AltMaster: AI Alt Text SEO vs ATAI ‑ AltText.ai AI Alt Text
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Sep 20, 2026 for AltMaster, Oct 22, 2026 for ATAI.
The short answer
- ATAI lists 15 features AltMaster’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.
Pay as you go
- · Purchase additional credits as needed
- · Your first 25 images are totally free
Bronze Plan
- · 100 images / month
- · Purchase additional credits as needed
- · Unused credits roll over
- · Your first 25 images are totally free
Silver Plan
- · 500 images / month
- · Purchase additional credits as needed
- · Unused credits roll over
- · Your first 25 images are totally free
Gold Plan
- · 2000 images / month
- · Purchase additional credits as needed
- · Unused credits roll over
- · Your first 25 images are totally free
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureAltMaster helps Shopify merchants fix missing, blank, or messy image alt text at scale. Scan your store, then bulk-generate alt text with AI or reusable templates built from product title, variant, vendor, type, and tags. Preview before saving, then update product, variant, and collection images directly in Shopify. Great for large catalogs, variant-heavy stores, and migrations where old alt text needs cleanup.
AltText.ai generates accurate, SEO-optimized alt text for the product and blog images in your store. It reads your product name, brand, and description, then writes natural alt text that search engines index and screen readers announce, supporting ADA, AODA, EAA, and WCAG requirements.
- Bulk-update alt text on every product image in your store.
- Smart templates with product + variant tokens.
- Variant-aware: each variant image gets its own alt text (color, size, SKU).
- Live preview before you run, so you always know what's going out.
- Works automatically on each product image you create or update.
- Bulk update all/any of your existing products or blog images at once.
- Uses keywords from your product name, brand, and description in the alt text.
- Fully customizable settings to control when alt text is added.
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 |  AltMaster |  ATAI |
|---|---|---|
| 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 | AltMaster | ATAI |
|---|---|---|
| App Store rating | Not published | 4.5 ★ |
| App Store reviews | Not published | 142 |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | 0% |
FAQ
AltMaster and ATAI: common questions
- What features does each app list that the other doesn’t?
- AltMaster lists 3 the others don’t mention, such as Analytics, Metadata optimization, Page indexing. ATAI lists 15 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 Sep 20, 2026 for AltMaster, Oct 22, 2026 for ATAI; 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 Sep 20, 2026 for AltMaster, Oct 22, 2026 for ATAI. 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.