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SEO · head to head

AnswerThePublic vs Lighthouse

AnswerThePublic logo

AnswerThePublic

SEO

Keyword and content ideation tool that visualizes search questions and phrases

From
$20/month
Rated
-
Full reviewWebsite
Lighthouse logo

Lighthouse

SEO

Audit web page performance and quality

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Lighthouse has a free tier, so it costs nothing to try first.
  • Each has a real cost: AnswerThePublic credit-based limits on projects and articles mean heavy users need the higher-priced Growth or Business tiers.; Lighthouse performance scores vary significantly due to A/B testing, device differences, browser extensions, and antivirus software affecting results
  • They diverge on capability: AnswerThePublic covers Search listening visualizations, Lighthouse covers Performance scoring.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which AnswerThePublic and Lighthouse actually diverge.

Attributes where AnswerThePublic and Lighthouse differ
AttributeAnswerThePublicLighthouse
Starting price$20/monthFree
Pricing modelsubscriptionfree
Free tierNoYes
PlatformswebChrome, Edge
FoundedUnknown1998

Identical on both: 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 AnswerThePublic

  • Search listening visualizations
  • AI content drafting
  • Content scheduling
  • Plagiarism detection
  • WordPress publishing
  • Custom writing styles

Only in Lighthouse

  • Performance scoring
  • Accessibility audit
  • SEO check
  • PWA validation
  • Chrome support
  • Edge support

What people use each for

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

AnswerThePublic

  • Finding long-tail question keywords for blog topicsnot Lighthouse
  • Building FAQ content from real search queriesnot Lighthouse
  • PR and content teams brainstorming article anglesnot Lighthouse
  • Identifying content gaps around a seed topicnot Lighthouse

Lighthouse

  • Performance auditing to identify page loading speed improvementsnot AnswerThePublic
  • Accessibility compliance checking for users with disabilitiesnot AnswerThePublic
  • SEO optimization verification for search engine compatibilitynot AnswerThePublic
  • Security and best practices scanning for code healthnot AnswerThePublic
  • Progressive web app validation and CI/CD pipeline integrationnot AnswerThePublic

Where each one falls short

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

AnswerThePublic

  • Credit-based limits on projects and articles mean heavy users need the higher-priced Growth or Business tiers.
  • Question-mining approach is narrower than full-suite SEO content tools that also grade content against SERP competitors.
  • Article and content-creation features are relatively new additions layered onto a keyword-visualization tool, so depth may lag dedicated writing platforms.

Lighthouse

  • Performance scores vary significantly due to A/B testing, device differences, browser extensions, and antivirus software affecting results
  • Limited to metrics that contribute to scores; Opportunities and Diagnostics don't directly impact scoring
  • Diminishing returns above 0.96 score, making perfect 100 scores extremely challenging
  • Scores based on HTTP Archive data which may not reflect all performance scenarios

Pricing, plan by plan

AnswerThePublic

$20/month
  • Starter$20/month
    • 2 projects
    • 60 monthly credits
    • 6 articles/month
  • Growth$99/month
    • 4 projects
    • 350 monthly credits
    • 35 articles/month
  • Business$199/month
    • 8 projects
    • 800 monthly credits
    • 80 articles/month

Lighthouse

Free
  • FreeFree
    • Performance audit
    • Accessibility check
    • SEO analysis

Which should you pick?

Choose AnswerThePublic if

  • You need search listening visualizations.
  • You work on web.
  • You also want ai content drafting.
AnswerThePublic review

Choose Lighthouse if

  • You need performance scoring.
  • You want to start without paying.
  • You work on Chrome, Edge.
  • You also want accessibility audit.
Lighthouse review

Questions people ask

Is AnswerThePublic or Lighthouse better?
Neither clearly leads. AnswerThePublic starts at $20/month and Lighthouse at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AnswerThePublic or Lighthouse?
Lighthouse has a free tier; the other does not. Paid plans start at $20/month for AnswerThePublic and Free for Lighthouse.
Does AnswerThePublic or Lighthouse run on more platforms?
AnswerThePublic runs on web. Lighthouse runs on Chrome, Edge.
Can I use Lighthouse for free?
Yes. Lighthouse has a free tier, so you can try it without paying. AnswerThePublic starts at $20/month.
What is AnswerThePublic best used for?
AnswerThePublic is most often used for finding long-tail question keywords for blog topics, building faq content from real search queries, pr and content teams brainstorming article angles, identifying content gaps around a seed topic. Of those, finding long-tail question keywords for blog topics and building faq content from real search queries are not what Lighthouse is typically brought in for.
What can AnswerThePublic do that Lighthouse cannot?
AnswerThePublic covers Search listening visualizations, AI content drafting, Content scheduling, Plagiarism detection. Lighthouse covers Performance scoring, Accessibility audit, SEO check, PWA validation.

Answered from the vendors’ own pages

AnswerThePublic: What does AnswerThePublic cost?

Plans run Starter at $20/month, Growth at $99/month, and Business at $199/month, each with monthly credits, project limits, and an article-generation cap; annual and lifetime options are also offered.

Source
Lighthouse: Is Lighthouse free?

Yes. Lighthouse is completely free and open-source. It is developed by Google and integrated into Chrome DevTools, PageSpeed Insights, and available as a command-line tool. There are no licensing fees or premium tiers.

Source
AnswerThePublic: Is there a free plan?

No free tier is listed; all plans are paid, with Starter as the entry-level option at $20/month or a $99 lifetime option.

Source
Lighthouse: Can I run Lighthouse offline?

Yes. Lighthouse can run offline in multiple ways: through Chrome DevTools (built into Chrome), as a command-line tool (Node.js), or as a Node.js module integrated into your build process. You do not need an internet connection after installing the tool.

Source
AnswerThePublic: What does AnswerThePublic integrate with?

All plans include WordPress publishing so finished articles can be pushed directly to a connected WordPress site.

Source
Lighthouse: What pages can Lighthouse audit?

Lighthouse can audit any web page, including pages that require authentication. This is an advantage over some alternative tools that cannot test behind login screens. You can run audits on public pages or authenticated pages via command-line with custom headers.

Source
Lighthouse: Can Lighthouse prevent performance regression during development?

Yes. Lighthouse CI is available to prevent performance degradation during development cycles. You can integrate Lighthouse CI into your continuous integration pipeline to automatically audit pages on every commit and fail builds if performance metrics fall below thresholds you define.

Source
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