Guides

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

Twenty-three apps compared on the three things an App Store listing never puts together: what the plan really meters, how often it disappoints someone enough to say so, and what happens to your catalogue when you leave.

Updated 2 November 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 everywhere you sell it — two stores, ten products, a marketplace. The first tier’s entry prices run from $4.99 to $299 a month, six of its eleven apps want $49 or more, and a seventh will not publish a price at all. The second tier starts at $7 and nothing in it costs more than $35. Most of the merchants who buy the expensive one only needed the cheap one.

A lot of people are asking this question right now for one specific reason. Shopify shut Stocky down on 31 August 2026, along with its APIs, having delisted it from the App Store on 2 February. Shopify’s migration notice promises read-only access to export your data “for at least 90 days” after the shutdown, which puts the end of that window around the end of November — and purchase-order history does not move into the admin by itself. Stocky did the first job, which is why “what replaces Stocky” and “best inventory app” are being typed by the same people. Replacing it job by job is its own guide.

The short answer, by job

• Knowing what to reorder, on a small budget: Stockie, from $4.99, with the cleanest review record in its tier.
• Purchase orders, bundles and marketplaces in one app: Sumtracker.
• Forecasting first, priced by revenue: Prediko.
• Two or more of your own Shopify stores sharing one stock count: StockUnison, which keeps one count per SKU that a sale in any store lowers, two-way, previewed before anything is written. It is ours, and new, with no reviews yet.
• One store in charge, its counts copied into the others: Synkro (highest-rated in the tier), Tipo (cheapest entry), or StockUnison’s one-way mode.
• Inventory plus product and collection copying between stores: Multi-Store Sync Power or Tipo.
• Supplier and retailer stores, with a marketplace and order splits: Syncio.
• One item sold as several products inside one store: Easify or StockUnison.
• Shopify plus Amazon, eBay, Etsy or TikTok: Trunk.
• Supplier feeds by CSV, FTP or Google Sheets: syncX: Stock Sync.

So this page is ordered by job rather than by rank, with every figure read from each app’s own App Store listing on 18 September 2026. Each app’s name links back to the listing it was read from. The ≤3★ column is the share of that app’s reviews rating three stars or below, worked out from the listing’s own rating breakdown — it separates these apps far better than the average, which sits between 4.5 and 5.0 for all but one of them.

The field at a glance

Apps for knowing what to reorder

Apps for keeping the same item in agreement

What the price is really charging you for

The prices look comparable. The meters do not, and the meter is where the bill actually comes from. Two of these apps are not counting your inventory at all: Prediko bands its price by your store’s revenue, and Assisty by which Shopify plan you are on. Neither number has anything to do with how much stock you hold.

• Products or variants — Syncio, Synkro, Tipo, Easify. 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 connected store — Multi-Store Sync Power meters products per connected store, and SyncLogic charges its single $19.99 plan per connected shop. A third store is a third bill, not a third of one.
• Orders or sales — 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.
• Revenue — Prediko steps at $100k, $500k and $2M; Fabrikatör at $500k, $1.5M and $2.5M, and adds $0.75 for every backorder past the first fifty. The bill tracks how well you are trading, not what you are storing.
• Your Shopify plan — Assisty is $19 on Basic, $59 on Advanced and $199 on Plus. Upgrading Shopify raises this bill on its own.
• Tracked SKUs and locations together — Stockful starts at 2,000 SKUs and one location, then charges $5 per extra 500 SKUs and $5 per extra location, so a second warehouse costs the same as a thousand more SKUs. Genie counts variants and suppliers, which is the only plan here that gets more expensive because you buy from more people.
• Update feeds — syncX charges for feeds as well as products, which is the right shape for suppliers and an odd one for two of your own storefronts.
• Integrations — QuickSync charges the plan price again for each extra marketplace, so two channels is close to two subscriptions rather than a small increment.
• Several ceilings at once — Syncerize meters source stores, product imports and orders; SKULabs caps orders, users, stores, warehouses and SKUs together. The plan you need is decided by whichever you hit first.
• Nothing published — Inventory Planner quotes, so the only way to compare it is to ask.

Every sync app’s current plans, read again on 2 November 2026 across 30 apps, are in what every Shopify inventory sync app costs. Which axis your shop is heavy on matters more than the headline price: the same catalogue can land on a $9 plan or a $299 one depending only on what the vendor chose to count. How to shop this category without getting burned works through the rest of the questions.

If the job is knowing what to reorder

This is the Stocky-shaped hole, and no sync app fills it. Eleven apps above do, and they are nowhere near each other in price. We have not run them, and this page does not pretend to rank them — what it can do is read the pricing structure and the public record accurately, which is the part that decides your bill.

The cheap end, and the one nobody lists. Stockie starts at $4.99 and carries the cleanest record of any app on this page with a meaningful review base — 152 reviews and a 1.3% complaint share, beaten only by Trunk in the other tier. It is on none of the “best Stocky alternative” listicles we read. Horse Inventory is free to fifty sales a month and $20 to $50 above that, with purchase orders, forecasting and bundles — and it syncs between stores as well, which makes it the one app here that genuinely spans both jobs at a small-shop price. Stockful is $19.99 for 2,000 tracked SKUs at one location and is the closest thing on the App Store to Stocky’s shape, but 17 reviews is a new app rather than a proven one. Assisty has the largest review base in the tier at 358 and a real free tier, and charges by your Shopify plan.

The middle. Sumtracker is the broadest at this price: purchase orders, replenishment suggestions, bundles that draw down their components, stocktakes, and Amazon, eBay, Etsy and Walmart alongside Shopify. $59/month for Manage, $119 for Replenish, both capped at 2,500 orders a year — read that cap twice before committing, because it is annual and the tier above it is not a small step. Prediko is forecasting-first at $49 for stores under $100k of revenue, and Fabrikatör starts at $99 on the same revenue logic.

The expensive end. Inventory Planner by Sage publishes no price at all, and it is the one number in this table worth stopping on: at 12.5% its complaint share is five times Prediko’s and nearly ten times Stockie’s, on the same size review base as Stockie. It is the name most “Stocky alternative” listicles lead with, and that ubiquity is not the same as a safe default. It may well be right for a large operation; check the recent one-star reviews before assuming. Cogsy is $199 flat, on 13 reviews. SKULabs starts at $299 and is really a warehouse system — the right tool if you are picking, packing and shipping from your own building, and far too much if you only wanted to know what to reorder.

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 in this tier at $9 for 1,000 variants.

Synkro holds the highest rating in the tier — 5.0 across 106 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. Note that the plan is priced per connected shop, so the single price is not a single bill. Its 3.9 rating is the lowest here and worth reading the detail of rather than dismissing.

Syncerize is the one that reaches outside Shopify to WooCommerce, and the one with three ceilings running at once — source stores, product imports and orders — on a 14-review record.

StockUnison, which we make, is the one built around one shared count: every store, and every product carrying the SKU, sells from a single number, and each sale is applied as a change to it rather than copied, so two sales landing at once in different stores both count. It also does one-way from a main store. Every connection starts in preview mode, it never creates or deletes products, and it prices by SKUs kept in sync with every store included — free to 50, then $19 for 2,500. It launched in August 2026 and has no reviews yet; more on it at the end.

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. It is also one of only four apps in this field carrying Shopify’s Built for Shopify badge, and it is the only one that covers both jobs, which is why it turns up at the top of so many App Store searches.

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.

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 its 4.9 across 408 reviews is the highest rating of any app here built for more than one sales channel.

QuickSync sells one integration per app — Etsy, eBay, Amazon — from $19, with each extra integration charged at the plan price again. Its Etsy app alone carries 1,987 reviews, nearly four times the record of its own all-in-one listing, so check which of the vendor’s apps the reviews you are reading belong to.

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, uninstalled from both within two minutes, and says the sync ran anyway — inventory pushed back and forth, collections hidden, theme templates deleted. A QuickSync reviewer was still being billed a month after uninstalling, because Shopify app charges live on the subscription rather than the install; the vendor refunded that one when it was raised.

None of this makes those apps bad; all three are well rated by thousands of merchants between them, and nineteen mentions in 2,603 reviews is a minority report. 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 connected 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 products 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 and one of the eleven above is the right one.

Inside that narrow job it differs on three things this page has been about. It meters SKUs kept in sync, each counted once however many stores carry it, rather than stores, orders or revenue — so connecting another store never moves the bill. Every connection starts in preview mode, which works out 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 920. The free plan runs matching, preview mode and difference checks across your whole catalogue and keeps up to 50 SKUs in sync, so it can be tested against a real store without paying anyone.

Ratings, review counts, complaint shares and prices read from each app's public Shopify App Store listing on 18 September 2026, the ≤3★ share calculated from each listing's own rating breakdown; every app name above links to the listing its figures came from. All of these move — check today's before you decide.