Inventory forecasting means estimating how much of each product you will sell, so you know when to reorder and how much to buy. This guide covers what to look for in a forecasting app, a handful of options on the Shopify App Store, and when Shopify's own reports are enough. We make StockSense, which is one of the apps below.
What to look for
A forecasting app is worth paying for when it turns sales history into a clear reorder decision. Check these points on each listing before you install.
- Forecast inputs: Whether it reads Shopify orders alone or also other channels, bundles and raw materials.
- Reorder output: A reorder point, quantity and date per SKU, not just a sales chart.
- Lead time and safety stock: Whether supplier lead time changes the recommendation. See how to calculate safety stock.
- Purchase orders: Whether it drafts purchase orders, and whether it also receives stock and handles transfers.
- Pricing basis: Some apps charge by SKU count, some by store revenue, some by Shopify plan.
Apps to consider
Prices below are from each app's listing as of October 2026. Confirm current pricing on the listing before you decide.
| App | What it does and who it suits |
|---|---|
| Shopify inventory reports | Built-in reports such as days of inventory remaining and ABC analysis. Suits small catalogs. |
| StockSense | Per-SKU forecasts, reorder points and draft purchase orders. Suits stores selling through Shopify. |
| Prediko Inventory Management | Forecasting, purchase orders, transfers and raw materials. Suits growing multi-location brands. |
| Inventory Management ‑ Assisty | Inventory tracking and reports, with forecasting on paid plans. Suits stores that want a free starting point. |
| Inventory Planner by Sage | Forecasting, replenishment and multi-location stock. Suits larger, multi-channel operations. |
Shopify inventory reports are part of Shopify's analytics. Shopify's help center lists reports including inventory sold daily by product, days of inventory remaining, products by sell-through rate and ABC product analysis. They describe what has happened and estimate how long stock will last. They do not recommend a reorder quantity or draft a purchase order.
StockSense forecasts per-SKU demand from your order history using velocity, trend, seasonality and lead-time-aware safety stock, then recommends a reorder point, quantity and date and drafts purchase orders grouped by supplier. Plans are Starter at $19 a month, Growth at $49 and Pro at $149, tiered by SKU count. The listing does not mention a free trial. Limitation: it is a newer app with few reviews, and it forecasts from Shopify order history, with no other sales channels feeding the forecast.
Prediko Inventory Management covers demand forecasting, purchase order management, multi-location transfers, raw materials and bills of materials. Plans are tiered by store revenue: Starter at $49 a month, Scale-up at $119 and Growth at $199, each with a 14-day free trial, plus a quoted Enterprise tier. Limitation: the price rises as your revenue grows, whatever your SKU count.
Inventory Management ‑ Assisty has a free Basic plan with inventory tracking, low-stock reports and sales analysis. Demand forecasting starts on the Professional plan at $19 a month, and purchase orders on the Replenishment plan at $39, with both prices varying by Shopify plan and a 14-day free trial on paid plans. Limitation: the free plan does not include forecasting.
Inventory Planner by Sage forecasts demand, automates replenishment and manages multi-location stock, with integrations such as Amazon and QuickBooks. It is free to install and pricing is by quote. Limitation: no prices are published on the listing, so you need to contact the developer to compare cost.
How to choose
Match the tool to how complicated your buying is.
- A few dozen SKUs, one supplier: Shopify's reports plus a manual reorder point may be enough.
- You sell through Shopify and want a reorder list with draft purchase orders: StockSense fits.
- You make products from components or move stock between locations: Look at Prediko or Assisty's Replenishment plan.
- You sell on Amazon or other channels as well: Inventory Planner by Sage or Prediko list those integrations. StockSense does not.
- You want to try forecasting ideas at no cost: Start with Shopify's reports or forecast without a spreadsheet.
Doing this at scale
StockSense forecasts per-SKU demand from your order history using velocity, trend, seasonality and lead-time-aware safety stock. It recommends a reorder point, quantity and date, ranks SKUs by revenue at risk, and drafts purchase orders grouped by supplier. See StockSense.