NASP Connected Inventory vs Variant Stock Sync
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 6, 2026 for NASP Connected Inventory, Oct 14, 2026 for Variant Stock Sync.
The short answer
- Only Variant Stock Sync lists a free plan. Paid plans start at $9.99/month for NASP Connected Inventory and $9.99/month for Variant Stock Sync.
- Variant Stock Sync lists 12 features NASP Connected Inventory’s listing doesn’t mention, including AI optimization, Automatic, Bulk.
Head to head
Sync inventory quantity across product, variant and bundle
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Basic
- · Unlimited bundle groups
- · Unlimited manual groups
- · Unlimited smart groups (same SKU)
Advance
- · Connect your favorite AI agents
- · Everything in the Basic plan
- · Manage inventory groups through the API
Free
- · Unlimited variants per product
- · Up to 3 products
- · Webhook synchronization (real time)
Pro
- · Email support
- · Unlimited variants per product
- · Up to 50 products
- · Webhook synchronization (real time)
Business
- · Automatic detection by AI
- · Email support
- · Scheduled synchronization (3PL)
- · Unlimited Products
- · Unlimited variants per product
- · Webhook synchronization (real time)
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureConnected Inventory synchronizes stock levels across your Shopify products and variants. Effortlessly link items by SKU, manually select products to connect, or define components for bundle products like gift hampers or wine boxes. This app fully supports Shopify’s multi-location inventory feature, ensuring accurate stock management.
Sync inventory between product variants sold in different quantities. When a customer buys a pack of 6, stock for packs of 1, 3, and 12 updates automatically. Set a multiplier for each variant, pick a reference, and the app keeps everything in sync via webhooks. Scheduled sync is available for stores using 3PL or external fulfillment providers. Ideal for bundles, multipacks, and wholesale quantities.
- Selling bundle and tracking the inventory of base products correctly
- Connect multiple products/variant’s inventory by assigning the same SKU
- Connect multiple products/variant’s inventory by manually picking
- Multiplier-based stock calculation for any bundle or pack ratio
- Real-time inventory sync between variants via Shopify webhooks
- Scheduled sync for 3PL and external fulfillment workflows
- Multi-location inventory filtering for complex warehouse setups
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 |  NASP Connected Inventory |  Variant Stock Sync |
|---|---|---|
| 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 | NASP Connected Inventory | Variant Stock Sync |
|---|---|---|
| App Store rating | 4.0 ★ | Not published |
| App Store reviews | 52 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | NASP Connected Inventory | Variant Stock Sync |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | $9.99/month | $9.99/month |
| Longest free trial | 7 days | Not listed |
| Plans listed | 2 | 3 |
Listing
| Measure | NASP Connected Inventory | Variant Stock Sync |
|---|---|---|
| Shopify category rank | #124 | #214 |
| Shopify App Charts | #3 on Pricing moves in Inventory optimization | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jan 9, 2017 | Apr 23, 2026 |
| Languages | 1 | 2 |
| Developer | Not A Side Project | Topicimes |
FAQ
NASP Connected Inventory and Variant Stock Sync: common questions
- Is NASP Connected Inventory or Variant Stock Sync cheaper?
- Only Variant Stock Sync lists a free plan. Paid plans start at $9.99/month for NASP Connected Inventory and $9.99/month for Variant Stock Sync. 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?
- NASP Connected Inventory lists 2 the others don’t mention, such as Multi-location, SKUs. Variant Stock Sync lists 12 the others don’t mention, such as AI optimization, Automatic, Bulk, Bulk processing. 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 6, 2026 for NASP Connected Inventory, Oct 14, 2026 for Variant Stock Sync; 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 6, 2026 for NASP Connected Inventory, Oct 14, 2026 for Variant Stock Sync. 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.