SimpleSync » Sync by SKU 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 3, 2026 for SimpleSync » Sync by SKU, Oct 14, 2026 for Variant Stock Sync.

The short answer

  • Only Variant Stock Sync lists a free plan. Paid plans start at $10/month for SimpleSync » Sync by SKU and $9.99/month for Variant Stock Sync.
  • Variant Stock Sync lists 12 features SimpleSync » Sync by SKU’s listing doesn’t mention, including AI optimization, Automatic, Bulk.

Head to head

App Store reviews

SimpleSync » Sync by SKU: 21
Variant Stock Sync: —

New reviews, 28 days

SimpleSync » Sync by SKU: 1
Variant Stock Sync: —
Open this comparison in ShoplistFree account. Every feature, store and change, side by side.
Pitch

Sync inventory between products and variants

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Categories
  • Inventory optimization
  • Inventory - Other
  • Inventory sync
  • Inventory optimization
Languages
  • English
  • French
  • English
Launched
Feb 6, 2014
Apr 23, 2026
Built for Shopify
Not badged
Not badged
Reviews per month
1 last full month
—
Detected stores
0active installs
0active installs
Most common store size
—
—
Top countries
—
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Momentum

New reviews each month

Review pace is the clearest public read on how fast an app is winning new merchants.

012AprOctMarMarAugAugSimpleSync » Sync by SKU: 1 reviews in April 2019SimpleSync » Sync by SKU: 1 reviews in May 2019SimpleSync » Sync by SKU: 1 reviews in October 2019SimpleSync » Sync by SKU: 1 reviews in August 2022SimpleSync » Sync by SKU: 1 reviews in March 2023SimpleSync » Sync by SKU: 1 reviews in October 2023SimpleSync » Sync by SKU: 1 reviews in March 2025SimpleSync » Sync by SKU: 1 reviews in May 2025SimpleSync » Sync by SKU: 2 reviews in August 2025SimpleSync » Sync by SKU: 1 reviews in April 2026SimpleSync » Sync by SKU: 1 reviews in August 2026
SimpleSync » Sync by SKUVariant Stock SyncCompleted months only
Free options
Free planFree trial
Free planFree trial
Monthly range
From $10 to $15/month
From $0 to $29.99/month
Plans
Shopify shops$10/month
7-day free trial
Shopify Plus shops$15/month
7-day free trial
FreeFree
  • · Unlimited variants per product
  • · Up to 3 products
  • · Webhook synchronization (real time)
Pro$9.99/month
  • · Email support
  • · Unlimited variants per product
  • · Up to 50 products
  • · Webhook synchronization (real time)
Business$29.99/month
  • · Automatic detection by AI
  • · Email support
  • · Scheduled synchronization (3PL)
  • · Unlimited Products
  • · Unlimited variants per product
  • · Webhook synchronization (real time)
Coverage
4 of 16 features25%
14 of 16 features88%
Unique strengths
  • Auto-processing
  • SKUs
  • AI optimization
  • Automatic
  • Bulk
  • Bulk processing
  • +8 more
Inventory optimization
57%4/7
71%5/7
Inventory management
60%3/5
80%4/5
Order management
50%1/2
50%1/2
Inventory sync
0%0/9
100%9/9
Notifications and reports
0%0/1
100%1/1
Sync type
0%0/8
100%8/8
2212onlybothonly
SimpleSync » Sync by SKUVariant Stock Sync16 features listed across both App Store listings

Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.

See every feature
Works with also listed by another
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How it sells itself

SimpleSync is very useful if you're selling different products that are physically the same. SimpleSync keeps the inventory of these items in sync. SimpleSync also helps you sell more when you're selling a unisex product. You're going to sell more items if you focus your product pages on men and women separately. Make two products in the Shopify admin, give them the same SKU and you're done!

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.

Key points
  • SimpleSync keeps the inventory in sync fast for items that share an SKU.
  • Sell an item through multiple product pages.
  • Inventory tracking for simple bundles where one item has tracked inventory.
  • 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
Screenshots
inventory dashboard
exclude listSimpleSyncstatus
Product variant multiplier and source configuration
Key features: webhook sync, 3PL sync, AI detectionDiagram showing automatic inventory synchronizationDashboard with webhook and scheduled sync settings

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.

Showing only the rows where the apps differ.

Adoption

MeasureSimpleSync » Sync by SKUVariant Stock Sync
Detected storesNot publishedNot published
Net store change, 28 days0estimated0estimated
Stores added, 28 daysNot enough dataNot enough data
Big-brand shareNot enough dataNot enough data
Top store categoriesNot publishedNot published
Top store countriesNot publishedNot published

Reviews

MeasureSimpleSync » Sync by SKUVariant Stock Sync
App Store rating4.5 ★Not published
App Store reviews21Not published
New reviews, 28 days1Not enough data
Reviewers a year or more inNot enough dataNot enough data

Pricing

MeasureSimpleSync » Sync by SKUVariant Stock Sync
Free planNot listedYes
Lowest paid monthly plan$10/month$9.99/month(ahead)
Longest free trial7 daysNot listed
Plans listed23

Listing

MeasureSimpleSync » Sync by SKUVariant Stock Sync
Shopify category rank#63in Inventory optimization#214in Inventory sync
Shopify App ChartsNot on this week’s chartsNot on this week’s charts
Built for ShopifyNoNo
LaunchedFeb 6, 2014Apr 23, 2026
Languages1English2French, English
DeveloperGazeboTopicimes

FAQ

SimpleSync » Sync by SKU and Variant Stock Sync: common questions

Is SimpleSync » Sync by SKU or Variant Stock Sync cheaper?
Only Variant Stock Sync lists a free plan. Paid plans start at $10/month for SimpleSync » Sync by SKU 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?
SimpleSync » Sync by SKU lists 2 the others don’t mention, such as Auto-processing, 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 3, 2026 for SimpleSync » Sync by SKU, 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 3, 2026 for SimpleSync » Sync by SKU, 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.