Booster SEO offers a free plan: App Store lists weekly image sync for 50 images and alt-text/custom templates. The lowest-priced paid plan listed is Pro at $39 / month · billing interval not stated. Top listed plan: Concierge costs $199 / month · billing interval not stated — as of November 2026. Source
Booster SEO offers AI-generated alt text for product images alongside template modes. Its documented checkbox controls whether existing text is replaced; a separate guide describes weekly image sync.
Is Booster SEO free?
Yes: free plan available. Free: App Store lists weekly image sync for 50 images and alt-text/custom templates. Vendor alt-text guide instead states a 250-image free optimization limit. Reset/relationship between these limits: not stated; both are shown rather than reconciled. Guide says alt text is available on all plans. Pro: The Shopify App Store listing was unavailable on 2 November 2026, so its yearly option and trial could not be confirmed. Premium: The Shopify App Store listing was unavailable on 2 November 2026, so its yearly option and trial could not be confirmed. Free access to AI features: ongoing free plan; free plan with alt-text optimization on the developer pricing page; vendor help lists a 250-image limit — as of November 2026. Source
We have not run hands-on tests yet. We aim to review facts every 90 days, but vendor terms can change sooner. Feature check dates: October 22, 2026.
Plan & commitment
Free · $0App Store lists weekly image sync for 50 images and alt-text/custom templates. Vendor alt-text guide instead states a 250-image free optimization limit. Reset/relationship between these limits: not stated; both are shown rather than reconciled. Guide says alt text is available on all plans. · Commitment: Not statedAs of November 2026 · Price source
From the vendor's website; checked October 22, 2026.
Choose AI-powered alt text for all product images; templates are a separate option — as of October 2026
Choose whether AI replaces existing alt text; the guide enables AI for all images by clearing the keep-existing checkbox — as of October 2026
Review before saving: not stated; selected-image mode: not stated; new-product-specific trigger: not stated — as of October 2026
Variant-image coverage: not stated; collection-image coverage: not stated; output languages: not stated — as of October 2026
Alt-text rollback: not stated; uninstalling does not remove generated alt text — as of October 2026
Pro includes meta-title/description optimization; Premium adds automatic image-filename optimization — as of October 2026
Booster SEO pricing and plans
Each plan keeps its own billing terms. Free plans and trials are listed separately. Terms the vendor does not state are marked “Not stated”.
Free
$0App Store lists weekly image sync for 50 images and alt-text/custom templates. Vendor alt-text guide instead states a 250-image free optimization limit. Reset/relationship between these limits: not stated; both are shown rather than reconciled. Guide says alt text is available on all plans. — as of
$39 / month · billing interval not statedDeveloper pricing page; billing interval not stated. The Shopify App Store listing was unavailable on 2 November 2026, so its yearly option and trial could not be confirmed. Free-plan features plus Unlimited, meta-title/description optimization and Auto Pilot. A separate AI-image allowance or credit definition is not stated. — as of
$69 / month · billing interval not statedDeveloper pricing page; billing interval not stated. The Shopify App Store listing was unavailable on 2 November 2026, so its yearly option and trial could not be confirmed. Pro features plus image compression with 5 GB storage/month, automatic filenames and bulk actions. Cost for 1,000 AI alt-text images: not stated separately; the listing's Unlimited feature label is not an explicit AI-image quota. — as of