Legible AI vs SmartAlt ‑ AI SEO Alt Text
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for Legible AI, Oct 14, 2026 for SmartAlt.
The short answer
- Both list a free plan. Paid plans start at $5.99/month for Legible AI and $15/month for SmartAlt.
- SmartAlt lists 6 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
- · 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
Free
- · 75 free generations
- · AI product image descriptions
- · Auto Mode for new product images
- · Bulk alt text generation
- · Generation usage tracking
Core
- · 750 generations per month
- · Alt text creation powered by AI
- · Bespoke, keyword-rich descriptions
- · Boost agentic visibility/AI-readiness
- · Bulk generation and Auto Mode
- · Improve SEO and accessibility
Growth
- · 2,750 generations per month
- · Additional credits: 1.1¢ per generation
- · All Core plan features
- · Bulk generation and Auto Mode
- · In-app chat and email support
Premier
- · 7500 generations per month
- · Additional credits: 1¢ per generation
- · All Growth plan features
- · Bulk generation and Auto Mode
- · In-app chat and email support
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureLegible 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.
Improve your product image SEO and spend less time writing alt text. SmartAlt uses AI and product context to generate descriptions in bulk. Find missing alt text across your catalogue, then use Auto Mode to cover new product images automatically. Create useful descriptions for search engines and screen reader users as part of your wider ADA and WCAG accessibility efforts.
- 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
- Boost discoverability: Generate keyword-rich descriptions that improve SEO
- Improve accessibility: Add accurate, descriptive alt text for every image
- Save time: Automate alt text for new and existing products
- Stay accurate: SmartAlt AI understands product context for relevant results
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 |  Legible AI |  SmartAlt |
|---|---|---|
| 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 | Legible AI | SmartAlt |
|---|---|---|
| App Store rating | Not published | 4.2 ★ |
| App Store reviews | Not published | 9 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Legible AI | SmartAlt |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $5.99/month(ahead) | $15/month |
| Longest free trial | Not listed | Not listed |
| Plans listed | 4 | 4 |
Listing
| Measure | Legible AI | SmartAlt |
|---|---|---|
| Shopify category rank | #143 | #131 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | Yes |
| Launched | Sep 28, 2026 | Aug 13, 2025 |
| Languages | 1 | 12 |
| Developer | QOL Apps | Visualsoft Limited |
FAQ
Legible AI and SmartAlt: common questions
- Is Legible AI or SmartAlt cheaper?
- Both list a free plan. Paid plans start at $5.99/month for Legible AI and $15/month for SmartAlt. 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?
- SmartAlt lists 6 the others don’t mention, such as ADA, AI generation, AI-powered, Bulk editing. 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 Oct 13, 2026 for Legible AI, Oct 14, 2026 for SmartAlt; 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 Oct 13, 2026 for Legible AI, Oct 14, 2026 for SmartAlt. 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.