Best Appifyfor Shopify merchantsBest Appifyfor Shopify merchants
Automatically sync inventory across products and variants with the same SKU. Prevent overselling and easily manage duplicate listings with Duplicup.
Free plan available, paid plans from $13.99/month. Prices are the published USD list prices on the Shopify App Store and exclude usage charges.
| Plan | Price |
|---|---|
| Starter Free | Free |
| Growth | $13.99/month |
| Pro | $29.99/month |
| Enterprise | $139.99/month |
The ladder spans 10× from the cheapest paid plan to the most expensive, so the price you start on is unlikely to be the price you stay on — check which limit moves you up a tier.
From our daily App Store rank tracking and review history — signals a static listing doesn't show.
Measured against the 220 reviewed apps in Inventory optimization, where it currently sits at #111 of 689 listings.
| Duplicup ‑ Duplicate SKU Sync | Inventory optimization median | |
|---|---|---|
| Rating | 5 | 5 |
| Reviews | 5 | 5 |
Review volume is around the middle of the category, so read the rating as a real but not decisive signal.
The most-reviewed apps in Inventory optimization, with their current rating and entry price.
| App | Rating | Reviews | Price from | Compare |
|---|---|---|---|---|
| QuickSync: Etsy Integration | 4.8 | 2,014 | $19/mo | compare |
| EasyScan Inventory & Barcode | 5 | 377 | $9.99/mo | compare |
| Inventory Management ‑ Assisty | 4.8 | 359 | $19/mo | compare |
| Bundles.app ‑ Inventory Sync | 4.9 | 323 | $19/mo | compare |
| Prediko Inventory Management | 4.9 | 265 | Free | compare |
| Starshipit shipping automation | 3.9 | 209 | $35/mo | compare |
| Stockie Inventory Management | 4.9 | 167 | $4.99/mo | compare |
| MB Push Down Hide Out of Stock | 4.7 | 156 | $4.99/mo | compare |
Duplicup ‑ Duplicate SKU Sync has a free plan, and paid plans start at $13.99 per month. The free tier is normally capped on volume, so check the limit against what your store does today.
Duplicup ‑ Duplicate SKU Sync publishes 4 plans: Starter Free (free), Growth at $13.99/month, Pro at $29.99/month, Enterprise at $139.99/month. These are list prices from the Shopify App Store and exclude any usage-based charges.
Duplicup ‑ Duplicate SKU Sync holds 5 out of 5 from 5 merchant reviews. That is a small sample, so weigh the rating lightly — read the most recent reviews and judge the app on its features and support instead.
The most-reviewed alternatives in Inventory optimization are QuickSync: Etsy Integration, EasyScan Inventory & Barcode and Inventory Management ‑ Assisty. The comparison table above shows each one's rating, review count and entry price.
Is this your app?
You can buy a clearly labelled sponsored placement next to this data. We never reorder the rankings for money, so what you buy is an extra labelled slot, not a better position.
See how it worksRun a free audit of your store to see what you already have installed, which apps overlap, and where you are paying twice.
Run a free store audit