison
SEO tools compared: five tools, one rubric, dated prices
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Most SEO tool comparisons rank on features and price. This one scores five tools on the same five-part rubric, shows every sub-score, dates every price to the day we read it off the vendor's own page, and says plainly who each tool is wrong for. Semrush wins on breadth at $139.95 a month. Ahrefs has the better link data and pays us nothing. Moz Pro is the easiest to pick up at $99. SE Ranking gives you four times Semrush's tracked keywords for less. Mangools is the cheap one, and it is cheap for reasons worth knowing before you buy.
The rankings are our editorial judgement, built from vendor documentation, live pricing and publicly available user reviews. We have not run these tools on paid plans ourselves, and the page says so wherever that matters. You can read the method on our how we test and score page.
The comparison at a glance
Entry price is the cheapest realistic paid plan on each vendor's public pricing page, monthly billing, with the annual equivalent beside it. Each figure carries the date we read it.
| Tool | Score | From | Annual | Checked | Wrong for |
|---|---|---|---|---|---|
| Semrush | 8.6 | $139.95/mo | $117.33/mo | 27 July 2026 | Anyone trialling on a monthly plan |
| Ahrefs | 8.2 | $129/mo | about $108/mo | 17 August 2026 | Bursty workers who batch their research |
| Moz Pro | 7.9 | $99/mo | $79/mo | 8 September 2026 | Anyone who evaluates by card-on-file trial |
| SE Ranking | 7.7 | $129/mo | $103.20/mo | 27 July 2026 | Anyone who needs a price held for years |
| Mangools | 7.4 | $30.50/mo | $18.85/mo | 14 July 2026 | Agencies defending numbers to a client |
#1 Semrush
8.6/10- Data quality 9.0
- Feature depth 9.2
- Usability 7.6
- Value 7.8
- Support 8.2
From $139.95 a month, or $117.33 a month billed annually, read from the Semrush pricing page on 27 July 2026.
Semrush is the widest toolkit here and the only one that covers keyword research, rank tracking, technical audits, competitor analysis, paid search and social from a single login. Feature depth scores 9.2 because almost nothing is missing. Usability scores 7.6 for the same reason: the interface has to carry all of it, and new users feel that.
The entry plan covers 5 projects and 500 tracked keywords with daily updates, which is the tightest keyword allowance of any tool in this comparison at that price. Extra seats run about $45 a month each. Adobe completed its acquisition of Semrush in April 2026.
Wrong for anyone trialling on a monthly plan. Semrush's Cancellation and Refund Policy limits the advertised 7-day money-back guarantee to initial subscriptions of twelve months or greater, and states that refunds are not available for month-to-month subscriptions. Buyers on Trustpilot and in complaints filed with the Better Business Bureau describe the same sequence: a trial converts, they contact support within the hour, and the charge stands. One BBB complainant recorded cancelling and then being billed anyway, writing that there was "no final 'subscription canceled' confirmation". If you want to evaluate Semrush and keep the option to walk away, that is an argument for the annual plan, not the monthly one.
Best for: Agencies billing for the full workflow
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#2 Ahrefs
8.2/10- Data quality 9.3
- Feature depth 8.4
- Usability 8.0
- Value 7.2
- Support 8.0
From $129 a month, or about $108 a month billed annually, read from the Ahrefs pricing page on 17 August 2026.
Ahrefs has the best link data in the category, and data quality scores 9.3 on the strength of it. Its index is the one other tools get compared to, and it crawls beyond Google. If backlink and competitor research is the daily job, this is the tool that does it best.
Value scores 7.2 because of how the plans meter you. There is a $29 Starter tier, but the realistic professional entry point is Lite at $129 a month. Almost everything you do spends a credit, and Brand Radar, the AI visibility feature, is a separate add-on from $199 a month.
Wrong for bursty workers who batch their research. The credit system charges per report view and per filter, so a month's allowance can go in a single sitting. A user on r/SEO described it directly: "I hardly touched few things in keyword explorer. I haven't even started and 40 credits are over." The same complaint recurs across five separate threads and review pools. Separately, Trustpilot carries repeated reports of paying accounts hitting "suspicious activity" lockouts during heavy manual use. Ahrefs also runs a non-use-only refund policy with no free trial, so evaluating the product is what forfeits the refund.
Best for: Backlink and competitor research most days
#3 Moz Pro
7.9/10- Data quality 7.4
- Feature depth 7.6
- Usability 8.6
- Value 8.0
- Support 8.0
From $99 a month, or $79 a month billed annually, read from the Moz Pro pricing page on 8 September 2026.
Moz Pro is the easiest tool here to pick up, and usability scores 8.6 for it. Domain Authority is still the number most of the industry reaches for when sizing up a site quickly, and Keyword Explorer and Link Explorer are legible in a way the heavier platforms are not.
Standard is $99 a month, or $79 billed annually, and covers 1 user, 3 tracked sites, 300 tracked keywords and 400,000 pages crawled a month. That plan now also includes an AI visibility dashboard, 50 tracked prompts and coverage of four models. Data quality scores 7.4: the keyword and link databases are smaller than Semrush's or Ahrefs', which shows on long-tail terms.
Wrong for anyone who evaluates by card-on-file trial. Moz's own Terms of Service, quoted by the company in a Better Business Bureau response, state that "Services payment obligations are non-cancelable and Service Fees paid are non-refundable". Around ten separate Trustpilot reviewers describe cancelling and being billed anyway, one writing that they "cancelled the services again only to be billed again". Another calls the cancellation page "deliberately confusing". If your buying process is start a trial and walk away if it does not fit, that process does not work cleanly here.
Best for: Solo SEOs who want clarity over depth
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#4 SE Ranking
7.7/10- Data quality 7.6
- Feature depth 7.8
- Usability 7.8
- Value 7.6
- Support 7.5
From $129 a month, or $103.20 a month billed annually, read from the SE Ranking pricing page on 27 July 2026.
SE Ranking is the capacity play. Its entry plan carries 2,000 daily tracked keywords against Semrush's 500, and 10 projects against 5, for $103.20 a month billed annually rather than $117.33. Extra seats start around $16 a month where Semrush charges from $45. For an agency tracking many clients across many terms, that ratio is the whole argument.
Its backlink data comes from its own crawler rather than a licensed index, which is unusual at this price. Keyword volume comes from Google Keyword Planner, so some terms return zero.
Wrong for anyone who needs a price held for years. Six separate reviewers across Trustpilot and Capterra describe being moved off legacy plans onto tiers costing 50 percent to five times more, several saying it happened without their agreement. One wrote that the tool "has become far less appealing after being migrated, without my consent, to a significantly more expensive plan". SE Ranking also states that paid but unused funds are not refunded outside specific exceptions, so the 14-day trial is the whole evaluation window.
Best for: Tracking large keyword sets across many projects
#5 Mangools
7.4/10- Data quality 6.6
- Feature depth 6.5
- Usability 9.1
- Value 8.4
- Support 7.5
From $30.50 a month, or $18.85 a month billed annually, read from the Mangools pricing page on 14 July 2026.
Mangools is five small tools sold as one subscription, and KWFinder is the reason to buy it. Usability scores 9.1, the highest here. At $18.85 a month billed annually it costs less than a fifth of Semrush, and for a solo operator doing keyword research that is the correct trade.
Data quality scores 6.6, the lowest in this comparison. The keyword database is smaller, and backlink data is resold from Majestic rather than crawled.
Wrong for agencies defending numbers to a client. Reviewers across four separate pools treat the volumes as directional rather than decision-grade. One on Software Advice wrote: "I don't really trust the keyword volumes to be honest, as they seem to use the volumes from Google's Keyword Planner." The lookup quota also runs on a rolling 24-hour clock from your first query rather than resetting at midnight, which a G2 reviewer flagged as a practical limit: "a day doesn't start at midnight. It starts from the first query." Tracked keywords cap at 1,500.
Best for: Solo operators who want cheap keyword research
What to look for in an SEO tool
- Keyword and backlink data depth and accuracy, the engine everything else runs on.
- Rank tracking you can trust day to day, not just on launch day.
- A technical site auditor that catches real regressions, not just cosmetic warnings.
- Competitor and gap analysis, so you can see where a site is losing ground.
- Price per seat and project limits, since the bill climbs fast once a team and its keyword volume grow.
Match that list to the work you actually do. An agency tracking two thousand keywords across thirty clients is buying capacity, and the per-seat line is where the bill escapes. A blogger publishing twice a month is buying keyword research, and the rest of the invoice is waste. The most expensive mistake in this category is paying for breadth nobody opens, which is why the two comparisons most people need are Semrush against Moz for the mid-market and Semrush against Mangools for the bottom of it. Weighing capacity instead of breadth, our SE Ranking and Semrush comparison runs the tracked-keyword maths tier by tier.
Two alternatives sit either side of Ahrefs and they are not equivalent trades. BrightEdge vs Ahrefs weighs an enterprise contract averaging around $50,000 a year that buys workflow and reporting rather than better link data, while Ubersuggest vs Ahrefs weighs a $12-a-month plan that runs on a licensed link index and caps you at 150 searches a day.
Where the AI features actually sit
Every tool here now sells something AI-shaped, and the pricing is where the real difference shows. Moz bundles it: the $99 Standard plan includes an AI visibility dashboard, 50 tracked prompts and coverage of four models, read from moz.com on 8 September 2026. SE Ranking includes prompt tracking on its base plans but puts tracking across ChatGPT, Perplexity and AI Mode behind a $71.20 a month add-on. Ahrefs charges separately for Brand Radar from $199 a month, which costs more than its own entry plan.
If AI visibility is the actual job rather than a bonus, a general SEO suite is the wrong shape of purchase and a dedicated tracker does it better. We cover those separately in our ranked guide to AI visibility tools, which scores Profound, Peec AI, AthenaHQ and the rest on the same rubric used here.
How this comparison is decided
Every tool is scored on the same five parts: data quality, feature depth, usability, value and support. We settle the order on merit first and check which tools have affiliate programs second. Ahrefs ranks second and pays us nothing; SE Ranking and Mangools pay us nothing either. Read the full method and how each score is derived on our how we test and score page, the wider story on our about page, and how we make money on our disclosure page. If you run a local business, the fundamentals earn more than any tool here: start with our local SEO guide for small business.
The wrong-for lines are not vendor positioning turned around. Each one comes from complaints that recur across more than one independent review pool, checked in September 2026, and each is attributed in the tool's section above. Where a vendor's own terms confirm the complaint, we quote the terms instead of a reviewer.
A note on the scores: these are our editorial ratings on a fixed five-part rubric, built from official documentation, live pricing and publicly available user reviews. We have not run these tools on paid plans, and we attribute every figure to its source and date.
Frequently asked questions
What should I look for in an SEO tool?
The things that matter most are the size and accuracy of the keyword and backlink databases, rank tracking you can trust day to day, a technical site auditor, and competitor analysis, weighed against price per seat and project limits. Match the toolset to the work you actually do rather than to the longest feature list.
Do I really need a paid SEO tool?
For the basics, meaning indexing, core errors and your own performance, free tools like Google Search Console go a long way. You start paying for what they cannot give you: large keyword databases, competitor and backlink data, and rank tracking at scale. If SEO drives revenue, a paid tool usually pays for itself; if it is an occasional task, start free.
How does Stackmerit choose and score SEO tools?
We score every tool in the category on the same five-part rubric: data quality, feature depth, usability, value and support. We build each review from each tool's official documentation and live pricing, checked and dated, and from publicly available user reviews. The score is our editorial judgement on that rubric.
Are your SEO tool rankings affected by affiliate commissions?
No. We decide the order on merit first and check which tools have affiliate programs second. A higher commission never moves a tool up the list. Ahrefs ranks second here and pays us nothing, and neither do SE Ranking or Mangools.
How do you review SEO software before buying?
Start a free trial and run the same real task in each tool, a keyword research project or a site audit, rather than trusting the feature list. Check the keyword and backlink database size against a term you already know, confirm rank tracking matches reality for a page you own, and add up the price per seat and project limits for your actual volume. Read the refund terms before you enter a card: several tools in this comparison do not refund a monthly plan once it converts.