11 Best Shopify SEO Apps (2026): Pricing, Free Plans & What Apps Can't Fix
The best Shopify SEO app for most stores is Smart SEO (free plan, Pro at $14.99/mo) or SEO King for large catalogs. Add Judge.me for free review stars and a dedicated schema app only if your theme's structured data is broken. Apps handle meta tags, alt text, image compression, sitemaps, schema and llms.txt well. They can't fix Shopify's theme-level duplicate URLs, write collection pages or earn links. That's where a Shopify SEO agency comes in. All prices, ratings and review counts below are as shown on the Shopify App Store on 8 October 2026.
TL;DR: quick picks
All-rounder: Smart SEO. Large catalog on a budget: SEO King. Best free plan: SearchPie. Auto-fix audits: Avada or Booster. Image-heavy store: TinySEO. Keyword research: Plug in SEO. Schema only: JSON-LD for SEO or Schema Plus. Review stars: Judge.me (free). Install one SEO suite, not three.
Apps installed, still not ranking?
Book a free 30-minute Shopify SEO audit call. We'll find the theme-level issues apps can't fix, like duplicate collection URLs and thin collection pages, and show you what to do first.
Book a free Shopify SEO audit callShopify SEO apps compared
| App | Rating (reviews) | Free plan? | Paid from | Standout |
|---|---|---|---|---|
| Smart SEO | 5.0 (956) | Yes | $14.99/mo | JSON-LD + llms.txt + IndexNow on Pro |
| SEO King | 4.7 (543) | Yes | $9.99/mo | Priced by page count |
| SearchPie | 4.9 (2,442) | Yes | $39/mo | Strongest free plan |
| Avada SEO | 4.9 (4,688) | Yes | $34.95/mo | AI audit agent |
| Booster SEO | 4.8 (5,483) | Yes | $39/mo | Auto-pilot fixes |
| TinySEO | 5.0 (2,534) | Pay as you go | $14/mo | Image optimization |
| Plug in SEO | 4.6 (675) | No | $29.99/mo | Keyword research |
| Yoast SEO | 4.3 (176) | No | $19/mo | Readability + AI visibility (AI+) |
| JSON-LD for SEO | 4.9 (442) | No | $399/yr | Dedicated rich-results schema |
| Schema Plus | 5.0 (592) | No | $10.99/mo | Schema with review-app support |
| Judge.me | 5.0 (48,164) | Yes | $15/mo | Free review rich snippets |
The 11 best Shopify SEO apps (2026)
1. Smart SEO AI & Image Optimizer
Smart SEO AI & Image Optimizer by Sherpas Design. AI meta tags and alt text, JSON-LD, image and speed optimization, broken links plus a backlinks report, IndexNow, llms.txt and an MCP server.
- Rating: 5.0★ (956 reviews) · Built for Shopify
- Pricing: Free plan · Pro $14.99/mo · Business $24.99/mo · Premium $49.99/mo · 7-day trial
- Verdict: Best all-rounder for most stores: the Pro plan covers JSON-LD, llms.txt and IndexNow for $14.99/mo.
2. SEO King
SEO King by Engage Apps. AI meta titles, descriptions and alt text in bulk, JSON-LD, sitemaps, robots.txt and llms.txt, 404 and broken links, SERP tracking and GSC analytics, auto-translate for 40+ languages.
- Rating: 4.7★ (543 reviews) · Built for Shopify
- Pricing: Free basics · $9.99/mo (500 pages) · $13.99/mo (5,000) · $16.99/mo (20,000)
- Verdict: Best value for large catalogs: paid plans are priced by page count, not features.
3. SearchPie: AI SEO & Schema
SearchPie: AI SEO & Schema by PieLab. Product, FAQ and breadcrumb JSON-LD, speed booster (compression, lazyload, minification), llms.txt plus an AEO/GEO checklist, IndexNow, 404 auto-fix.
- Rating: 4.9★ (2,442 reviews) · Built for Shopify
- Pricing: Free Starter · Premium $39/mo · Enterprise $99/mo · 7-day trial
- Verdict: Best free plan: breadcrumbs and store schema, sitemap, image compression and llms.txt at $0.
4. Avada AI SEO Image Optimizer
Avada AI SEO Image Optimizer by Avada SEO Suite. AI SEO audit agent with one-click fixes, image compression and alt text, speed features, structured data, sitemaps, broken links, robots.txt editor on Pro.
- Rating: 4.9★ (4,688 reviews) · Built for Shopify
- Pricing: Free plan · Pro $34.95/mo · Enterprise $99/mo · 7-day trial
- Verdict: Best for audit-and-fix automation if you don't have an SEO on staff.
5. BOOSTER AI SEO + AEO Optimizer
BOOSTER AI SEO + AEO Optimizer by Booster SEO. AI auto-fix of SEO issues, meta tags, structured data, image compression, broken links, llms.txt.
- Rating: 4.8★ (5,483 reviews) · Built for Shopify
- Pricing: Free plan · Pro $39/mo · Premium $69/mo · 14-day trial
- Verdict: Most-reviewed SEO suite in this list. Good for hands-off auto-pilot fixes.
6. TinySEO (formerly TinyIMG)
TinySEO (formerly TinyIMG) by TinySEO. Image compression, resizing, alt text and filenames, JSON-LD, llms.txt, 404/301 redirects, lazy load and minification, IndexNow.
- Rating: 5.0★ (2,534 reviews) · Built for Shopify
- Pricing: Pay as you go (50 free images/mo) · Beginner $14/mo · Advanced $23/mo · Expert $49/mo
- Verdict: Best for image-heavy stores: pricing scales with image volume.
7. Plug in SEO
Plug in SEO by Plug in Useful. SEO scanner and audits, AI keyword research (Keyword Studio), AI copywriting for titles and descriptions, JSON-LD, one-click broken-link redirects.
- Rating: 4.6★ (675 reviews) · Built for Shopify
- Pricing: Lite $29.99/mo · Standard $49.99/mo · Premium $79.99/mo · 7-day trial
- Verdict: Best for keyword research inside Shopify. No free plan.
8. Yoast SEO
Yoast SEO by Yoast. Product structured data, AI title and meta suggestions, SEO and readability analysis, llms.txt, bulk editor. AI+ adds AI visibility and citation tracking.
- Rating: 4.3★ (176 reviews)
- Pricing: Premium $19/mo · AI+ $45/mo · 14-day trial
- Verdict: Best for content-heavy stores already used to Yoast on WordPress.
9. JSON-LD for SEO
JSON-LD for SEO by Ilana Davis LLC. Rich-results schema for products, reviews, breadcrumbs, FAQs, video and more, Merchant Center fields, review stars through supported review apps, schema that survives theme changes.
- Rating: 4.9★ (442 reviews)
- Pricing: $399/year (annual only) · 7-day trial
- Verdict: Best dedicated schema app if structured data is your main gap.
10. Schema Plus
Schema Plus by SchemaPlus Inc. JSON-LD for product, review, FAQ, video, merchant listing and local business; fixes conflicting markup; works with Judge.me, Loox, Okendo and Yotpo.
- Rating: 5.0★ (592 reviews)
- Pricing: Lite $10.99/mo · Essential $20.99/mo · Premium $34.99/mo · 14-day trial
- Verdict: Best monthly-billed schema specialist. Check the product limit on Lite (5).
11. Judge.me Product Reviews
Judge.me Product Reviews by Judge.me. Review rich snippets on the free plan, Google reviews sync, Google Shopping on Awesome, a reviews SEO page.
- Rating: 5.0★ (48,164 reviews) · Built for Shopify
- Pricing: Forever Free · Awesome $15/mo
- Verdict: Not an SEO app, but the cheapest way to earn review stars in search results.
What SEO apps can't do
Shopify's biggest SEO problems live in the theme and the catalog structure, not in meta tags:
- Duplicate product URLs. Collection grids link to /collections/x/products/y instead of /products/y. The fix is a Liquid change in your theme, not an app setting.
- Filter and tag URL bloat. Search & Discovery (rated 2.6★, and an on-site search tool rather than an SEO app), Boost and tag pages create crawlable parameter URLs that need robots and noindex rules.
- Thin collection pages. Your highest-intent pages need real buying-guide copy, FAQs and internal links. Apps can generate text, but not content that outranks competitors.
- Speed lost to apps themselves. Every app adds scripts. Several SEO suites plus a schema app plus a speed app often slow the store they're meant to help.
- Duplicate schema. Running two apps that both output Product JSON-LD (or one app plus your theme's built-in schema) creates conflicting markup. Pick one source.
- Links and AI search authority. No app earns backlinks, digital PR or citations in AI answers.
If you've installed the apps and organic revenue still isn't growing, the problem is usually one of the above. Our Shopify SEO services fix these at theme level, and our guide to the best Shopify SEO agencies compares your options.
How to choose a Shopify SEO app
- Start with one suite. Smart SEO, SEO King or SearchPie covers meta tags, alt text, sitemaps, schema and llms.txt.
- Check your theme's schema first. Many Online Store 2.0 themes already output Product JSON-LD. Test a product page in Google's Rich Results Test before adding a schema app.
- Add reviews for stars. Judge.me's free plan outputs review rich snippets.
- Measure speed before and after. Run PageSpeed Insights on a product page before installing and a week after.
- Uninstall cleanly. Removing an app can leave code in your theme. Check theme files for leftover snippets.
Want the fixes apps can't make?
Book a free 30-minute Shopify SEO audit call. We'll crawl your store, check your schema and app load, and give you a prioritised fix list, whether or not you work with us.
Book your free Shopify SEO audit callFrequently asked questions
What is the best SEO app for Shopify?
For most stores, Smart SEO is the best all-round Shopify SEO app: it has a free plan, and the $14.99/mo Pro plan adds JSON-LD, llms.txt and IndexNow. SEO King is better value for large catalogs, and SearchPie has the strongest free plan. Prices and ratings as shown on the Shopify App Store on 8 October 2026.
Are free Shopify SEO apps good enough?
For basics, yes. Free plans from SearchPie, Smart SEO, SEO King, Avada and Booster cover meta tags, alt text, sitemaps and some schema. Judge.me's free plan adds review rich snippets. Paid plans mainly add bulk AI generation, more schema types and automation.
Do I need a Shopify SEO app at all?
Not necessarily. Shopify already generates a sitemap, canonical tags and editable meta titles, and many themes output Product schema. An app saves time on bulk meta tags, alt text and image compression, but the biggest Shopify SEO wins (duplicate URLs, collection-page content, links) come from theme and content work.
Can I use more than one Shopify SEO app?
Avoid running two apps that do the same job. Two schema sources create conflicting JSON-LD, and every extra app adds scripts that slow the store. One SEO suite plus a review app is enough for most stores.
Do Shopify SEO apps slow down my store?
They can. Each app may add JavaScript or CSS to your storefront. Test a product page in PageSpeed Insights before and after installing, and remove leftover theme code when you uninstall.
Which Shopify SEO apps support llms.txt?
As listed on the Shopify App Store on 8 October 2026: Yoast SEO, SEO King, Smart SEO, SearchPie, TinySEO and Booster SEO mention llms.txt support.
Is Shopify Search & Discovery an SEO app?
No. Search & Discovery is Shopify's free on-site search and filtering app. Its filters can actually create crawlable parameter URLs that need to be controlled for SEO.
When should I hire a Shopify SEO agency instead of using apps?
When organic revenue has stalled despite the basics being in place: duplicate collection URLs, thin collection pages, slow theme code, missing links or AI search visibility all need hands-on technical and content work that apps can't do.
