indexAIze ‑ AI Discovery & SEO vs Zelium ‑ AI Discoverability
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 indexAIze, Oct 14, 2026 for Zelium.
The short answer
- Only Zelium lists a free plan. Paid plans start at $25.99/month for indexAIze and $19/month for Zelium.
- indexAIze lists 6 features Zelium’s listing doesn’t mention, including Breadcrumbs, Bulk editing, Content analysis.
Head to head
Starter
- · AI Bot Access: Meta AI, Claude
- · Product Optimization for AI search
- · Product Schemas for AI search
- · Robots.txt optimization for AI search
- · Up to 40 products in 1 language
Professional
- · AI Bot Access: Gemini, Meta AI, Claude
- · Easy Sitemap generator for AI search
- · Fast & easy optimization of your store
- · Product Optimization for AI search
- · Up to 70 products in 1 language
Professional Plus
- · AI-enhanced Sitemap (pay-per-use tokens)
- · Collections Optimization for AI search
- · Unlock extra AI features
- · Up to 200 products in 2 languages
Growth Plus
- · AI Bot Access: + ChatGPT
- · AI Welcome Page for better AI crawling
- · Advanced AI-driven commerce
- · Advanced Schema Data
- · Up to 450 products in 3 languages
Free
Starter
Growth
Scale
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureMake your products discoverable by ChatGPT, Gemini, Perplexity, other AI platforms that recommend products to millions of shoppers. indexAIze creates AI-optimized feeds, structured data, and llm.txt files so AI agents can easily find and recommend YOUR products. Includes Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO). Test with built-in AI Shopping Assistant. Track AI bot visits.
Are your products showing up in AI tools like ChatGPT or Gemini? More people now use AI before they buy, but many stores are still invisible to AI platforms. Zelium helps Shopify merchants make products easier to find on AI platforms. It scans product data, shows an AI Discoverability Score, and highlights missing details that confuses AI Engines.
- Structure product data & catalogue and make them AI-friendly and discoverable.
- AI-Enhanced GEO features designed for improved AI comprehension and visibility
- Optimize your catalog in up to 10 languages for global reach & AI-visibility.
- Transform product information into AI-friendly formats and schema markup.
- AI Discoverability Score for every product and store
- Product data quality verification and suggested fixes
- AI-ready product content, meta-data improvements
- AI product feed JSON and llms.txt, ai-sitemap.xml, robots-hints.txt publishing
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 |  indexAIze |  Zelium |
|---|---|---|
| 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 | indexAIze | Zelium |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
indexAIze and Zelium: common questions
- Is indexAIze or Zelium cheaper?
- Only Zelium lists a free plan. Paid plans start at $25.99/month for indexAIze and $19/month for Zelium. 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?
- indexAIze lists 6 the others don’t mention, such as Breadcrumbs, Bulk editing, Content analysis, Page indexing. Zelium lists 6 the others don’t mention, such as AI generation, ALT text, Analytics, APIs and webhooks. 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 indexAIze, Oct 14, 2026 for Zelium; 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 indexAIze, Oct 14, 2026 for Zelium. 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.