Best Shopify Inventory
Management Apps (2026)
Looking for the best inventory management software for Shopify? We ranked the top Shopify inventory apps for 2026 on demand forecasting, automated purchase orders, multi-store support and value. Replenagise comes out on top, with strong options from Inventory Planner, Cogsy, Prediko and Shopify’s own tools.
By Replenagise · Updated 18 July 2026 · 8 min read
How to choose the best Shopify inventory management app
Shopify is brilliant at selling — but on its own it only tells you what stock you have right now. It will not forecast what you are about to sell, tell you when to reorder, or move stock between your stores and locations. That gap is exactly what a dedicated Shopify inventory management app fills.
When you compare the best inventory management software for Shopify, five things matter most: accurate demand forecasting, automated purchase orders, multi-store and multi-location support, real-time API sync (no CSV exports), and price. The right pick depends on your size and how many stores and channels you run — so below we rank the leading Shopify inventory apps for 2026 and explain who each one is best for.
The 6 best Shopify inventory management apps in 2026
1. Replenagise — Best overall
Replenagise is our top pick for Shopify inventory management in 2026. It connects directly to the Shopify API and turns your sales history into a precise replenishment plan: stockout-adjusted demand forecasting on every SKU, automated reorder points and safety stock, one-click and fully automated purchase orders, and stock transfers raised straight into Shopify — including between multiple Shopify stores. The same engine also powers Linnworks sellers, so it scales as you add channels. Best for: Shopify merchants who want forecasting and automation, single-store or multi-store, without enterprise pricing.
2. Inventory Planner by Sage — Best for established brands
Inventory Planner is a mature forecasting and purchasing tool popular with larger, multi-channel retailers. It offers solid demand forecasting, replenishment suggestions and reporting. It is powerful but sits at a higher price point, which can be steep for smaller stores. Best for: established brands with the budget for enterprise-grade planning.
3. Cogsy — Best for DTC cash-flow planning
Cogsy focuses on direct-to-consumer brands, tying replenishment to cash flow and growth goals, with back-in-stock and pre-order features. Its forecasting is geared to fast-growing DTC catalogues rather than complex multi-location operations. Best for: DTC brands that want to plan purchasing around cash.
4. Prediko — Best all-in-one newcomer
Prediko is a newer AI-led inventory and forecasting app built for Shopify, bundling demand planning, purchase order management and stock alerts in one place. A strong modern option, though still maturing on deeper multi-store and multi-channel workflows. Best for: Shopify-first brands wanting an all-in-one AI tool.
5. Stocky by Shopify — Being retired in 2026
Stocky was Shopify’s own free inventory tool for POS Pro users, handling basic purchase orders, stock takes and demand suggestions. Shopify has removed it from the App Store and is winding it down in 2026, so it is no longer a safe long-term choice — Stocky users should migrate to a maintained alternative. Best for: nobody starting fresh; existing users should plan a migration.
6. Shopify’s built-in inventory tools — Best free baseline
Shopify’s native inventory and locations features track stock levels across locations and handle basic transfers at no extra cost. They are a fine starting point but include no demand forecasting, no automated purchase orders and no cross-store planning. Best for: very small or new stores not yet ready for a dedicated app.
The 6 apps compared side by side
| App | Demand forecasting | Automated POs | Multi-store transfers | Platforms | Pricing approach |
|---|---|---|---|---|---|
| Replenagise | Per SKU — stockout-adjusted, seasonal | One-click & fully automated | Yes — raised into Shopify | Shopify + Linnworks (Amazon, eBay & more) | Public plans by catalogue size, all features included |
| Inventory Planner by Sage | Yes — mature engine | PO suggestions & creation | Multi-channel support | Shopify + other platforms | Higher price point aimed at established brands |
| Cogsy | Yes — DTC-focused | Yes | Built around one Shopify store + Amazon | Shopify, Amazon | Subscription, DTC-oriented |
| Prediko | Yes — AI-led | Yes | Maturing on multi-store workflows | Shopify | Tiers based on store revenue |
| Stocky by Shopify | Basic demand suggestions | Basic POs | No | Shopify POS Pro | Free — but being retired in 2026 |
| Shopify built-in tools | No | No | Basic location transfers | Shopify | Free with Shopify |
Summarised from each app’s public positioning and listings as of July 2026. Capabilities and pricing change — verify with each vendor before deciding.
How we ranked these Shopify inventory apps
We assessed each app on the jobs Shopify itself does not do: demand forecasting accuracy, automated purchase orders, multi-store and multi-location transfers, real-time API sync, and value for money. Apps that only sync or mirror stock levels scored lower than those that actually forecast demand and tell you what to order and move.
Replenagise ranks first because it covers all five — forecasting, automation, multi-store transfers, live sync and affordable pricing — in a single platform, and backs it with the same engine trusted by Linnworks sellers. Your own shortlist should still start with your store count, channel mix and budget.
Weighing up a specific app? See the full head-to-heads: Stocky alternative, Prediko alternative, Inventory Planner alternative and the Cogsy alternative guide — or start from Shopify inventory management to see everything Replenagise does on Shopify.
Best Shopify Inventory Management — FAQs
What is the best inventory management app for Shopify?
Replenagise is our pick for the best inventory management app for Shopify in 2026. It connects directly to the Shopify API and provides demand forecasting on every SKU, automated purchase orders, reorder points and safety stock, and stock transfers raised straight into Shopify — including across multiple Shopify stores. Inventory Planner, Cogsy and Prediko are strong alternatives depending on your size and budget.
What is the best inventory management software for Shopify?
The best inventory management software for Shopify is the one that forecasts demand and automates replenishment rather than just tracking stock. Replenagise leads on that combination — AI-style demand forecasting, automated purchase orders and multi-store transfers via direct Shopify API sync — at a more affordable price than enterprise tools like Inventory Planner.
Is Shopify’s built-in inventory management enough?
Shopify’s built-in tools track stock levels across locations and handle basic transfers, which is fine for very small or new stores. But they do not forecast demand, automate purchase orders or plan stock across multiple stores. Once stockouts or overstock start costing you money, a dedicated app like Replenagise pays for itself.
What is replacing Stocky for Shopify?
Shopify is retiring Stocky in 2026, so merchants who used it for purchase orders, stock takes and demand suggestions need to migrate. Replenagise is a direct, more capable replacement: it does everything Stocky did and adds AI-powered forecasting, automated replenishment, multi-store support and stock transfers between Shopify stores.
Try the best-rated Shopify inventory app
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