Duplicup ‑ Duplicate SKU Sync
The reviews are overwhelmingly positive, with every reviewer giving the app 5 stars. A major strength highlighted throughout is the support team, especially Aviad, who is repeatedly praised for being responsive, helpful, and willing to go above and beyond to solve unusual or custom setup needs. Reviewers also value the app’s core functionality: it helps prevent overselling, keeps shared inventory and SKUs in sync across variants, locations, and duplicate listings, and saves time by eliminating manual headaches. Several users mention that the app solved problems other tools could not, and some appreciated quick feature additions or custom coding to fit their store’s workflow. There are very few negative comments in these reviews, but the main implied drawback is that some merchants had tried other apps that failed to work as promised, which suggests this app is often chosen after frustration with alternatives. A few reviews also indicate that setup or customization may require assistance from the support team, though this is presented positively because the team handled it well. Overall, the feedback suggests the app is reliable, flexible, and backed by exceptional customer service.
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Everything about this app is perfect for me. I had created duplicate listings for my 2 stores and had tags to identify where the products were. But with the last app I used this did not prevent overselling even though it was supposed to. The support I received from Aviad was beyond what I anticipated. He found a way to make this work! What a relief. We all know how awkward it is to oversell and disappoint our customers. Thank you Aviad and the Duplicup team!!!
The customer service was amazing in helping me get everything set up for my release and ensuring the app was working correctly. A must have for brand owners and sellers
Hi SAAINTUARY team! Thank you for trying Duplicup. I am so sorry to hear about the items being added to your cart twice. While our app typically runs only in the background and doesn't interact with the cart, we want to be absolutely sure we understand what happened here. We would be more than happy to look into this with you and help get it fixed, whether it's an unexpected interaction with our app or a theme conflict. Please reach out to our support with a few details on how to reproduce the issue so we can investigate and solve this together!
We looked all over for a solution and finally found this. We had a specific issue that required some some custom coding to get it working. Aviad was always on top of it and went above and beyond to make sure Duplicup worked perfectly with our store. Highly, highly recommend.
I’ve tried several other apps for managing shared inventory across variants and locations, and none of them quite delivered. This one finally does. Everything stays perfectly in sync, which has saved us a huge amount of time and eliminated the constant headaches we used to deal with. What really sets it apart is the support. It’s incredibly fast, genuinely helpful, and the team goes above and beyond. Any time we’ve reached out, we’ve gotten clear, thoughtful responses almost right away. That level of care makes a massive difference. If you’re looking for a reliable solution that actually works, this is the one. Highly recommend.
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!
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