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AltKing: AI Alt Text SEO & ADA vs SEO Image Optimizer Wizard (2026): which should you pick?

As of Oct 23, 2026, SEO Image Optimizer Wizard grades higher than AltKing: AI Alt Text SEO & ADA: 3.0 against 2.8 out of 4.0.

Checked Oct 23, 2026 · graded Oct 23, 2026 by ToolGPA

SEO Image Optimizer Wizard grades higher on features. They get the same grade on value for money, the free plan, ease of use and platforms.

Price, platforms and features side by side. The table says where each price was read and when.

AltKing: AI Alt Text SEO & ADA

Free Shopify app that writes alt text for product and variant images

Free

SEO Image Optimizer Wizard

Free Shopify app that compresses images and audits a store's SEO

Free

Which one is for you

Pick AltKing: AI Alt Text SEO & ADA if

  • Fits if your Shopify catalog has hundreds of product images with no alt text
  • Works for stores that already use StarApps' Variant Image Automator

Look elsewhere if

  • Skip it if your store isn't on Shopify, as it installs only from the Shopify App Store
  • Watch out: despite AI in its name, the listing describes alt text built from templates, not written by AI
  • Too light for meta tags, schema, sitemaps or redirects, as it covers product image alt text only
  • Watch out: variant details in alt text need Variant Image Automator, another StarApps app
  • Watch out: the listing links no help center or FAQ, so questions go to StarApps support

Pick SEO Image Optimizer Wizard if

  • Fits if you run a new Shopify store and want a free list of SEO and speed fixes
  • Works for stores whose large product photos slow their pages down

Look elsewhere if

  • Skip it if your store isn't on Shopify, as it installs only from the Shopify App Store
  • Watch out: the listing doesn't say whether original images are kept or can be restored after compression
  • Watch out: the audit's marketing advice covers ad campaigns StoreYa offers to run for you as a separate service
  • Too light for editing meta tags, schema or redirects, which the listing doesn't describe

How we grade them

2.8GPAAltKing: AI Alt Text SEO & ADAGood3.0GPASEO Image Optimizer WizardVery good
Value for money
AListed as free on the Shopify App Store with no paid plans: bulk alt text, variable templates and the daily sync all cost nothing.
AFree on the Shopify App Store with no paid plan: image compression, the store audit and score, the benchmark and the llms.txt file all cost nothing.
Free plan and trial
AThe whole app is free and the listing shows no paid tier, so there's no cap to reach.
AThe whole app is free and the listing shows no paid plan, so there's no cap to reach.
Features
DAlt text for product and variant images from variable templates, with a daily sync for new images. That's one narrow function: no meta tags, schema, sitemaps or redirects, and variant details need Variant Image Automator.
COne-click image compression, a store audit with a score and action items, a benchmark against large stores, shopping and trust checks and an llms.txt file. It lists fixes but describes no meta tag, schema or redirect editing.
Ease of use
BNo rating on record, but there's little to set: pick the variables for the template, run it once, and the daily sync handles new images.
BNo rating on record, but there's nothing to set up: install it, compress the images in one click and read the audit.
Platforms and integrations
CWeb only, inside the Shopify admin, with StarApps' own Variant Image Automator the one other app listed. No phone or desktop app.
CWeb only, inside the Shopify admin, with Shopify the one connection listed. No phone or desktop app, and nothing for stores off Shopify.
Best forfilling in Shopify product image alt texta free speed and SEO checklist for a Shopify store

The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: AltKing: AI Alt Text SEO & ADA and SEO Image Optimizer Wizard. How we grade

Price against what you get

AltKing: AI Alt Text SEO & ADA has no paid plan and scores 2.0 out of 4 on features, ease of use and platforms. SEO Image Optimizer Wizard has no paid plan and scores 2.3.

SEO Image Optimizer Wizard scores higher for the same starting price. Of the other SEO plugins and apps on the chart, none scores higher than AltKing: AI Alt Text SEO & ADA for less, and none scores higher than SEO Image Optimizer Wizard for less.

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 lessAltKing: AI Alt Text…SEO Image Optimizer W…

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 of SEO plugins and apps, and the best at every price

Where they differ

  • AltKing: AI Alt Text SEO & ADA also covers templates.
  • SEO Image Optimizer Wizard also covers site audit, AI search visibility and page speed.
In commonFree planWeb

At a glance

AltKing: AI Alt Text SEO & ADASEO Image Optimizer Wizard
PricingFreeFree
Starts atFreeFree
Free planListed as free on the Shopify App Store, with no paid plans: bulk alt text from variables, variant details in alt text and a daily sync for new images.Free on the Shopify App Store: one-click image compression, a store audit and SEO score with action items, a benchmark against large stores and an llms.txt file.
Free trialNone listedNone listed
Web
Made byStarApps Studio LLPStoreYa
Price read fromapps.shopify.comapps.shopify.com
CheckedOct 23, 2026Oct 23, 2026

Worth knowing

AltKing: AI Alt Text SEO & ADA

  • Works only on Shopify stores; it is installed from the Shopify App Store.
  • Despite AI in its name, the listing describes alt text built from variable templates and does not explain any AI writing.
  • It covers product image alt text only; it does not edit meta tags, schema, sitemaps or redirects.
  • The listing gives no help center or FAQ; support is through StarApps.

SEO Image Optimizer Wizard

  • It runs only on Shopify stores and is installed from the Shopify App Store.
  • The listing does not say whether original images are kept or can be restored after compression.
  • The audit's marketing advice covers ad campaigns that StoreYa offers to run for you as a separate service.

Key features

AltKing: AI Alt Text SEO & ADA

One-click alt text
Rewrites the alt text of every product and variant image in the store in a single run.
Variable templates
Alt text is assembled from variables such as variant options, image file name, product title, product type, tags and brand name.
Daily sync
Checks the store each day and gives newly added product images alt text in the same format.
Variant details in alt text
With Variant Image Automator, another StarApps app, the alt text of each variant image carries that variant's option details.
Accessibility standards
The listing files it under accessibility for ADA, AODA, EAA and WCAG compliance, alongside its SEO use for Google image search.

SEO Image Optimizer Wizard

One-click image optimization
Compresses all of a store's product images at once to cut page load time, which the listing ties to both speed and SEO.
Store audit and SEO score
Audits and ranks the store across SEO, technical, business and marketing segments and lists the actions to take in each.
Benchmark against large stores
Compares the store with the results of thousands of large online stores to show where it falls behind.
Shopping and trust checks
Checks product description length, promotions, trust badges, reviews and store information, along with image and load-time issues.
llms.txt file
Creates an llms.txt file for the store so AI assistants such as ChatGPT and Gemini can find its content.

Plans

AltKing: AI Alt Text SEO & ADA

  • Free$0

    Alt text for all product and variant images from variable templates, with a daily sync for new images.

SEO Image Optimizer Wizard

  • Free$0

    The whole app; the Shopify listing shows no paid plan.

Common questions

Which is cheaper, AltKing: AI Alt Text SEO & ADA or SEO Image Optimizer Wizard?

As of Oct 23, 2026, both AltKing: AI Alt Text SEO & ADA and SEO Image Optimizer Wizard are free to use.

Which has a free plan, AltKing: AI Alt Text SEO & ADA or SEO Image Optimizer Wizard?

As of Oct 23, 2026, both AltKing: AI Alt Text SEO & ADA and SEO Image Optimizer Wizard have a free plan.

More comparisons

How this page was made

  • The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
  • The grades are our own, from each tool’s review or report card. The GPA is their average.
  • Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
  • The differences and the answers to the questions are worked out from those listings.
How we review and grade