StockPool ‑ Shared Inventory vs VSI: Variants Shared Inventory
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 30, 2026 for StockPool, Nov 9, 2026 for VSI.
The short answer
- Only StockPool lists a free plan. Paid plans start at $5/month for StockPool and $4.99/month for VSI.
- StockPool lists 7 features VSI’s listing doesn’t mention, including Analytics, Low stock alerts, Out of stock notifications.
Head to head
- United States
- Germany
- Spain
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
Starter
Pro
Ultra
BASIC
- · Applicable to Basic Shopify plan.
STANDARD
- · Applicable to Standard Shopify plan.
ADVANCED
- · Applicable to Advanced Shopify plan.
PLUS
- · Applicable to Shopify Plus plan.
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureStockPool helps merchants sell products that share the same parts, materials, blanks, or ingredients. Create reusable components, connect them to Shopify products, and build recipes that calculate sellable inventory from the limiting component. StockPool keeps managed product inventory aligned with component stock and gives teams a clear sync log for support.
Variant Shared Inventory app provides a seamless variants stock management solution to merchants who have the same variations shared across different products and want to centralize their stock management. With variant inventory tracker you group multiple variants together and add a single inventory for all variants.
- Track shared inventory for kits, bundles, and made-to-order products.
- Build product recipes that calculate sellable stock from limiting components.
- Sync managed Shopify inventory when component stock changes.
- Prevent overselling of products with shared components
- Easily manage your variant stocks by adding a shared inventory
- Create shared inventories by grouping multiple variants together
- Group variants from main products. Set-up quantity multiplier to reduce quantity
- App automatically reduces stock from shared inventory on sale
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 |  StockPool |  VSI |
|---|---|---|
| Detected stores | Not published | 29 |
| Net store change, 28 days | 0 | −2 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Apparel & Accessories, Home & Garden, Food, Beverages & Tobacco |
| Top store countries | Not published | United States, Germany, Spain |
Reviews
| Measure | StockPool | VSI |
|---|---|---|
| App Store rating | Not published | 2.9 ★ |
| App Store reviews | Not published | 15 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
StockPool and VSI: common questions
- Is StockPool or VSI cheaper?
- Only StockPool lists a free plan. Paid plans start at $5/month for StockPool and $4.99/month for VSI. 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?
- StockPool lists 7 the others don’t mention, such as Analytics, Low stock alerts, Out of stock notifications, Restock notifications. VSI lists 3 the others don’t mention, such as In-stock display, Inventory tracking, Variants display. 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 30, 2026 for StockPool, Nov 9, 2026 for VSI; 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 30, 2026 for StockPool, Nov 9, 2026 for VSI. 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.