Catalog Sync vs CircaOS Connector
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 Catalog Sync, Oct 14, 2026 for CircaOS Connector.
The short answer
- Only Catalog Sync lists a free plan. Paid plans start at $99/month for Catalog Sync and $50/month for CircaOS Connector.
- CircaOS Connector lists 8 features Catalog Sync’s listing doesn’t mention, including Barcode scanning, Barcodes, Data import and export.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Reseller
- · Real-time inventory sync
- · Unlimited product imports
Supplier Basic
- · Real-time inventory sync
- · Up to 250 shared products
- · Up to 5 reseller connections
Supplier Pro
- · Priority support
- · Real-time inventory sync
- · Up to 2,500 shared products
- · Up to 25 reseller connections
Base
- · Admin and associate permissions
- · Configurable app interface
- · Customer success support
- · Customizable business rules
- · Unlimited seats across your store
Scale
- · Admin and associate permissions
- · Configurable app interface
- · Customer success support
- · Customizable business rules
- · Unlimited seats across your store
Peak
- · Admin and associate permissions
- · Configurable app interface
- · Customer success support
- · Customizable business rules
- · Unlimited seats across your store
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCatalogSync eliminates the manual work of sharing products between Shopify stores. Suppliers can share their catalog with resellers in a one-way sync, while inventory stays synchronized automatically from supplier to reseller. Resellers set custom markup rules during import and manage products from multiple suppliers in one dashboard.
This app connects your CircaOS system to your Shopify store. When you process second-hand or consignment items in CircaOS, you can push product listings — including photos, metadata, SKUs, and descriptions — directly to Shopify. The app gives you control over which items publish online, so your storefront stays accurate without manual data entry.
- Share products from your catalog with reseller stores securely
- Automatic inventory synchronization across all connected stores
- Set custom markup rules when importing supplier products
- Manage connections and approve or revoke reseller access
- Push inventory listings from CircaOS to Shopify in one click.
- Sync product photos, metadata and descriptions automatically.
- Seamlessly capture product data for effortless resale inventory management.
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 |  Catalog Sync |  CircaOS Connector |
|---|---|---|
| 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 | Catalog Sync | CircaOS Connector |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 2 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Catalog Sync | CircaOS Connector |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $99/month | $50/month(ahead) |
| Longest free trial | 14 days | 14 days |
| Plans listed | 3 | 3 |
Listing
| Measure | Catalog Sync | CircaOS Connector |
|---|---|---|
| Shopify category rank | #559 | #248(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 4, 2026 | May 19, 2026 |
| Languages | 2 | 1 |
| Developer | FashionStockPro | Circa Systems |
FAQ
Catalog Sync and CircaOS Connector: common questions
- Is Catalog Sync or CircaOS Connector cheaper?
- Only Catalog Sync lists a free plan. Paid plans start at $99/month for Catalog Sync and $50/month for CircaOS Connector. 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?
- Catalog Sync lists 6 the others don’t mention, such as Automatic, Bulk, Manual, Multi-store. CircaOS Connector lists 8 the others don’t mention, such as Barcode scanning, Barcodes, Data import and export, Historical reports. 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 Catalog Sync, Oct 14, 2026 for CircaOS Connector; 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 Catalog Sync, Oct 14, 2026 for CircaOS Connector. 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.