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Ahrefs vs Keyword Insights

Ahrefs logo

Ahrefs

Marketing

Backlink and keyword research platform run on its own web crawler, metered by credits since 2024

From
Free
Rated
-
Full reviewWebsite
Keyword Insights logo

Keyword Insights

SEO

AI keyword clustering tool that groups keywords by live SERP overlap

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Ahrefs has a free tier, so it costs nothing to try first.
  • Each has a real cost: Ahrefs the April 2024 move from unlimited usage to credits was a real downgrade for existing customers: Lite meters 1,000 credits per user per month and the data tools lock when they are gone, so heavy research on the entry plan now forces an upgrade to Standard at 249 USD.; Keyword Insights it has no keyword research or search volume data of its own; keywords must be exported from another tool such as Ahrefs or Search Console first.
  • They diverge on capability: Ahrefs covers Site Explorer, Keyword Insights covers SERP-based clustering.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Ahrefs and Keyword Insights actually diverge.

Attributes where Ahrefs and Keyword Insights differ
AttributeAhrefsKeyword Insights
Starting priceFreeOn request
Pricing modelPer month by credits and usage limitsPer month by credit volume, with pay-as-you-go available
Free tierYesNo
CategoryMarketingSEO
Founded2010Unknown

Identical on both: platforms (Web), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Ahrefs

  • Site Explorer
  • Keywords Explorer
  • Site Audit
  • Rank Tracker
  • Content Explorer
  • Competitive analysis
  • Backlink checker
  • Keyword research

Only in Keyword Insights

  • SERP-based clustering
  • Intent classification
  • Content brief generation
  • Bulk keyword upload
  • Pay-as-you-go credits
  • Competitor content gap analysis

What people use each for

The jobs each tool is most often brought in to do.

Ahrefs

  • SEO researchnot Keyword Insights
  • Competitor analysisnot Keyword Insights
  • Content planningnot Keyword Insights
  • Backlink analysisnot Keyword Insights
  • Rank trackingnot Keyword Insights

Keyword Insights

  • A content team building topic clusters for a content calendar from a large exported keyword listnot Ahrefs
  • An agency needing intent classification to decide whether a keyword warrants a blog post or a product pagenot Ahrefs
  • A team that wants SERP-reality clustering rather than word-embedding-based grouping that can miss what Google actually treats as one topicnot Ahrefs
  • A one-off project needing to cluster a single large keyword export without committing to a monthly subscriptionnot Ahrefs

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Ahrefs

  • The April 2024 move from unlimited usage to credits was a real downgrade for existing customers: Lite meters 1,000 credits per user per month and the data tools lock when they are gone, so heavy research on the entry plan now forces an upgrade to Standard at 249 USD.
  • Pay-as-you-go credits are charged automatically once enabled, so a busy research month can produce an unbudgeted overage bill rather than a hard stop.
  • Every paid tier includes exactly one user, and additional seats cost 40, 60 or 80 USD a month by tier, so a three-person team on Standard pays 369 USD a month rather than 249.
  • Row caps bind before credit caps for many jobs: Lite returns at most 2,500 rows per report, which is not enough to export a mid-sized site backlink profile in one pass.
  • Ahrefs states plainly that it never runs discounts and offers no free trial of the paid plans, so evaluation means paying a full month or working from the ownership-verified free tier.
  • Rank Tracker updates weekly on every tier including Enterprise, so teams needing daily positions have to buy a separate tracker such as SE Ranking or Semrush.
  • A growing share of capability is sold as add-ons rather than included: Report Builder at 99 USD a month, Content Kit from 99 USD, Project Boost at 20 or 200 USD per project, and Brand Radar from 199 USD.

Keyword Insights

  • It has no keyword research or search volume data of its own; keywords must be exported from another tool such as Ahrefs or Search Console first.
  • SERP-based clustering requires a live Google SERP pull per keyword, which is why it is credit-metered and can get expensive fast on very large keyword lists.
  • The pay-as-you-go credit tier only covers clustering; content briefs and other features require a full subscription, which is easy to miss when comparing the entry price.
  • It has no rank tracking, backlink data or technical crawling, so it is a single-purpose tool that must sit alongside a broader SEO stack.
  • As a small, specialised vendor, its roadmap and support resourcing are thinner than a full suite like Semrush that bundles clustering as one feature among many.

Pricing, plan by plan

Ahrefs

Free
  • Ahrefs FreeFree
    • Limited Site Explorer and Site Audit for sites you verify ownership of
    • No access to competitor data
    • Where paid subscriptions land after cancellation
  • Starter$29/month
    • Search and competitor data with reduced row limits
    • No projects tier of the main plan ladder
    • Sits below Lite on the published pricing page
  • Lite$129/month
    • 1 user included, up to 2 more at 40 USD each per month
    • 1,000 credits per user per month, the only tier with a credit cap
    • 5 projects, 750 tracked keywords, 6 months of historical data
  • Standard$249/month
    • 1 user included, up to 5 more at 60 USD each per month
    • Unlimited report credits under fair use
    • 20 projects, 2,000 tracked keywords, 2 years of historical data

Keyword Insights

On request
  • Basic$58/month
    • 10,000 credits a month
    • Keyword clustering and intent classification
    • Content brief generation
  • Professional$99/month
    • 20,000 credits a month
    • All Basic features
    • Higher project and export limits
  • Pay As You Go$7.99/month
    • 1,000 clustering-only credits, no subscription required
    • 7-day trial available for 1 US dollar
    • Other features require a subscription plan

Which should you pick?

Choose Ahrefs if

  • You need site explorer.
  • You want to start without paying.
  • You also want keywords explorer.
Ahrefs review

Choose Keyword Insights if

  • You need serp-based clustering.
  • You also want intent classification.
Keyword Insights review

Questions people ask

Is Ahrefs or Keyword Insights better?
Neither clearly leads. Ahrefs starts at Free and Keyword Insights at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ahrefs or Keyword Insights?
Ahrefs has a free tier; the other does not. Paid plans start at Free for Ahrefs and On request for Keyword Insights.
Does Ahrefs or Keyword Insights run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Ahrefs for free?
Yes. Ahrefs has a free tier, so you can try it without paying. Keyword Insights starts at On request.
What is Ahrefs best used for?
Ahrefs is most often used for seo research, competitor analysis, content planning, backlink analysis. Of those, seo research and competitor analysis are not what Keyword Insights is typically brought in for.
What can Ahrefs do that Keyword Insights cannot?
Ahrefs covers Site Explorer, Keywords Explorer, Site Audit, Rank Tracker. Keyword Insights covers SERP-based clustering, Intent classification, Content brief generation, Bulk keyword upload.

Answered from the vendors’ own pages

Ahrefs: How much does Ahrefs cost?

Starter is 29 USD a month, Lite 129, Standard 249, Advanced 449 and Enterprise 1,499 with an annual commitment. Paying annually saves up to 17 percent, which Ahrefs describes as two months free, and it is arranged through support rather than on the site.

Keyword Insights: Do I need another SEO tool to use it?

Yes, for keyword data. Keyword Insights clusters and classifies keyword lists you supply; it does not generate keyword lists with search volume itself.

Ahrefs: What are Ahrefs credits and when did they start?

Ahrefs replaced unlimited report usage with credits in April 2024. It meters report credits, crawl credits and API units. Lite includes 1,000 credits per user per month; Standard and above are unlimited under a fair use policy. Purchased pay-as-you-go credits last three billing months.

Keyword Insights: How is pricing calculated?

By credits, at 1 credit per keyword clustered, either through a monthly subscription with a credit allowance or a pay-as-you-go top-up.

Ahrefs: Is Ahrefs or Moz better?

Ahrefs has the deeper and fresher link index and stronger competitive research, and it is the default for link work. Moz is cheaper at entry, owns Domain Authority as a reportable metric, and has a real local listings product. If you report DA to clients or manage multi-location listings, Moz earns its place; otherwise Ahrefs wins on data.

Keyword Insights: Is there a free tier?

No permanent free tier; a 7-day trial for 1 US dollar is offered instead.

Ahrefs: Is there a free version or a trial?

There is Ahrefs Free, limited to Site Explorer and Site Audit on sites you verify you own, so it gives you no competitor data. Ahrefs states it never runs discounts and does not offer a trial of the paid plans.

Ahrefs: How many users are included?

One, on every paid tier up to Advanced. Extra seats cost 40 USD a month on Lite, 60 on Standard, 80 on Advanced and 100 on Enterprise, and unpaid additional users are billed automatically as pay-as-you-go.

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