Guides

Best Shopify inventory management apps, by the job you actually have

Twelve apps compared on the two things listings hide: what each one meters, and what happens when you leave. Most 'inventory management' searches are really one of two different problems, and the right app depends on which.

Updated 16 September 2026

There is no single best Shopify inventory management app, because the phrase covers two unrelated jobs. One is knowing what to reorder and when — purchase orders, forecasting, stocktakes, landed cost. The other is keeping the same item in agreement across places you sell it — two stores, ten listings, a marketplace. The tools that do the first are three to five times the price of the tools that do the second, and most of the merchants who buy the expensive one only needed the cheap one.

So this page is ordered by job rather than by rank, with the figures each listing published on 16 September 2026.

The field at a glance

What the price is really charging you for

The prices look comparable. The meters do not, and that is where the bill actually comes from.

• Per product or per variant — Syncio, Synkro, Tipo, Easify, SyncLogic. A large catalogue that sells slowly is expensive here, and a 50,000-variant store is on a top plan before it takes an order.
• Per order or per sale — Trunk, Sumtracker, Horse. A small catalogue that sells hard is expensive here instead. Sumtracker’s cap is 2,500 orders a year, which is the one number on this page most likely to be misread as monthly.
• Per connected store — Multi-Store Sync Power meters products per connected store, so a third store is a third bill, not a third of one.
• Per feed — syncX charges for update feeds as well as products, which is the right shape for suppliers and an odd one for two of your own storefronts.
• Several at once — Syncerize meters source stores, product imports and orders together, so the plan you need is decided by whichever ceiling you hit first.

Work out which axis your shop is heavy on before comparing monthly prices. The same shop can be on a $9 plan and a $59 plan depending only on which meter the vendor chose.

If the job is knowing what to reorder

This is the Stocky-shaped hole, and no sync app fills it.

Sumtracker is the broadest: purchase orders, replenishment suggestions, bundles that draw down components, stocktakes, and multichannel coverage across Amazon, eBay, Etsy and Walmart. $59/month for Manage, $119 for Replenish, both capped at 2,500 orders a year.

Horse Inventory is the lighter, cheaper end — purchase-order generation, demand forecasting and bundles, free up to 50 sales a month and $20 to $50 above that. It also does multi-store sync, which makes it the one app on this page that genuinely spans both jobs at a small-shop price.

Inventory Planner, Prediko and Fabrikatör are the other names in this tier. They are forecasting-first tools priced accordingly, and worth a look if the reorder decision is the thing costing you money.

If you are here for this job, stop reading now: everything below is the other problem.

If the job is two stores that disagree

This is the narrow tier, and it is much cheaper. Every app here matches items by SKU and copies quantities between stores you control.

Syncio is supplier-to-retailer shaped: a supplier publishes, retailers import, orders and payouts flow back. Strong fit for a marketplace of independent brands, heavier than you need for two of your own storefronts.

Multi‑Store Sync Power and Tipo both sync products, collections and inventory across your own stores, with Tipo the cheapest entry on this page at $9 for 1,000 variants.

Synkro holds the highest rating in the tier — 5.0 across 105 reviews — and prices by products in four clean steps to unlimited at $100.

SyncLogic has one plan, $19.99 for up to 10,000 products, and a 30-day trial, which is unusually long and genuinely useful for this kind of purchase. Its 3.9 rating is the lowest here and worth reading the detail of rather than dismissing.

If the two stores are a Shopify Plus main store and an expansion store, that case has its own shape and its own guide: expansion stores and the shared-inventory problem.

Easify Inventory Sync is the one built first for one store — the same SKU on several products, several locations — with multi-store as a secondary mode.

If the job is marketplaces

Trunk syncs stock in real time across Shopify, Amazon, eBay, Etsy and TikTok, and handles bundles properly. It is priced by monthly orders and starts at $35, and it is the most-loved app in this whole category.

QuickSync sells one integration per app — Etsy, eBay, Amazon — at $19 and up, with extra integrations charged separately.

syncX: Stock Sync is the supplier-feed specialist: CSV, FTP, Google Sheets, APIs, on a schedule.

The question no listing answers: what happens when you leave

We read 2,603 reviews across nine of these apps. Nineteen mention disconnecting or uninstalling — and ten of those nineteen are one-star reviews.

The reports are specific. A Multi-Store Sync Power user described the app setting “my entire inventory quantity to zero (0) across all products and variants in my primary shop” after they nominated it as the source. A Tipo user connected two stores, thought better of it, and uninstalled from both within two minutes — the damage was already done. A QuickSync reviewer was charged twice after uninstalling, because Shopify app charges are tied to the subscription rather than the install.

None of this makes those apps bad; all three are well rated by thousands of merchants between them. It makes the exit a thing to ask about before you install, because uninstalling is not an undo button. Three questions, in writing, to any vendor here:

1. When I disconnect a store, what changes in each store?
2. Do you create products in the destination store, and what happens to them when I leave?
3. Is billing cancelled by uninstalling, or separately?

Where StockUnison sits, and what it does not do

StockUnison is in the second tier only: stock quantities between Shopify stores you own, or between listings that share a SKU inside one store. No purchase orders, no forecasting, no stocktakes, no marketplaces, no product or price copying. If the first half of this page described your problem, it is the wrong tool.

Inside that narrow job it differs on three things this page has been about. It meters live connected stores rather than products, variants or orders, so catalogue size is never priced — the same $19 plan covers 500 variants or 250,000. Every connection starts in preview mode, which calculates and logs every write without making one, so you see what it would do to your real catalogue before it does anything. And disconnecting changes nothing in either store, because it never creates a product in a connected store and never deletes anything anywhere.

The honest caveat: it launched in August 2026 and has no reviews yet, against Trunk’s 408 and syncX’s 916. The free plan runs matching and difference checks across your whole catalogue without writing, so it can be tested against a real store without paying anyone.

Ratings, review counts and prices read from each app's public Shopify App Store listing on 16 September 2026. All of them move; every app above is linked so you can check today's figures.