Duplicup ‑ Duplicate SKU Sync

Real-time sync by SKU across products to prevent overselling.

by Stokow · Launched: May 2026 · Free plan available.

5.0 (1) on Shopify Built for Shopify

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Sync duplicate products & variants with the same SKU. Sell duplicates without overselling!

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About Duplicup ‑ Duplicate SKU Sync

Duplicup helps you optimize your store by safely offering duplicate products and variants under multiple listings. Whether you are selling identical items on separate pages, improving SEO, or managing different prices for POS, simply give them the same SKU. Our app creates a shared inventory pool and syncs inventory across matching SKUs in real-time. No more manual stock updates or overselling, allowing you to confidently expand your product catalog. Sync shared inventory in real-time. Manually link variants or link SKUs. Sell an item through multiple product pages and track simple bundles. Multi-location SKU sync. Match stock levels at all your locations. Quick restock. Update stock of all the same SKUs together with one click. Easy to use. Activate sync with a click of a button. No complicated setup. Show more Show less

Last verified: July 21, 2026 · Fresh

App details

Developer: Stokow
Category: Orders & shipping
Pricing: Free plan available
Launched: May 2026
Rating: 5.0 (1) on Shopify

Key features

Available for ALL Shopify plans
All App Features Included
Up to 5 SKUs limit
Up to 50 Syncs per month
Limited Volume Processing

Integrations with:

Shopify Admin

3 plans · starts free · 7-day free trial

Starter

Free

Basic

$10.99/month

Unicorn

$16.99/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 1 Shopify App Store reviews

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We needed a slight tweak to an existing feature and we reached out and the devs had the feature added within a few days. No other SKU sync tool lets you manually link product skus. This is a game changer for our business and quite helpful. Thanks so much!

— Security & Privacy Tools | STS Collective

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