Spanner vs CatalogOS ‑ AI Recommendations
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026.
The short answer
- Only Spanner lists a free plan. Paid plans start at $20/month for Spanner and $7.99/month for CatalogOS.
- CatalogOS lists 5 features Spanner’s listing doesn’t mention, including Fraud detection, Multi-store, Order tags.
Head to head
Free
- · 10 email and slack per month
- · Automation triggers and events
- · Unlimited storefront widgets
- · Up to 5 tools
- · Use MCP to build tools
Pro
- · 50 SMS notifications per month
- · 500 email notifications per month
- · Automation triggers and events
- · Unlimited Slack notifications
- · Unlimited storefront widgets
- · Unlimited tools
Basic
- · Automatic updates when product changes
- · Catalog health score with issues and war
- · Open affected items to fix them
- · Sync up to 100 products & collections
Advanced
- · Automatic updates when product changes
- · Catalog health score with issues and war
- · Open affected items to fix them
- · Sync up to 500 products & collections
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureTools connect to your real store data — products, orders, customers, inventory. Build sales dashboards, inventory alerts, order monitors, daily digests, or anything else you need. Automate with triggers: respond to store events, run on schedules, receive custom triggers, or integrate with Flow. Get notified via Slack, Email, or SMS when important events happen.
CatalogOS is your catalog health and management layer for store. It analyzes your products, variants, and collections to identify missing, incomplete, inconsistent, or potentially problematic catalog data. From missing images and SKUs to empty collections and unorganized products, CatalogOS helps you understand what needs attention and what you can do about it.
- Build custom tools by describing what you need — AI creates them instantly
- Automate with store and customer events, schedules, custom and Flow triggers
- Get notified via Slack, Email, or SMS when important store events happen
- Order Monitoring & Smart Alerts.
- Low Inventory Alerts.
- Automatic Theme Backup on Updates.
- On demand Performance Reports.
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 |  Spanner |  CatalogOS |
|---|---|---|
| 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 | Spanner | CatalogOS |
|---|---|---|
| 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
Spanner and CatalogOS: common questions
- Is Spanner or CatalogOS cheaper?
- Only Spanner lists a free plan. Paid plans start at $20/month for Spanner and $7.99/month for CatalogOS. 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?
- Spanner lists 4 the others don’t mention, such as APIs, Customer tags, Order processing, Return processing. CatalogOS lists 5 the others don’t mention, such as Fraud detection, Multi-store, Order tags, Scheduled tasks. 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; 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. 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.