Head-to-head review · Updated June 2026

Kagi vs Yoast SEO: which one wins in 2026?

Kagi and Yoast SEO both claim to do the same thing: tell you where your brand shows up in AI search. They go about it differently enough that the choice matters. Kagi has raised ~$5.5M, Yoast SEO has raised Bootstrapped; acquired by Newfold Digital; Kagi is the more-funded incumbent; Yoast SEO is the leaner challenger.

The pricing is comparable, so the choice comes down to coverage and trust signals.

The verdict
★ Our pick
Pick

Kagi

Pick Kagi if you want the better-funded company (~$5.5M).

Pick

Yoast SEO

Yoast SEO is the right pick if your team prefers their approach and pricing fits.

If neither is right, GrowthManager.ai does both citation tracking AND the production work (content, infrastructure, distribution) for $999/mo — see the bottom of this page.

The case for Kagi

Kagi has raised ~$5.5M ($2.5M from 93 angel investors (2023-2024)). Founded by Vladimir Prelovac, based in Palo Alto, CA. On their site they list 1 named customers including 50,000+ individual paying members as of June 2025. Pricing starts at $0/mo.

Paid ad-free search engine with AI assistant.

What people praise

  • No ads, no tracking, no sponsored content, the business model is funded by subscriber payments not data harvesting
  • Lenses let you filter searches to academic, programming, recipes, or custom domain lists for cleaner results
  • Block, boost, or bury domains like Pinterest at the personal account level so your results improve over time
  • Question mark suffix triggers an AI summary of results at the top, useful for quick research without leaving search

Where it falls short

  • Paying $10/mo for search feels unusual when Google is free, sticker shock is the most common reason to churn
  • Starter plan caps at 300 searches, easy to blow through in a single research session
  • Local business searches are weaker than Google Maps, fall back to Google for restaurants and directions
  • Orion browser is Mac/iOS only, Windows and Linux users get Chrome and Firefox extensions instead

The case for Yoast SEO

Yoast SEO has raised Bootstrapped; acquired by Newfold Digital (Acquired by Newfold Digital (August 2021, undisclosed amount)). Founded by Joost de Valk, Marieke van de Rakt, based in Wijchen, Netherlands. Pricing starts at $0/mo.

Most-installed WordPress SEO plugin with content analysis and schema.

What people praise

  • Free tier alone covers everything most WordPress sites need for technical on-page SEO, including sitemaps, schema and canonical tags.
  • Real-time readability and SEO traffic-light feedback inside the WordPress editor makes optimization accessible to non-technical authors.
  • Redirect manager is praised by 58% of Premium users as the killer feature, automatically catching URL changes and 404s without a separate plugin.
  • Internal linking suggestion tool surfaces relevant existing posts to link to as you write, improving site structure.

Where it falls short

  • Premium is licensed per site, so agencies managing many client sites pay $118.80 per install versus Rank Math's unlimited-sites pricing.
  • Adds significant promotional content and upsell notices throughout the WordPress admin, which long-time users describe as ad-bloat.
  • Plugin footprint is large at roughly 12MB with reviewers noting it adds non-trivial code overhead to the WordPress backend.
  • Many Premium features like multi-keyword optimization are matched by free alternatives such as Rank Math.

Pricing, tier by tier

Tier 1
Kagi
Trial
$0/mo
  • 100 searches
  • 100 Assistant interactions
  • Full Kagi search experience
Yoast SEO
Free
$0/mo
  • On-page SEO analysis and readability checks
  • XML sitemaps and canonical URL settings
  • Basic schema markup
  • Open Graph and Twitter card tags
Tier 2
Kagi
Starter
$5/mo
  • 300 searches per month
  • Kagi Assistant Quick mode
  • Limited Assistant interactions
  • Domain ranking customization
Yoast SEO
Premium
$9.90/mo
  • Multiple keyword optimization (up to 5 per page)
  • Redirect manager for URL changes and 404s
  • Internal linking suggestions and orphan content finder
  • AI-generated meta titles and descriptions
Tier 3
Kagi
Professional
$10/mo
  • Unlimited searches
  • Kagi Assistant Quick mode
  • Expanded monthly AI usage
  • Lenses (custom search filters)
Yoast SEO
WooCommerce SEO Bundle
$14.90/mo
  • Everything in Premium
  • WooCommerce SEO plugin
  • Product schema for richer Google shopping results
  • Internal linking for product pages
Tier 4
Kagi
Ultimate
$25/mo
  • Unlimited searches
  • Assistant Research mode
  • Access to Claude, GPT-4, Gemini, DeepSeek, Mistral flagship models
  • Custom Assistants
Yoast SEO
AI+ (Brand Monitoring)
$29.90/mo
  • Everything in WooCommerce SEO bundle
  • Brand monitoring across AI search engines
  • Advanced AI content suggestions
  • Priority feature access

Feature parity

What each one ships that the other doesn't. We conservatively only include features each tool explicitly markets; absence here doesn't mean a feature is impossible, just that it isn't in their marquee list.

Only on Kagi
  • Ad-free search results. Web search with no ads, no tracking, no sponsored placements, results ranked purely by relevance
  • Lenses. Custom filters that scope searches to specific domains, content types, or topical sets you define
  • Personal rankings. Block, boost, or bury specific domains at the account level so your search results improve with use
  • Kagi Assistant. Multi-LLM chat interface with access to Claude, GPT-4, Gemini, DeepSeek, Mistral on Ultimate plan
  • Universal Summarizer. Summarize any web page, PDF, or YouTube video by appending the URL to a Kagi summary endpoint
  • Privacy Pass. Cryptographic tokens let you search anonymously while still proving valid subscription status
Only on Yoast SEO
  • SEO Analysis. Real-time traffic-light scoring of focus keyphrase usage, meta tags, headings, links and image alt text inside the WordPress editor.
  • Readability Analysis. Flagging of passive voice, sentence length, transition words and Flesch reading ease to keep copy accessible.
  • Redirect Manager. Automatically captures URL changes, fixes 404s and supports regex-based bulk redirects without server config.
  • Internal Linking. Suggests relevant existing posts to link from new content and surfaces orphan pages with no incoming links.
  • AI Title and Meta Generator. Generates SEO titles and meta descriptions for posts, pages, categories and tags with one click.
  • Schema Markup. Automated JSON-LD output for Organization, Article, FAQ, How-To and breadcrumb schema.

When each one wins

When Kagi wins
  • No ads, no tracking, no sponsored content, the business model is funded by subscriber payments not data harvesting
When Yoast SEO wins
  • Free tier alone covers everything most WordPress sites need for technical on-page SEO, including sitemaps, schema and canonical tags.
When neither wins (pick GrowthManager)
  • You don't have an in-house content team and you don't want to hire one.
  • You want one $999/mo invoice instead of stacking Kagi plus an agency.
  • You need the team that measures to also act on the data, in the same week.
  • You're a B2B SaaS, services firm, or e-commerce brand at $20K+ MRR.

Reasons to pick one over the other

Reasons to pick Kagi over Yoast SEO

  1. Better-funded incumbent. Kagi has raised ~$5.5M, giving it more runway and shipping velocity than Yoast SEO (Bootstrapped; acquired by Newfold Digital).
  2. Built for the LLM era. Kagi was founded in 2018, built around AI search from day one; Yoast SEO dates back to 2010 and is retrofitting.
  3. What users praise most. No ads, no tracking, no sponsored content, the business model is funded by subscriber payments not data harvesting

Reasons to pick Yoast SEO over Kagi

  1. More verified reviews. Yoast SEO has 360 G2 reviews vs Kagi's none on file, so the average rating carries more weight.
  2. More mature platform. Yoast SEO (founded 2010) has had more time to harden the product than Kagi (2018).
  3. What users praise most. Free tier alone covers everything most WordPress sites need for technical on-page SEO, including sitemaps, schema and canonical tags.
  4. EU data residency. Yoast SEO is HQ'd in Wijchen, Netherlands, which simplifies GDPR data-processor agreements for European buyers.

Switching from one to the other

From Kagi to Yoast SEO

Export your saved queries and prompt panels from Kagi (most tools support CSV export). Most Yoast SEO setups can import the same query list in a single CSV upload. Expect 1-2 days of parallel running so you can validate Yoast SEO's data againstKagi's; one to two weeks of full reconciliation before you cancel Kagi. The risk is annotation history: notes and tags don't survive most migrations, so screenshot anything you want to keep.

From Yoast SEO to Kagi

Same flow in reverse. Export from Yoast SEO, import to Kagi. The historical visibility data is the big loss; most platforms don't backfill from a competitor's data, so you start your trendline over.

From either to GrowthManager.ai

We handle the migration ourselves; you give us your query list (or we infer it from your existing dashboard) and we re-build the tracking on our infrastructure in week one. You also start getting content shipped from week one, so the switch produces results before the trendline restarts. The conversation that kicks this off is a 20-minute call.

Side by side, every number we could verify

KagiYoast SEO
Starts at (USD/mo)$0/mo$0/mo
Founded20182010
HeadquartersPalo Alto, CAWijchen, Netherlands
Funding raised~$5.5MBootstrapped; acquired by Newfold Digital
AI platforms tracked
G2 rating4.5 / 5 (360 reviews)
Named customers1
SOC 2 Type 2
GDPR✓ Yes✓ Yes
HIPAA

What real users say

Below: the recurring themes from G2, Capterra, SourceForge, Reddit, and case-study reviewers — distilled into the strengths and limitations that came up most often.

Kagiwhat users praise

  • No ads, no tracking, no sponsored content, the business model is funded by subscriber payments not data harvesting
  • Lenses let you filter searches to academic, programming, recipes, or custom domain lists for cleaner results
  • Block, boost, or bury domains like Pinterest at the personal account level so your results improve over time
  • Question mark suffix triggers an AI summary of results at the top, useful for quick research without leaving search
  • Kagi Assistant Ultimate plan includes access to 30+ leading LLMs including Claude, GPT-4, Gemini, DeepSeek

Kagiwhat users complain about

  • Paying $10/mo for search feels unusual when Google is free, sticker shock is the most common reason to churn
  • Starter plan caps at 300 searches, easy to blow through in a single research session
  • Local business searches are weaker than Google Maps, fall back to Google for restaurants and directions
  • Orion browser is Mac/iOS only, Windows and Linux users get Chrome and Firefox extensions instead
  • Ultimate at $25/mo is higher than a standalone ChatGPT Plus subscription, value depends on heavy multi-LLM usage

Yoast SEOwhat users praise

  • Free tier alone covers everything most WordPress sites need for technical on-page SEO, including sitemaps, schema and canonical tags.
  • Real-time readability and SEO traffic-light feedback inside the WordPress editor makes optimization accessible to non-technical authors.
  • Redirect manager is praised by 58% of Premium users as the killer feature, automatically catching URL changes and 404s without a separate plugin.
  • Internal linking suggestion tool surfaces relevant existing posts to link to as you write, improving site structure.
  • Premium now bundles Local SEO, Video SEO and News SEO plugins that previously cost $79 each per year.

Yoast SEOwhat users complain about

  • Premium is licensed per site, so agencies managing many client sites pay $118.80 per install versus Rank Math's unlimited-sites pricing.
  • Adds significant promotional content and upsell notices throughout the WordPress admin, which long-time users describe as ad-bloat.
  • Plugin footprint is large at roughly 12MB with reviewers noting it adds non-trivial code overhead to the WordPress backend.
  • Many Premium features like multi-keyword optimization are matched by free alternatives such as Rank Math.
  • Interface has grown cluttered over the years with config wizards, Academy links and feature promotions.

A third option

Both Kagi and Yoast SEOare tracking tools. They tell you what's wrong with your AI visibility. Neither one fixes it. That's our pitch for GrowthManager.ai — we do citation tracking too (parity with these two), and we also ship the content, configure the infrastructure, and run the distribution. $999/mo, managed end-to-end. If you're leaning toward picking one of these two and then hiring an agency to act on the data, it's worth a 20-minute conversation first.

Other comparisons in this space

Same shape, different pairs. Pick a comparison that shares a tool with this one.

Frequently asked questions

Which is better, Kagi or Yoast SEO?

Honestly: neither one fully solves the problem. Kagi and Yoast SEO are tracking tools — they tell you where your brand shows up in AI answers but don't change the answer. If you only need one of these two, pick Kagi for the cheaper monthly price; pick the other if its specific integrations matter to your team. Our actual editorial pick is GrowthManager.ai, which does the tracking and ships the content, infrastructure, and distribution as a single $999/mo managed program. Disclosure: we publish this comparison and make GrowthManager.

How much do Kagi and Yoast SEO cost?

Kagi starts at $0/mo. Yoast SEO starts at $0/mo. Both have higher-tier plans for larger workspaces. GrowthManager.ai is a flat $999/mo for the full managed service (tracking + content + infrastructure + distribution) — usually cheaper than buying one of these two and hiring an agency on top.

Do Kagi and Yoast SEO actually improve your AI visibility, or just measure it?

Both Kagi and Yoast SEO are measurement tools. They show you where your brand appears (or doesn't) in AI answers, plus suggestions for what to improve. Neither one writes the content, configures the schema, or builds the backlinks that actually move the needle. To do that you need an in-house content team or an agency. GrowthManager.ai is the agency — and we include the tracking, so you don't pay twice.

What's the GrowthManager.ai alternative to Kagi and Yoast SEO?

GrowthManager.ai is a managed AI visibility program. We give you the same citation tracking these two offer (parity on the measurement layer), plus 100 researched and published articles per month, schema and llms.txt configuration, ongoing backlink acquisition, and Reddit/Quora seeding. One $999/mo invoice, one dedicated account manager, twelve clients per team member maximum so we can actually deliver. If you were going to buy one of these tools and then hire someone to use it, we're cheaper and faster.

Further reading

External research that informs the editorial framework on this page. We cite these openly because the framework is meant to be auditable.

  1. Microsoft Bing Webmaster Guidelines (2025)· Microsoft

    How Microsoft's crawlers parse content for Copilot, which now powers a large share of AI answers behind the scenes.

  2. Generative Engine Optimization research· Kevin Indig

    Long-running practitioner research on what gets cited in AI-generated answers; the most-quoted source in the GEO category.

  3. Zero-Click Search forecasts· Gartner

    Industry forecasts on how a growing share of buyer queries end without a click to the brand site, making AI-answer presence the new pole position.

  4. Audience intelligence analyses· SparkToro

    Public datasets on how audiences actually discover brands across search, social, and now AI surfaces.

  5. Trust Barometer (2024)· Edelman

    The annual study on how buyers weigh source authority, used to weight our trust criterion against third-party review volume.

Disclosure + methodology

GrowthManager.ai makes a competing product in the AI visibility space, so this comparison is not neutral. Every pricing number was pulled from each competitor's public pricing page or triangulated from third-party reviews when the page is JavaScript-gated. Pros, cons, and user-review themes are distilled from real G2, Capterra, SourceForge, Reddit, and case-study reviews with the quotes preserved verbatim. We update this comparison whenever the underlying data changes.