The best Shopify inventory management apps in 2026 (and how to choose)

"Inventory management app" covers a lot of ground on the Shopify App Store, from simple low-stock alerts to full demand-planning suites. If you are shopping for one in 2026, it helps to be clear about the job you are actually hiring it to do. The best app is not the one with the longest feature list, it is the one that tells you what to reorder, how much, and in what order, given the cash you have this week.

There is also a deadline forcing the question for a lot of stores: Shopify is retiring Stocky on August 31, 2026, so thousands of merchants are choosing a replacement right now. This guide compares the leading options, what each does well, and how to pick the right one for your stage.

What to look for in a Shopify inventory app

Before the list, here is the short checklist we would use to evaluate any tool on the store:

• Demand forecasting that reflects your real sales history, seasonality, and trend, not a flat average.
• Reorder recommendations with sensible reorder points and safety stock, ideally tuned per SKU rather than one buffer for the whole catalog.
• Cash and ROI awareness, so the tool helps you allocate a limited reorder budget, not just flag everything that is low.
• Multi-location and multi-channel support if you sell across warehouses, retail, or Amazon as well as Shopify.
• Clean migration, especially the ability to import your existing suppliers, lead times, and reorder points so you do not start from zero.
• Read-only safety and fair pricing that scales with your catalog, not surprise per-order fees.

The best Shopify inventory management apps in 2026

1. Stocky (being retired August 31, 2026)

Shopify's own app, bundled with POS Pro, Stocky has been the default for retail-led stores doing purchase orders and stock counts. It is worth mentioning first because so many merchants are leaving it: as of August 31, 2026 it is no longer something to build your planning on. If you are still on it, the priority is exporting your data cleanly, covered in our Stocky shutdown guide.

2. Inventory Planner

One of the longest-standing replenishment and forecasting tools in the ecosystem. Strong, configurable forecasting and deep reporting make it a common pick for larger catalogs and teams that want to tune a lot of levers. The flip side is that smaller stores can find it more tool than they need, and pricing scales with revenue.

3. Cogsy

Cogsy leans into demand planning and purchase-order workflows with a clean, opinionated interface. It is a good fit for growing direct-to-consumer brands that want replenishment suggestions and a tidy PO process without a steep learning curve.

4. Prediko

A newer, Shopify-native entrant focused on fast setup and AI-assisted forecasting plus purchase-order management. Worth a look if you want something modern and quick to onboard, particularly for single-channel Shopify stores.

5. Assisty

Assisty is strongest as a reporting and analytics layer, with replenishment recommendations built on top. If your main pain is "I cannot get the reports I need out of Shopify," it is a capable, affordable option.

6. InventoryIQ

This is our app, so take the framing for what it is, but the design goal is specific. Every other tool here is built around the same question: when will I run out? InventoryIQ is built around a different one: where does my next dollar earn the most? It scores every reorder by ROI under your real cash runway, so your purchase orders come out ranked by return rather than just by stockout date. It imports your Stocky CSVs, connects to Shopify read-only so it never touches your live stock, and does not require POS Pro. Pricing is flat by catalog size, Starter, Growth, and Pro, and every plan starts with a free trial, so you can see the recommendations on your own catalog before paying anything.

Quick comparison

Every app below is capable. The honest differentiator is what it optimizes for. Features and pricing change often, so confirm the current details on each app's Shopify listing before you commit.

Why ROI-based planning is the real upgrade

A stockout date tells you when to reorder. It does not tell you what to fund first when you cannot afford to reorder everything at once, which is the situation most stores are actually in. Two SKUs three weeks from stockout are not equal if one returns three dollars of margin per dollar of inventory and the other returns one.

That is the gap InventoryIQ is built to close. If you want the mechanics, we wrote them up in how to calculate inventory ROI and the buffer math in reorder points vs. safety stock. Together they explain why "lowest stock first" is rarely the most profitable order to buy in.

If you are migrating from Stocky specifically

The replacement decision is more urgent than a normal app switch because of the shutdown. The thing worth protecting is the knowledge you have already built, suppliers, costs, lead times, and reorder points, not just the raw product list. Pick a tool that imports it.

Our step-by-step Stocky-to-InventoryIQ migration guide takes about five minutes, and you can estimate your savings with the calculator before you move a single SKU.

How to choose for your stage

• Under ~100 SKUs, single channel: you want fast setup and clear reorder guidance. Prediko, Cogsy, or InventoryIQ all fit; pick InventoryIQ if cash is tight and you want reorders ranked by return.
• Hundreds of SKUs, watching cashflow closely: the ROI angle matters most here. This is exactly what InventoryIQ is built for.
• Large catalog, dedicated planning team: Inventory Planner's depth and reporting may be worth the heavier setup.
• Reporting is your main pain: Assisty is a focused, affordable fix.

Still weighing it up? Our frequently asked questions cover setup, data security, and how forecasting works, or you can start a free trial and see your own numbers before you decide.