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Forecasting for Shopify

Top 10 Shopify Demand Forecasting Apps (2026)

Demand forecasting is what turns inventory from a guessing game into a P&L lever. The right app depends on SKU count, sales seasonality, lead-time complexity, and whether your buying team is one person with a spreadsheet or a full planning function. Spreadsheet-style brands often outgrow Excel between $2M and $5M.

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Expert-reviewed by ShopOperationsExperts editorial teamLast verified: Part of: Shopify inventory management

Decision variables to weigh

  • SKU count (under 200 vs. 200–2K vs. 2K+)
  • Seasonality complexity (steady-state vs. peak-driven vs. fashion-cycle)
  • Lead-time variability (single-supplier domestic vs. multi-supplier global)
  • Sales velocity at the SKU level (long-tail vs. concentrated)
  • Whether the output is PO recommendations or open-to-buy planning
  1. Top pick
    1

    Inventory Planner

    by Inventory Planner (a Sage company)

    The most-deployed demand-planning tool in the Shopify mid-market. Forecast generation, PO recommendations, supplier lead-time modeling, open-to-buy planning, and replenishment alerts. Sage-owned (acquired alongside Brightpearl) with native Shopify, NetSuite, and Brightpearl integrations.

    Best for: Mid-market DTC brands ($3M–$30M) needing demand-planning intelligence on top of existing operational inventory tooling.

    Verified facts
    • Sage-owned (acquired alongside Brightpearl)
    • Native Shopify, NetSuite, and Brightpearl integrations
    Visit Inventory Planner (a Sage company) →Get an implementation quote →
  2. Runner-up
    2

    Cogsy

    by Cogsy

    DTC-focused demand-planning platform with a sharper UX than Inventory Planner and a stronger Shopify-velocity model. Built for $2M–$25M brands that have outgrown spreadsheets. PO automation, cash-flow modeling, and out-of-stock alerts.

    Best for: $2M–$25M Shopify DTC brands graduating from spreadsheet planning who want a Shopify-velocity-aware forecasting tool.

    Verified facts
    • DTC-focused with Shopify-velocity-aware forecasting
    • PO automation and cash-flow modeling
    Visit Cogsy →Get an implementation quote →
  3. Notable
    3

    NETSTOCK

    by NETSTOCK

    Long-established demand-planning and replenishment-optimization platform with deep ERP integrations (NetSuite, Acumatica, Microsoft Dynamics 365 BC, SAP B1, Cin7) plus Shopify. Strongest fit for ERP-anchored brands that need ERP-side planning rather than DTC-velocity planning.

    Best for: ERP-anchored Shopify Plus brands ($10M+) needing forecasting integrated with NetSuite, Acumatica, BC, or SAP B1.

    Verified facts
    • Deep ERP integrations (NetSuite, Acumatica, BC, SAP B1)
    • Established 1996
    Visit NETSTOCK →Get an implementation quote →
  4. 4

    Lokad

    by Lokad

    Quantitative-supply-chain platform — uses probabilistic forecasting and stochastic optimization rather than traditional point forecasts. Sophisticated for brands with high SKU counts, complex lead times, and global supply chains. Higher technical bar than Inventory Planner or Cogsy.

    Best for: Sophisticated planning teams ($25M+) wanting probabilistic forecasting and stochastic optimization rather than simpler heuristic models.

    Verified facts
    • Probabilistic forecasting platform
    • Used in large supply-chain operations across retail and DTC
    Visit Lokad →Get an implementation quote →
  5. 5

    Forecastly

    by Forecastly

    Demand-planning tool with focus on Amazon and Shopify multi-channel sellers. Forecast generation, replenishment alerts, lead-time tracking, and inventory-out date predictions. Strongest fit for brands selling Shopify + Amazon at the SMB / mid-market scale.

    Best for: Multi-channel SMB / mid-market brands ($1M–$10M) selling on Shopify + Amazon needing combined-channel forecasting.

    Verified facts
    • Multi-channel (Shopify + Amazon)
    • Replenishment and out-of-stock alerts
    Visit Forecastly →Get an implementation quote →
  6. 6

    Brightpearl Demand Planner

    by Brightpearl (a Sage company)

    Native Brightpearl forecasting module for brands using Brightpearl as the retail-OS — uses sales history from Shopify and any other Brightpearl-connected channel for replenishment recommendations. The on-platform alternative to Inventory Planner for Brightpearl customers.

    Best for: Brightpearl customers ($5M–$30M) wanting forecasting consolidated on the same platform rather than a third-party planning tool.

    Verified facts
    • Native Brightpearl module
    • Uses Shopify and multi-channel sales history
    Visit Brightpearl (a Sage company) →Get an implementation quote →
  7. 7

    NetSuite Demand Planning

    by Oracle NetSuite

    NetSuite-native demand-planning module — forecast generation, multi-location demand, and supply planning integrated with NetSuite Inventory. Strongest fit when NetSuite is already in place and the planning team prefers consolidating on the ERP.

    Best for: NetSuite-anchored Shopify Plus brands ($25M+) consolidating planning into NetSuite rather than running a separate tool.

    Verified facts
    • NetSuite-native demand-planning module
    • Multi-location supply and demand planning
    Visit Oracle NetSuite →Get an implementation quote →
  8. 8

    Streamline

    by GMDH Streamline

    AI-driven demand-forecasting and inventory-optimization platform with ERP-agnostic positioning — works with NetSuite, SAP, Microsoft Dynamics, QuickBooks, Shopify, and others. Strongest fit for brands with complex multi-source data needs and a planning team willing to invest in setup.

    Best for: Mid-market and enterprise brands needing AI-driven forecasting with multi-source data inputs across ERP, ecommerce, and POS.

    Verified facts
    • AI / machine-learning forecasting
    • ERP-agnostic (NetSuite, SAP, MS Dynamics, QuickBooks, Shopify)
    Visit GMDH Streamline →Get an implementation quote →
  9. 9

    Prediko

    by Prediko

    AI-native demand-planning platform purpose-built for DTC Shopify brands — uses Shopify, Klaviyo, Meta Ads, and Google Analytics data combined for sales velocity prediction. Strong newer entrant with sharp DTC focus.

    Best for: DTC-native Shopify brands ($1M–$20M) wanting AI-driven forecasting that combines sales, marketing, and ad-spend signals.

    Verified facts
    • AI-native demand planning
    • Combines Shopify, Klaviyo, Meta Ads data
    Visit Prediko →Get an implementation quote →
  10. 10

    StockTrim

    by StockTrim

    Lightweight forecasting and PO-generation tool with native Shopify integration plus accounting integrations (Xero, QuickBooks, Cin7, Unleashed). Strongest fit for SMB brands graduating from spreadsheets to their first planning tool without committing to Inventory Planner or Cogsy pricing.

    Best for: SMB Shopify brands (<$3M) graduating from spreadsheets needing a low-cost first forecasting tool.

    Verified facts
    • Native Shopify, Xero, QuickBooks, Cin7 integrations
    • SMB-priced
    Visit StockTrim →Get an implementation quote →

How to choose

The 3 decisions that determine fit.

If you’re sub-$3M and graduating from spreadsheets

StockTrim or Forecastly. You don’t need Inventory Planner-grade tooling yet — you need anything that beats Excel. Both are SMB-priced and quick to implement. Step up to Cogsy or Inventory Planner when you have a buying function and seasonal complexity.

If you’re $3M–$25M DTC

Cogsy or Inventory Planner. Cogsy has the sharper DTC UX and better Shopify-velocity model; Inventory Planner has the longer track record and the broader Sage / Brightpearl / NetSuite integrations. Both are the right tier for this scale.

If you’re ERP-anchored and complex

NETSTOCK, Lokad, or NetSuite Demand Planning. NETSTOCK is the ERP-bridge specialist; Lokad is the sophisticated quantitative option; NetSuite Demand Planning if you want the ERP-native path. Pick by which ERP and which level of planning sophistication you actually need.

Common questions

Questions operators ask before they choose

Can Shopify forecast demand natively?
Stocky provides demand-based PO suggestions and out-of-stock alerts using Shopify sales history, which is enough for many sub-$3M brands. Beyond that — seasonality modeling, multi-location planning, supplier lead-time modeling, open-to-buy — a dedicated forecasting app is the default.
How much do demand-forecasting apps cost in 2026?
StockTrim: $99–$299/mo. Forecastly: $50–$300/mo. Cogsy: $249–$1,499+/mo. Inventory Planner: $200–$2K+/mo by SKU count. NETSTOCK: $200–$800/mo. Prediko: $99–$500/mo. Lokad: $2.5K–$10K+/mo enterprise. NetSuite Demand Planning: included with NetSuite (~$25K+/year).
How accurate are these forecasts?
Typical mid-market DTC brands see 70–85% forecast accuracy at the SKU level with mature tooling, which is meaningfully better than spreadsheet-driven planning. Accuracy depends more on data quality (clean sales history, captured lead times) than on which tool you pick.
Do these tools generate POs automatically?
Most generate PO recommendations that a human reviews and approves before sending. A few (Cogsy, Inventory Planner, Stocky) can send POs directly to suppliers in some configurations. Fully automated PO generation without human review is rare and usually inadvisable for non-trivial spend.
When should we hire a buyer / planner vs. relying on the tool alone?
Tools handle the math; people handle the judgment calls (new product introductions, supplier risk, promotional planning, fashion cycles). Most $5M+ brands have a dedicated buyer or planner alongside the tool. Sub-$5M brands often run the founder or ops lead as a part-time planner.

Related lists

Other shortlists in the Shopify inventory management pillar.

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