ALTerator ‑ AI Alt Text vs AltGenius: Alt Text Optimizer
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 ALTerator, Nov 3, 2026 for AltGenius.
The short answer
- On the Shopify App Store: ALTerator 5.0 from 1 reviews and AltGenius 4.9 from 57 reviews.
- Only ALTerator lists a free plan. Paid plans start at $5/month for ALTerator and $4.99/month for AltGenius.
- ALTerator lists 4 features AltGenius’s listing doesn’t mention, including AI generation, Automations, Bulk editing.
Head to head
SEO Image ALT TAGS
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · 50 lifetime image generations
- · Keyword optimization
- · Quality SEO scoring of descriptions
- · Single & bulk generation
- · Smart AI-powered alt text generation
- · Supports 18 major languages
Basic
- · 200 images per month
- · Background processing
- · Category templates
- · Custom prompt refinement
- · Download CSV reports
- · History & rollback changes
Pro
- · 1,000 images per month
- · Auto-generation for new images
- · Background processing
- · Category templates
- · Custom prompt refinement
- · Download CSV reports
Premium
- · 10,000 images per month
- · Auto-generation for new images
- · Background processing
- · Category templates
- · Custom prompt refinement
- · Download CSV reports
Basic
- · Automatic updates
- · Email support
- · Unlimited product images
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureALTerator uses AI to automatically generate SEO-optimized and accessible alt text for product images, collection images, and standalone media files, including blog and page images. Process thousands of images in bulk while the app works in the background. The app supports 18 languages, and custom prompt refinement for brand-specific descriptions.
AltGenius writes alt text for your product images from a template you choose, using details such as title, type, brand and variant. You see the result on your own products before you start. By default it fills in only images with no alt text, so anything you wrote stays as it is. Alt text with links or embed code, which review and video apps use, is skipped.
- Bulk generate AI alt text for products, collections, and blogs in 18 languages.
- Grade every alt text (0-100) and instantly spot SEO improvement areas.
- Auto-generate alt text for newly added images without manual intervention.
- Track changes and rollback bulk updates to restore original alt text instantly.
- Automatically add and optimize all your product image alt texts.
- Customize your alt text template with various variables.
- Schedule an update when you need it.
- Save hours manually inputting alt text for all your product photos.
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 |  ALTerator |  AltGenius |
|---|---|---|
| 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 | ALTerator | AltGenius |
|---|---|---|
| App Store rating | 5.0 ★(ahead) | 4.9 ★ |
| App Store reviews | 1 | 57(ahead) |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
ALTerator and AltGenius: common questions
- Is ALTerator or AltGenius cheaper?
- Only ALTerator lists a free plan. Paid plans start at $5/month for ALTerator and $4.99/month for AltGenius. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, ALTerator or AltGenius?
- On the Shopify App Store: ALTerator 5.0 from 1 reviews and AltGenius 4.9 from 57 reviews.
- What features does each app list that the other doesn’t?
- ALTerator lists 4 the others don’t mention, such as AI generation, Automations, Bulk editing, Reporting. 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 ALTerator, Nov 3, 2026 for AltGenius; 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 ALTerator, Nov 3, 2026 for AltGenius. 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.