SEO HERO concentrates on bulk AI alt text with keyword and prompt controls. Lumi treats alt text as one reviewable workstream inside a wider Shopify catalog cleanup process.
Quick answer
Lumi is better suited to teams that want to find missing alt text, choose other product fields to refresh, review several content types, publish approved Shopify updates, and keep generation history.
Published by Lumi from official vendor documentation. We have not tested these tools side by side. Compare your actual fields and review needs before choosing.
Checked October 3, 2026: SEO HERO lists 100 free image alt texts without specifying monthly recurrence, $5/month for 150, $15/month for 500, and $35/month for 2,000. A 1,000-image job fits the $35 plan; larger one-time pack prices are not publicly listed. Lumi Free has 100 recurring monthly credits shared with descriptions; Cleanup is $79 for 2,000 shared credits valid 90 days. A 5,000-image job needs a different capacity plan. Verify overwrite, backup, and restoration behavior before production use.
USD before tax. Prices and limits can change. Check official vendor terms and current Lumi plans.
Estimate a large-catalog workloadSide-by-side
Use the table to compare the work each app handles before deciding which one fits your store.
| Criterion | Lumi | SEO HERO |
|---|---|---|
| Primary job | Find missing image alt text, empty descriptions, and missing SEO fields, create drafts, review them, publish approved updates, and keep generation history. | Generate image alt text in bulk with brand, image, product, and SEO-keyword context. |
| Catalog coverage | Product-image alt text, product descriptions, search titles, and meta descriptions. Available features vary by plan. | Focuses on Shopify image-alt-text generation and detecting missing alt values. |
| Review model | Merchant-started batches always create drafts for review. Maintain can automate drafts for new-product content and missing image alt text after product updates; enabled automation can publish automatically after you opt in. | Provides keyword and prompt controls so merchants can tune generated alt text before relying on it. |
| Broader scope | Focused on Shopify product-content cleanup rather than replacing a full SEO, site-speed, or general AI toolkit. | Purpose-built around alt text rather than a wider product-content and change-tracking system. |
| Best fit | Shopify teams that want missing-alt-text detection, selected content drafts, review, publishing, and generation history in one place. | Merchants whose highest-priority task is configurable, keyword-aware alt-text generation. |
Lumi's distinction
Lumi is not a complete SEO suite or an accessibility guarantee. It helps Shopify teams find missing alt text, choose other fields to refresh, review drafts, publish approved updates, and keep generation history.
Identify missing image alt text and review storefront findings.
Create suggestions from your product details for merchant review.
Edit and approve proposed content.
Apply approved updates to Shopify fields.
Keep generation history and eligible-plan alt-text exports.
Lumi's Free plan currently includes 100 monthly generation credits. Confirm current plan details on the Shopify App Store.
Not in every use case. Merchants whose highest-priority task is configurable, keyword-aware alt-text generation. Lumi is better suited to teams that want to find missing alt text, choose other product fields to refresh, review several content types, publish approved Shopify updates, and keep generation history.
SEO HERO's primary job is to generate image alt text in bulk with brand, image, product, and SEO-keyword context. Lumi is organized around finding missing image alt text, choosing other product fields to refresh, reviewing drafts, publishing approved updates, and keeping generation history.
Alt text is the only catalog field you need to address. Keyword and custom-prompt controls are central to your alt-text process. You want a dedicated alt-text utility instead of a broader catalog cleanup process.
No. Lumi helps with product-image alt text and search-content cleanup, but accessibility involves the full storefront and search results depend on many factors.
Keep comparing
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