SimpleSync » Sync by SKU vs StockTwin
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 13, 2026 for StockTwin.
The short answer
- Only StockTwin lists a free plan. Paid plans start at $10/month for SimpleSync » Sync by SKU and $9.99/month for StockTwin.
- StockTwin lists 13 features SimpleSync » Sync by SKU’s listing doesn’t mention, including Analytics, Automatic, Barcodes.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Shopify shops
Shopify Plus shops
Free
- · Limited sync (orders & refunds)
- · Manual SKU discovery
- · Manual sync
- · Up to 5 SKU groups
Pro
- · Auto-reconcile
- · Barcode sync
- · CSV export
- · Full sync mode
- · Low stock alerts
- · Safety stock
Business
- · All Pro features included
- · Bundles & kits
- · CSV import & export
- · Exclusion rules
- · Sync rules
- · Unlimited SKU groups
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSimpleSync 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!
Selling the same product under multiple listings, photos, or collections? StockTwin links every variant that shares a SKU or barcode and keeps their inventory perfectly in sync across all your locations, in real time. When one sells, the rest update instantly, so you never oversell or show wrong stock counts again.
- 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.
- Sync stock across duplicate SKUs and barcodes in real time
- Sell bundles and kits without overselling their components
- Reserve safety stock for wholesale and off-channel sales
- Bulk sync hundreds of SKUs, import/export setup as CSV
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 |  SimpleSync » Sync by SKU |  StockTwin |
|---|---|---|
| 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 | SimpleSync » Sync by SKU | StockTwin |
|---|---|---|
| App Store rating | 4.5 ★ | Not published |
| App Store reviews | 21 | Not published |
| New reviews, 28 days | 1 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | SimpleSync » Sync by SKU | StockTwin |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | $10/month | $9.99/month(ahead) |
| Longest free trial | 7 days | 7 days |
| Plans listed | 2 | 3 |
Listing
| Measure | SimpleSync » Sync by SKU | StockTwin |
|---|---|---|
| Shopify category rank | #63(ahead) | #156 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Feb 6, 2014 | Jun 3, 2026 |
| Languages | 1 | 1 |
| Developer | Gazebo | Craft Lab |
FAQ
SimpleSync » Sync by SKU and StockTwin: common questions
- Is SimpleSync » Sync by SKU or StockTwin cheaper?
- Only StockTwin lists a free plan. Paid plans start at $10/month for SimpleSync » Sync by SKU and $9.99/month for StockTwin. 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 1 the others don’t mention, such as Auto-processing. StockTwin lists 13 the others don’t mention, such as Analytics, Automatic, Barcodes, Data import and export. 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 13, 2026 for StockTwin; 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 13, 2026 for StockTwin. 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.