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SEO King review (2026): is the free plan enough?

Shopify SEO app with unlimited AI meta text and image optimization

Free plan · from $9.99/moSEO PluginsChecked Oct 23, 2026 · graded Oct 23, 2026 by ToolGPA

Our verdict

Second of our top three SEO plugins and apps

For: Shopify store owners

SEO King scans a Shopify store and lists fixes, edits meta titles, descriptions and alt text, renames and compresses photos, finds broken links and 404s, manages redirects and shows Search Console stats; the free basics have no stated cap. Paid tiers add unlimited AI meta text, robots.txt and llms.txt editing and advanced JSON-LD, from $9.99 every 30 days for 500 pages to $16.99 for 20,000. It is second because it works only on Shopify, the free basics write no AI text, and Vision AI alt text, translation and background removal are paid per use from prepaid credits.

See all three and how we rank

SEO King report card

2.6GPA

Good · out of 4.0 · graded Oct 23, 2026

Best for AI meta text on a Shopify store, priced by page count

SEO King is a Shopify app that scans your store, edits meta tags and alt text, handles images, JSON-LD, redirects and sitemaps, and on paid tiers writes meta text with AI with no credit limit. Paid tiers start at $9.99 every 30 days for 500 pages. But the AI that reads your photos, translation and background removal cost extra from prepaid credits, and it only works on Shopify.

Who SEO King is for

  • Fits if you run a Shopify store and want AI meta text without counting credits
  • Works for large catalogs, since 20,000 pages is $16.99 a month

Who SEO King is not for

  • Skip it if your store isn't on Shopify, as that's the only place it installs
  • Tight if you stay free, because AI text, bulk photo work, robots.txt and llms.txt are all paid
  • Watch out: alt text read from the photo itself is about $1 per 400 photos, and translation and upscaling also use prepaid credits
  • Pricey if you want it done for you, as the Full-Service tier is $95 a month or $595 a year, with no theme work
See the alternatives

Why SEO King gets a 2.6

Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.

  • CValue for money$9.99 every 30 days for up to 500 pages, a little above the $8.25 where this category's cheaper quarter ends. Yearly billing brings it to $69.99, about $5.83 a month, and the 20,000-page tier is $16.99 a month. Vision AI and translation cost extra.
  • BFree plan and trialThe free basics have no stated cap: alt text, meta title and description edits, photo renaming and compression, a store scan and Search Console stats. A small store could run on that. What's missing is any AI text, bulk photo work, robots.txt and llms.txt.
  • BFeaturesStore scans with a fix checklist, image compression, JSON-LD with FAQ markup, image sitemaps, robots.txt and llms.txt, broken links and redirects, rank tracking and SEO text in 40+ languages. Nothing in the listing leaves a gap in the job; tiers differ only in pages covered.
  • CEase of useNo store rating on record. It installs from the Shopify App Store, but you connect Search Console, work through the checklist and choose what the AI rewrites and keeps updated.
  • BPlatforms and integrationsWeb, inside the Shopify admin, with Google Search Console, Google Merchant Center, Easy Watermarks and Swap Photo Editor, and AI writing through MCP. No phone or desktop app, and nothing for stores off Shopify.

What these grades rest on. Graded from this listing, whose facts were read from Engage Apps' own pages and its Shopify App Store listing on 23 October 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.

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Where SEO King stands among SEO plugins and apps

SEO King's GPA of 2.6 is higher than 49 of the 78 other SEO plugins and apps we grade, and level with 10.

It stands best on features (B, above 53 of 78) and worst on ease of use (C, above 0).

Its paid plans start at $9.99 a month, against a middle price of $9.99 for the category: 24 of the 58 others that charge start lower.

On features, ease of use and platforms it scores 2.7 out of 4. 1 tool scores higher and costs less.

Each grade against the category

Every bar is all 79 SEO plugins and apps we grade, cut by the letter each got. SEO King’s own letter is outlined.

  • CValue for moneyAbove 15 of 78, level with 27
  • BFree plan and trialAbove 47 of 78, level with 15
  • BFeaturesAbove 53 of 78, level with 25
  • CEase of useAbove 0 of 78, level with 59
  • BPlatforms and integrationsAbove 31 of 78, level with 47

Price against what you get

Each dot is one of 70 SEO plugins and apps. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.

Features, ease of use and platforms, averaged

D1.0C2.0B3.0A4.0Free$2$5$10$20$50$100$200$500More for lessCosts more, scores moreCosts less, scores lessCosts more, scores lessSEO King

What paid plans start at, a month (each step along is roughly double) →

  • The best score at each price
  • Has a free plan
  • No free plan
The full chart, and the best SEO plugins and apps at every price

Keep SEO King, or make your own?

Keep it

To replace SEO King you would be making search volumes for millions of keywords, gathered and kept up to date. That is not a weekend's work, with an AI app builder or without one.

It costs $119.88 a year.

What you could make

  • Schema markup: an app builder makes this well.

What you could not

  • Search volumes for millions of keywords, gathered and kept up to date.
  • A crawler that checks every page of a site.
  • A score built from what the top results for each keyword cover.
  • Daily checks of where your pages rank in search results.
  • AI features, unless you pay a model provider for each request yourself.
  • The depth: we grade its features B, which means it covers the whole job.

What this rests on. SEO King’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.

What is SEO King?

SEO King is a Shopify app that brings store scans, image optimization, JSON-LD, broken links and redirects, sitemaps, robots.txt and llms.txt editing, and Search Console analytics into one dashboard. Paid plans add unlimited AI writing of meta titles, meta descriptions, alt text and product descriptions, one at a time, in bulk or through MCP. Paid tiers are priced by the number of store pages covered.

Worth knowing

  • Works only on Shopify stores; it is installed from the Shopify App Store.
  • AI text, auto-updating, bulk photo work, robots.txt, llms.txt and advanced JSON-LD all need a paid tier; tiers differ only in pages covered.
  • Vision AI, translation, upscaling and background removal are paid per use from prepaid credits, or by an optional unlimited AI credits plan.
  • A done-for-you Full-Service tier with expert setup and monthly strategy calls costs $95 a month or $595 a year, without theme work.

Key features

Unlimited AI meta text
Paid plans write meta titles, meta descriptions, alt text and product descriptions with GPT and Gemini models, with no credit limit, and can keep them updated.
Image optimization
Compresses, resizes, converts and renames photos without a meter. Vision AI alt text from the photo itself is pay-per-use, about $1 per 400 photos.
Store scan and SEO checklist
Scans the store for SEO issues on every plan and lists fixes in a checklist and dashboard; changes can be previewed before they go live.
JSON-LD, sitemaps and robots.txt
Advanced JSON-LD schemas including FAQ markup, image sitemaps, and robots.txt and llms.txt editing on paid plans.
Keywords and SERP rankings
Google Search Console stats and site keyword analytics on every plan, with SERP rank tracking and a page tracker in the app.
Links, redirects and translation
Finds broken links and 404 errors, manages redirects and URL rewriting, and writes SEO text in more than 40 languages.

SEO King pricing

As of Oct 23, 2026, SEO King has a free plan, and paid plans start at $9.99 per month for up to 500 pages, billed every 30 days.

Starts at
$9.99 per month for up to 500 pages, billed every 30 days
Free plan
Free basics: unlimited alt text, meta title and meta description updates, photo renaming and optimization, a store scan, and Search Console and keyword analytics. No AI text.
Free trial
None listed
Free basics$0Unlimited alt text, meta title and meta description updates, photo renaming and optimization, store scans and Search Console analytics.
500 Pages$9.99per month for up to 500 pages, billed every 30 daysAll features: unlimited AI text, auto-updating, bulk photo optimization, the fast SEO editor, robots.txt, llms.txt and advanced JSON-LD.
5,000 Pages$13.99per month for up to 5,000 pages, billed every 30 daysThe same features as 500 Pages, for stores with up to 5,000 pages.
20,000 Pages$16.99per month for up to 20,000 pages, billed every 30 daysThe same features as 500 Pages, for stores with up to 20,000 pages.

Read from apps.shopify.com on Oct 23, 2026. Prices change, so confirm with SEO King before you buy.

Pricing in detail

Ways to pay less

  • Annual discountSave up to 52% with yearly billing

    The listing offers the 500-page tier at $69.99 a year (42% off), 5,000 pages at $79.99 (52%) and 20,000 pages at $99.99 (51%).

    Stated on apps.shopify.com

Works with

SEO King alternatives

Common questions

Does SEO King have an Android app?

No Android app was listed when its pages were read on Oct 23, 2026. SEO King is listed for Web.

Does SEO King have an iPhone app?

No iPhone app was listed when its pages were read on Oct 23, 2026. SEO King is listed for Web.

Is SEO King open source?

SEO King is not described as open source on its own site, as read on Oct 23, 2026.

Sources for this page

The prices, plans, platforms and features above were read from these pages on Oct 23, 2026.