ALT SEO: AI Alt Text Generator vs Sleek Alt Filler
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 Sleek Alt Filler.
The short answer
- Only ALT SEO lists a free plan. Paid plans start at $29/month for ALT SEO and $5/month for Sleek Alt Filler.
- Sleek Alt Filler lists 7 features ALT SEO’s listing doesn’t mention, including Analytics, Audits, File naming.
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
Starter
Growth
Scale
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.
Images and videos without alt text are unreadable to screen readers and invisible to search engines. Alt Filler writes what is missing, using your product details or an AI description of the image or video itself. Alt text you wrote by hand is never overwritten, you preview every change before it is saved, and any run can be undone.
- 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
- Generates alt text for product videos, not just images.
- Never overwrites alt text you wrote by hand, unless you choose to.
- Lets you preview every change and undo an entire run afterward.
- Keeps working through large catalogs without stalling or restarting.
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 |  Sleek Alt Filler |
|---|---|---|
| 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 | Sleek Alt Filler |
|---|---|---|
| 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 | Sleek Alt Filler |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $29/month | $5/month(ahead) |
| Longest free trial | Not listed | Not listed |
| Plans listed | 4 | 3 |
Listing
| Measure | ALT SEO | Sleek Alt Filler |
|---|---|---|
| Shopify category rank | #30(ahead) | #846 |
| Shopify App Charts | #13 on Rookies in SEO | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | May 16, 2025 | Sep 25, 2026 |
| Languages | 1 | 1 |
| Developer | Yassine Malti | Sleek App LLC |
FAQ
ALT SEO and Sleek Alt Filler: common questions
- Is ALT SEO or Sleek Alt Filler cheaper?
- Only ALT SEO lists a free plan. Paid plans start at $29/month for ALT SEO and $5/month for Sleek Alt Filler. 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 6 the others don’t mention, such as ADA, AI generation, AI-powered, AODA. Sleek Alt Filler lists 7 the others don’t mention, such as Analytics, Audits, File naming, Image optimization. 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 Sleek Alt Filler; 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 Sleek Alt Filler. 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.