AltKing: AI Alt Text SEO & ADA vs Booster AI SEO + AEO Optimizer (2026): which should you pick?
As of Oct 23, 2026, AltKing: AI Alt Text SEO & ADA grades higher than Booster AI SEO + AEO Optimizer: 2.8 against 2.2 out of 4.0.
Checked Oct 23, 2026 · graded Oct 23, 2026 by ToolGPA
AltKing: AI Alt Text SEO & ADA grades higher on value for money, the free plan and ease of use. Booster AI SEO + AEO Optimizer grades higher on features 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
Booster AI SEO + AEO Optimizer
Shopify app that audits and fixes store SEO and compresses images
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 Booster AI SEO + AEO Optimizer if
- Fits if you run a Shopify store and want SEO fixes applied across every product
- Works for stores with big catalogs that are missing alt text
Look elsewhere if
- Tight if you stay free, as it mostly detects problems; meta templates and fixes need Pro at $39 a month
- Pricey if you want image compression or Search Console data, which need Premium at $69 a month
- Watch out: charges come every 30 days through Shopify unless you pay $349 or $619 for the year
- Skip it if your store isn't on Shopify, as it runs nowhere else
How we grade them
| 2.8GPAAltKing: AI Alt Text SEO & ADAGood | 2.2GPABooster AI SEO + AEO OptimizerFair | |
|---|---|---|
| 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. | DPro is $39 a month, inside this category's dearest tenth (from $33.25), or $349 a year, about $29.08 a month. Image compression, URL keywords and Search Console data need Premium at $69 a month. |
| Free plan and trial | AThe whole app is free and the listing shows no paid tier, so there's no cap to reach. | CA free plan with an SEO score, alt text templates, broken-link detection, manual audits and a weekly sync of 50 images. It finds problems but leaves most of the fixing to Pro. |
| 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. | BAudits with automatic fixes, meta templates, alt text, broken-link fixes, JSON-LD, sitemap submission, llms.txt, image compression and a year of Search Console data. It covers the whole job, spread over two paid plans. |
| 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. | CNo rating on record. It installs from the Shopify App Store, but meta tags and alt text run on templates you set, and the automatic fixes start on Pro. |
| 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. | BWeb only, inside Shopify. It connects to Search Console and ChatGPT, and works with the review apps Judge.me, Loox, Okendo and Yotpo. |
| Best for | filling in Shopify product image alt text | automatic SEO fixes for Shopify stores |
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 Booster AI SEO + AEO Optimizer. 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. Booster AI SEO + AEO Optimizer starts at $39 a month and scores 2.7.
Booster AI SEO + AEO Optimizer scores higher, and starts $39 a month higher: the question is whether the extra is worth that to you. Of the other SEO plugins and apps on the chart, none scores higher than AltKing: AI Alt Text SEO & ADA for less, and 1 scores higher than Booster AI SEO + AEO Optimizer for less.
Features, ease of use and platforms, averaged
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
Where they differ
- AltKing: AI Alt Text SEO & ADA also covers templates.
- Booster AI SEO + AEO Optimizer also covers reports, site audit, schema markup and page speed.
At a glance
| AltKing: AI Alt Text SEO & ADA | Booster AI SEO + AEO Optimizer | |
|---|---|---|
| Pricing | Free | Free plan |
| Starts at | Free | $39 per month, billed every 30 days |
| Free plan | Listed 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. | SEO score, alt text templates, broken-link detection, manual audits, a weekly sync of 50 images and weekly email reports. |
| Free trial | None listed | 14-day free trial on Pro and Premium |
| Web | ||
| Made by | StarApps Studio LLP | Booster SEO |
| Price read from | apps.shopify.com | apps.shopify.com |
| Checked | Oct 23, 2026 | Oct 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.
Booster AI SEO + AEO Optimizer
- Works only on Shopify stores; it is installed from the Shopify App Store.
- Meta tag templates and automatic fixes need Pro at $39 a month; the free plan only detects and reports most issues.
- Image compression, URL optimization and Search Console data need Premium at $69 a month.
- Charges are billed in US dollars every 30 days through Shopify, or yearly at $349 or $619.
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.
Booster AI SEO + AEO Optimizer
- Automatic SEO fixes
- Scans the store continuously and fixes the issues it finds without manual work; automatic fixes and monitoring start on Pro.
- Meta tag templates
- Pro optimizes meta titles and descriptions and applies custom templates to every meta tag, with AI-generated text as an option.
- Image SEO and compression
- Alt text templates on every plan; Premium compresses images (5 GB a month) and renames image files for search.
- Broken links and redirects
- Detects broken links and reports them on the free plan; Pro finds and fixes them automatically.
- Structured data and AI search
- Adds JSON-LD rich snippets, submits the sitemap to Google, and writes an llms.txt file so AI assistants can read the store.
- Reports
- Weekly email summaries on every plan; Premium adds 365 days of Google Search Console metrics, bulk actions and PDF reports.
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.
Booster AI SEO + AEO Optimizer
Free$0
SEO score and badge, alt text with custom templates, broken-link detection, manual audits, weekly sync of 50 images and 24/7 chat support.
Pro$39
per month, billed every 30 days
Adds meta title and description templates, automatic fixes and monitoring, rich snippets, sitemap submission and AI search features. $349 a year.
Premium$69
per month, billed every 30 days
Adds image compression (5 GB a month), URL keyword and image file name optimization, 365 days of Search Console data and PDF reports. $619 a year.
Ways to pay less
AltKing: AI Alt Text SEO & ADA
No public discounts listed.
Booster AI SEO + AEO Optimizer
- Annual discount
Save 25% with yearly billing
The listing offers Pro at $349 a year and Premium at $619 a year, which it says saves 25% against paying monthly.
Common questions
Which is cheaper, AltKing: AI Alt Text SEO & ADA or Booster AI SEO + AEO Optimizer?
As of Oct 23, 2026, AltKing: AI Alt Text SEO & ADA is cheaper to start with: it is free, against $39 a month for Booster AI SEO + AEO Optimizer. AltKing: AI Alt Text SEO & ADA is free, and Booster AI SEO + AEO Optimizer starts at $39 per month, billed every 30 days.
Which has a free plan, AltKing: AI Alt Text SEO & ADA or Booster AI SEO + AEO Optimizer?
As of Oct 23, 2026, both AltKing: AI Alt Text SEO & ADA and Booster AI SEO + AEO Optimizer have a free plan.
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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.