★★★★★
The app stopped syncing after the last update and support took a week to reply. We lost orders during the outage and had to switch to a competitor.
Duplicup ‑ Duplicate SKU Sync
by Stokow
Sync duplicate products & variants with the same SKU. Sell duplicates without overselling!
Inventory optimization
Free plan
- Rating
- 5.0
- Reviews
- 4
- Pricing from
- $19.99/mo
- Launched
- May 2026
First seen 18 Sep 2026 · Data updated 1 week ago
Worst recent reviews
1- and 2-star reviews reveal what this app gets wrong: the gaps a competitor could fill.
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.
Highlights
- 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.
Languages
English, German, and Spanish