ALT SEO: AI Alt Text Generator vs Legible AI
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 4, 2026 for ALT SEO, Oct 13, 2026 for Legible AI.
The short answer
- Both list a free plan. Paid plans start at $29/month for ALT SEO and $5.99/month for Legible AI.
- ALT SEO lists 9 features Legible AI’s listing doesn’t mention, including ADA, AI generation, AI-powered.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · 100 images/month (100% free!)
- · Pay As You Go $1/50 images
Starter
- · 1000 images/month (3¢/image)
- · Bulk Processing
- · Custom Alt Text Format
- · Customizable Prompts
- · Email Notifications
- · Keywords Emphasis
Professional
- · 3000 images/month (2¢/image)
- · Bulk Processing
- · Custom Alt Text Format
- · Customizable Prompts
- · Email Notifications
- · Keywords Emphasis
Enterprise
- · 12000 images/month (1¢/image)
- · Bulk Processing
- · Custom Alt Text Format
- · Customizable Prompts
- · Email Notifications
- · Keywords Emphasis
Free
- · 25 images/calendar month
- · Image and product context
- · Review before saving
Starter
- · 250 images/calendar month
- · Image and product context
- · Review before saving
Growth
- · 1,500 images/calendar month
- · Image and product context
- · Review before saving
Pro
- · 10,000 images/calendar month
- · Image and product context
- · Review before saving
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureALT SEO AI Alt Text tackles a common Shopify challenge: missing or poor image alt text that hurts SEO performance. Our AI technology creates descriptive, keyword-rich alt text that improves search rankings while making your store accessible to all customers. Working seamlessly in the background, ALT SEO processes new images automatically and lets you customize descriptions to match your brand voice.
Legible helps you find product images without alt text. Generate descriptions using the image, product, and brand context, then review, edit, or regenerate each draft before approving it in Shopify. Optional auto-mode prepares drafts for new product images and is off by default. Only approved text is saved to Shopify.
- Automatically create AI Alt Text, accessible image descriptions using Open AI
- Process your entire image catalog at once or schedule regular updates
- Tailor AI Alt Text with industry-specific keywords and brand terminology
- Schedule recurring updates to keep alt text fresh and optimized over time
- Generate descriptive alt text from product images with AI
- Review, edit, regenerate, and approve suggestions before publishing
- Automatically draft alt text for new product images
- Save approved alt text back to Shopify
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  ALT SEO |  Legible AI |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | ALT SEO | Legible AI |
|---|---|---|
| App Store rating | 4.8 ★ | Not published |
| App Store reviews | 62 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | 0% | Not enough data |
Pricing
| Measure | ALT SEO | Legible AI |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $29/month | $5.99/month(ahead) |
| Longest free trial | Not listed | Not listed |
| Plans listed | 4 | 4 |
Listing
| Measure | ALT SEO | Legible AI |
|---|---|---|
| Shopify category rank | #30 | #143 |
| Shopify App Charts | #13 on Rookies in SEO | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | May 16, 2025 | Sep 28, 2026 |
| Languages | 1 | 1 |
| Developer | Yassine Malti | QOL Apps |
FAQ
ALT SEO and Legible AI: common questions
- Is ALT SEO or Legible AI cheaper?
- Both list a free plan. Paid plans start at $29/month for ALT SEO and $5.99/month for Legible AI. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- ALT SEO lists 9 the others don’t mention, such as ADA, AI generation, AI-powered, AODA. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 4, 2026 for ALT SEO, Oct 13, 2026 for Legible AI; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 4, 2026 for ALT SEO, Oct 13, 2026 for Legible AI. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.