Kark: Multi Location Inventory vs PolyStock: Locations Inventory
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026 for Kark, Feb 19, 2026 for PolyStock.
The short answer
- PolyStock lists 5 features Kark’s listing doesn’t mention, including Conditional logic, Hide out-of-stock, Low stock alerts.
Head to head
Display location inventory information on product pages
- United States
- Canada
- Australia
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Basic
- · Advanced style customization
- · Inventory information on product pages
- · Location stock widget for product pages
- · Multi location stock display
- · Support for bundled products
Pro
- · Click & collect stock availability
- · Filter by location stock via metafields
- · Geolocation & store locator search
- · Incoming inventory & PO stock on pages
Pro Plus
- · Back in stock alerts per location
- · Location inventory JSON metafields
- · Store selector for location purchasing
Enterprise
- · Assign warehouse locations to companies
- · B2B & B2C inventory segregation
- · Company-specific inventory allocation
- · Restrict locations by customer tags
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureA must-have for Shopify merchants with multiple locations: physical stores, warehouses, and click & collect points. Show stock levels and incoming inventory per location on product pages. Let customers geosearch a store locator to find nearby available stock. Build smart collections and filters by location availability. Restrict ordering by customer tags for B2B wholesale & company accounts.
A must-have app for merchants with multiple locations and languages. Display accurate stock information directly on your product page to improve customer experience and conversion rates. Alter colors, labels and more to match your branding.
- Display location inventory information on product pages.
- Tag products based on location availability & sync metafield for filtering.
- Display product inventory only for the location associated with a customer.
- Show accurate stock data per location - "In Stock", "Low Stock", "Out of StocK"
- Change colors and labels to match your branding
- Add translations for your labels to reach customers internationally
- Reduce cart abandonment by hiding unavailable locations
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 |  Kark |  PolyStock |
|---|---|---|
| Detected stores | 938 | Not published |
| Net store change, 28 days | −5 | 0 |
| Stores added, 28 days | 13 | Not enough data |
| Big-brand share | 23% | Not enough data |
| Top store categories | Apparel & Accessories, Sporting Goods, Home & Garden | Not published |
| Top store countries | United States, Canada, Australia | Not published |
Reviews
| Measure | Kark | PolyStock |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 129 | Not published |
| New reviews, 28 days | 4 | Not enough data |
| Reviewers a year or more in | 47% | Not enough data |
FAQ
Kark and PolyStock: common questions
- What features does each app list that the other doesn’t?
- Kark lists 2 the others don’t mention, such as Custom HTML, Custom pricing. PolyStock lists 5 the others don’t mention, such as Conditional logic, Hide out-of-stock, Low stock alerts, Preview. 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 Nov 8, 2026 for Kark, Feb 19, 2026 for PolyStock; 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 Nov 8, 2026 for Kark, Feb 19, 2026 for PolyStock. 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.