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  1. xpay

  2. Shopify apps

  3. Inventory - Other

  4. Duplicate SKU Sync Master

Duplicate SKU Sync Master

by Thalia Tech

3.0

(15 reviews)

37/100 · Limited evidenceFree to install. Free trial available.
Best suited for stores managing duplicate SKUs across variants or multiple channels who need inventory synced automatically.

Sync stock between products & variants having same SKU. Sell duplicate SKUs without overselling! Duplicate SKUs help to diversify catalog, improve SEO & marketing, create bundles & manage multichannel selling. If item stock changes, this app will sync the inventory level across all duplicate SKUs in near real-time. You dont have to worry about overselling or manually updating inventory for each duplicate SKU. Sell same SKUs online & on POS. Sync POS SKUs inventory with different pricing. Stock quantity remains common & in sync. Build bundles with SKUs that adjust stock with same SKUs. Duplicate SKUs help to diversify catalog, improve SEO & marketing, create bundles & manage multichannel selling. If item stock changes, this app will sync the inventory level across all duplicate SKUs in near real-time. You dont have to worry about overselling or manually updating inventory for each duplicate SKU. Sell same SKUs online & on POS. Sync POS SKUs inventory with different pricing. Stock quantity remains common & in sync. Build bundles with SKUs that adjust stock with same SKUs. more Easy to use. Activate sync with a click of a button. No complicated setup. Build for scale. Sync unlimited duplicate SKUs and any number of orders. Multi-location SKU Sync. Match stock levels at all the locations. Analyze. Get a snapshot of duplicate SKUs and surface mismatched stock levels. Quick restock. Update stock of all the same SKUs together with a single click.

Copy from the Shopify App Store listing, unedited.
View on ShopifyCompare the plansSee the scorecard
Who it’s for
Inventory - Other
What it moves
Bottom line

fulfilment cost and post-purchase experience

What it costs
From $5/mo

3 tiers

How it’s supported
37/100

Limited evidence · from 15 reviews

What it does

Easy to use. Activate sync with a click of a button. No complicated setup.

Build for scale. Sync unlimited duplicate SKUs and any number of orders.

Multi-location SKU Sync. Match stock levels at all the locations.

Analyze. Get a snapshot of duplicate SKUs and surface mismatched stock levels.

Quick restock. Update stock of all the same SKUs together with a single click.

Plan fit
What each step up actually buys you

This developer's plans are separated by features, not by how big your store is — so there is no volume that picks a tier for you. Here is what each one adds over the one below it.

BASIC PLAN (FREE)
Free to install
You start with

For SHOPIFY STAFF Stores

For SHOPIFY PARTNER Stores

For SHOPIFY TRIAL Stores

For PAUSE AND BUILD Stores

All Features

Unlimited SKUs

BASIC PLAN
$5/month
Adds

For SHOPIFY BASIC stores

Unlimited Updates

Sync History

1-Click Restock

Multi-location Support

ESTABLISHED PLAN
$12/month
Adds

For SHOPIFY & ADVANCED SHOPIFY stores

HIGH VOLUME PLAN
$20/month
Adds

For SHOPIFY PLUS stores

Listed as “Free to install. Free trial available.”. Plan contents change — confirm on the listing before you install.
Pricing
Free to install. Free trial available.
BASIC PLAN (FREE)

Free to install

For SHOPIFY STAFF Stores
For SHOPIFY PARTNER Stores
For SHOPIFY TRIAL Stores
For PAUSE AND BUILD Stores
All Features
Unlimited SKUs
BASIC PLAN

$5/month

Lowest paid plan
For SHOPIFY BASIC stores
Unlimited SKUs
Unlimited Updates
Sync History
1-Click Restock
Multi-location Support
ESTABLISHED PLAN

$12/month

For SHOPIFY & ADVANCED SHOPIFY stores
Unlimited SKUs
Unlimited Updates
Sync History
1-Click Restock
Multi-location Support
HIGH VOLUME PLAN

$20/month

For SHOPIFY PLUS stores
Unlimited SKUs
Unlimited Updates
Sync History
1-Click Restock
Multi-location Support
Plans as listed on the Shopify App Store. Always confirm current pricing before installing.

37

/ 100
Limited evidence
low confidence

Scored on 15 merchant reviews we hold for Duplicate SKU Sync Master, across five checks. Every figure is computed from those reviews — expand any row to see the counts behind it.





Computed from the 15 reviews we hold, with 12-month windows measured to 2026-08. This scores the public review record — it is not a review of the software itself, and a low score often means we hold little evidence rather than poor evidence.
Review history
2021–2025 · 15 reviews read
Reviews per year
20212 reviews
20227 reviews
20231 reviews
20241 reviews
20254 reviews
What merchants say

3.0

15 reviews
5★60%
4★0%
3★0%
2★20%
1★20%
Developer replies
100%
of reviews get an answer
Reviewed at 12m+
27%
had used it a year when they wrote
From 15 reviews read. Typical reviewer had used the app for 4 months. Most merchants review in their first month, so this reflects when people write — not how long they stay.
Recent merchant reviews

The newest 8 of 15. Open one to read it in full, with the developer's reply where there is one.

i upgraded from the free plan and now i am having issues with inventory. products that have been out of stock for weeks magically have new inventory, resulting in oversold products. Its a pain, especially when dealing with TikTok Shop's cancellation policies

Developer repliedThank you for taking the time to share your feedback—we truly appreciate it. We’re happy to let you know that the issue you experienced has been resolved in the latest version of our app. We’ve also reached out via email to follow up and ensure everything is now running smoothly, but we haven’t heard back yet. We’re glad you’ve continued using the app, and we’d love the opportunity to assist further if anything still needs attention. Please feel free to reply to our support tickets or contact us directly at duplicateskusync@newaccount1607938888582.freshdesk.com—we’re here and happy to help with anything you need. Looking forward to hearing from you! Show more

We recently discovered that some items have not synced properly for over five months, preventing us from selling these products. After reporting the issue, we were offered only $24 as compensation, despite having paid $120 during this period. As a result, we will now explore alternative solutions.

Developer repliedThank you for taking the time to share your feedback—we truly appreciate it. We’re happy to let you know that the issue you experienced has been resolved in the latest version of our app. We’ve also reached out via email to follow up and ensure everything is now running smoothly, but we haven’t heard back yet. We’re glad you’ve continued using the app, and we’d love the opportunity to assist further if anything still needs attention. Please feel free to reply to our support tickets or contact us directly at duplicateskusync@newaccount1607938888582.freshdesk.com—we’re here and happy to help with anything you need. Looking forward to hearing from you! Show more

This app is great! I sell personalized laser engraved tumblers in a much of different colors. Each color has its own SKU, and each SKU is used across a large number of product listings. This app lets me accurately control the inventory so I can keep track of how much product I have in stock. I tried several different inventory control apps before I settled on the one. The price is right an the support is great!

Developer repliedThank you so much for your positive feedback and for taking the time to post this review. It's our customers that allow us to constantly improve the app experience! Wish you good luck! Show more

5/2025 UPDATE: Original issue was fixed from 2021, but now I have a new issue where the app is removing x2 the amount of items being sold. Example, I stocked an item at 15 pcs. 4 were sold. It synced the skus to have only 7 left in stock. I have to keep babysitting my sales again. As the other review from March 2025 mentioned, there is a high chance inventory hasn't been syncing properly for months. I noticed one of my items went out of stock really quick and now i'm left with a lot of stock that could've been sold during the height of popularity of my item. What am I paying a plan for? Their support team got back to me, basically said if an order contains 2 different items with the same sku, syncing will glitch. If your item sells fast and orders are made back to back, syncing will glitch. If your customers don't wait for the app to finish syncing inventory(may take seconds to minutes) then syncing will glitch. Basically the app has now become trash which is the complete opposite of my original experience using it back when I was make back to back sales without a problem. Unfortunately will have to be on the lookout for a new app. I really needed an app that did exactly what this app offers, or at least described to offer. I make custom acrylics of different designs but essentially all using the same base material. I have multiple designs using the same sku. Before going live I tested the app and it seemed to work. Now that my shop has gone live the syncing won't work at all. I still have to manually edit the inventories now. I contacted support and I'm hoping to get a reply soon because I can't keep watch over my shop for hours. Once they get back to me I hope they can fix this or else I'm gonna need to find another solution.

Developer repliedWe appreciate you taking the time to review our app. Sincere apologies for having a less than perfect experience with the app. There was a glitch in the app that prevented items having over 40 duplicate SKUs from being synced correctly. We have fixed that problem and the items will now sync correctly. Due to the weekend holidays there was delay in getting this done. Let us know in case you have any further issues. We're always happy to help. Show more

Such a lifesaver!!! I had a small hiccup in getting it to work and they were amazingly helpful and responsive, very quickly. Now it works like a charm and is exactly what I needed for my listings to function perfectly.

Developer repliedWe're happy you're pleased with the results and that we were able to help. If there's anything else we can do to help, please let us know. And we really appreciate you taking the time to share your feedback! Show more

Works great! -Here are 87 more characters to reach the 100 character minimum for review submission.

Developer repliedThanks for the awesome! We work hard to meet expectations like yours, and we’re happy to hear we hit the mark for you. Show more

Very pricy for the service. Not really satisfied. I will look for other solutions in the next future.

Developer repliedWe appreciate your honest review of the app. Our plans start with is $5 per month. This is ~ $0.17 per day. With this, we monitor the store 24x7 for syncing unlimited duplicate items. The charges help us run the servers and pay the salaries. Hope you understand. We are a small and a hardworking team focused to help online merchants be more productive. Show more

This has worked well for us in our case. We use this app to sync inventory between retail and wholesale products.

Developer repliedThank you for the 5 star review. It means a lot to us. Wish you good luck! Show more

Duplicate SKU Sync Master FAQ

Answered from this app's own listing and its full review record.

Best suited for stores managing duplicate SKUs across variants or multiple channels who need inventory synced automatically.

Paid plans start at $5/month, and run to $20/month across 3 published tiers. Prices are as listed on the Shopify App Store and can change — confirm before installing.

Duplicate SKU Sync Master's plans are separated by features rather than by store size — none of the tiers is capped on a volume you could state up front. Compare what each step adds over the one below it rather than trying to size yourself into a tier.

On our scorecard Duplicate SKU Sync Master rates 37 out of 100 — limited evidence — read from 15 merchant reviews. The developer has published replies to 15 of 15 reviews. The score reflects what the review record shows, nothing more.

15 merchants have reviewed Duplicate SKU Sync Master, averaging 3.0 out of 5. We hold the review history from 2021 to 2025, which is what the year-by-year chart on this page is built from.

Quick facts
At a glance
Merchant rating

3.0 / 5 · 15 reviews


New reviews, last 12 months

0


Developer replies

15 of 15 reviews


Typical reviewer had used it

4 months


Pricing

Free to install. Free trial available.


On the App Store since

January 6, 2021


Review history held

2021 – 2025

Categories
Inventory - OtherInventory optimization
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