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Keyword Insights vs Yoast SEO

Keyword Insights logo

Keyword Insights

SEO

AI keyword clustering tool that groups keywords by live SERP overlap

From
On request
Rated
-
Full reviewWebsite
Yoast SEO logo

Yoast SEO

SEO

The longest-established WordPress SEO plugin, free core with a flat-rate Premium tier

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Yoast SEO has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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.; Yoast SEO premium is licensed per site, so an agency or publisher managing many WordPress installs pays linearly per site with no volume discount tier published, unlike Rank Math's site-count-bundled plans.
  • They diverge on capability: Keyword Insights covers SERP-based clustering, Yoast SEO covers Readability and SEO analysis.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Keyword Insights and Yoast SEO actually diverge.

Attributes where Keyword Insights and Yoast SEO differ
AttributeKeyword InsightsYoast SEO
Starting priceOn requestFree
Pricing modelPer month by credit volume, with pay-as-you-go availableFreemium, per site per year
Free tierNoYes

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

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 Keyword Insights

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

Only in Yoast SEO

  • Readability and SEO analysis
  • Redirect manager
  • Multi-keyphrase optimisation
  • Bundled add-ons
  • AI-assisted metadata
  • Google Docs add-on

What people use each for

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

Keyword Insights

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

Yoast SEO

  • A WordPress site owner who wants a predictable flat annual price with no renewal surprise, unlike some competitor pricing patternsnot Keyword Insights
  • A multi-site publisher needing Local, Video and News SEO functionality bundled rather than bought as three separate add-onsnot Keyword Insights
  • A small blog that can run indefinitely on the free tier without hitting a feature wall that forces an upgradenot Keyword Insights
  • A content team wanting AI-assisted bulk metadata generation to clear a backlog of missing titles and descriptionsnot Keyword Insights

Where each one falls short

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

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.

Yoast SEO

  • Premium is licensed per site, so an agency or publisher managing many WordPress installs pays linearly per site with no volume discount tier published, unlike Rank Math's site-count-bundled plans.
  • The free tier's schema output is more basic than Rank Math's free tier, which ships more predefined schema types at no cost.
  • There is no rank tracking feature at all, free or paid, so any team wanting to monitor rankings needs an entirely separate tool regardless of Yoast tier.
  • Some previously free features have migrated behind Premium over successive releases, so long-time users have seen the free-to-paid boundary move against them.
  • The AI-assisted content and metadata features are newer additions and reviewers note they are less mature than dedicated AI content tools such as Surfer SEO or Frase.

Pricing, plan by plan

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

Yoast SEO

Free
  • FreeFree
    • SEO and readability analysis
    • XML sitemaps and basic schema output
    • Google Search Console integration
  • Premium$118.8/year
    • Flat rate with no renewal price increase, per site
    • Redirect manager and multi-keyphrase optimisation
    • Local, Video and News SEO plugins included

Which should you pick?

Choose Keyword Insights if

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

Choose Yoast SEO if

  • You need readability and seo analysis.
  • You want to start without paying.
  • You also want redirect manager.
Yoast SEO review

Questions people ask

Is Keyword Insights or Yoast SEO better?
Neither clearly leads. Keyword Insights starts at On request and Yoast SEO at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keyword Insights or Yoast SEO?
Yoast SEO has a free tier; the other does not. Paid plans start at On request for Keyword Insights and Free for Yoast SEO.
Does Keyword Insights or Yoast SEO run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Yoast SEO for free?
Yes. Yoast SEO has a free tier, so you can try it without paying. Keyword Insights starts at On request.
What is Keyword Insights best used for?
Keyword Insights is most often used for a content team building topic clusters for a content calendar from a large exported keyword list, an agency needing intent classification to decide whether a keyword warrants a blog post or a product page, a team that wants serp-reality clustering rather than word-embedding-based grouping that can miss what google actually treats as one topic, a one-off project needing to cluster a single large keyword export without committing to a monthly subscription. Of those, a content team building topic clusters for a content calendar from a large exported keyword list and an agency needing intent classification to decide whether a keyword warrants a blog post or a product page are not what Yoast SEO is typically brought in for.
What can Keyword Insights do that Yoast SEO cannot?
Keyword Insights covers SERP-based clustering, Intent classification, Content brief generation, Bulk keyword upload. Yoast SEO covers Readability and SEO analysis, Redirect manager, Multi-keyphrase optimisation, Bundled add-ons.

Answered from the vendors’ own pages

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.

Yoast SEO: Does the price go up after the first year?

No. Yoast charges the same flat 118.80 US dollars a year per site every year, unlike some competitors that discount the first year and raise the renewal price.

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.

Yoast SEO: Is the free version usable long-term, or is it a trial?

It is a genuinely usable free tier; many small sites run on it indefinitely without ever needing Premium.

Keyword Insights: Is there a free tier?

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

Yoast SEO: Can one Premium licence cover multiple sites?

No. Premium is licensed per site; multiple sites each need their own licence.

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