Best Inventory Management Software for Shopify (2026)

Best Inventory Management Software for Shopify in 2026

Shopify's built-in inventory tracking handles the basics, but growing stores need more: demand forecasting, reorder alerts, and purchase order workflows. Here are the best options.

Quick Recommendation

Best overall for Shopify sellers: ReplenishRadar - Purpose-built for Shopify and Amazon with demand forecasting, stockout prevention, and PO workflows.

Top Shopify Inventory Management Tools

1. ReplenishRadar - Best for Forecasting and Stockout Prevention

ReplenishRadar is built specifically for Shopify and Amazon sellers who want to prevent stockouts without living in spreadsheets.

Key strengths:

• Demand forecasting from your Shopify sales history
• Days-to-stockout calculations tied to supplier lead times
• Automated reorder recommendations
• Purchase order workflow with approvals
• Native Amazon FBA integration for multi-channel sellers

Best for: Shopify stores with 50+ SKUs, sellers who order from suppliers with lead times, and anyone selling on both Shopify and Amazon.

Pricing: $29-$299/month based on SKU count. 14-day free trial.

2. Stocky by Shopify - Best Free Option

Stocky is Shopify's own inventory management app, free for Shopify POS Pro users.

Key strengths:

• Free for qualifying Shopify plans
• Native Shopify integration
• Basic demand forecasting
• Purchase orders and transfers

Limitations:

• Requires Shopify POS Pro
• No Amazon integration
• Limited forecasting sophistication

Best for: Shopify-only stores using POS Pro who want free basic inventory management.

3. Inventory Planner - Best for High SKU Count

Inventory Planner handles large catalogs with detailed forecasting controls.

Key strengths:

• Handles thousands of SKUs
• Detailed forecasting parameters
• Supplier lead time management
• Replenishment recommendations

Limitations:

• Steeper learning curve
• Higher price point
• Can feel complex for smaller catalogs

Best for: Established stores with 500+ SKUs needing granular control.

Pricing: Starts around $99/month, scales with SKUs.

4. Sellbrite - Best for Multi-Marketplace Listing

Sellbrite excels at managing listings across many marketplaces with inventory sync.

Key strengths:

• List to Shopify, Amazon, eBay, Etsy, Walmart from one place
• Inventory quantity sync to prevent oversells
• Bulk listing management

Limitations:

• Not a forecasting tool
• Basic inventory tracking only
• Doesn't predict when to reorder

Best for: Sellers expanding to many marketplaces who need listing management.

Pricing: Starting around $29/month.

5. Cin7 - Best for Wholesale + E-commerce

Cin7 is a broader inventory and order management platform.

Key strengths:

• B2B portal for wholesale
• EDI connections
• Multi-location management
• Manufacturing support

Limitations:

• Complex setup
• Higher price point
• May be overkill for D2C-only brands

Best for: Brands with both wholesale and D2C channels.

Pricing: Starts around $349/month.

Comparison Table

Tool	Best For	Forecasting	Amazon	Price From
ReplenishRadar	Shopify + Amazon sellers	Yes	Native	$29/mo
Stocky	Shopify POS Pro users	Basic	No	Free
Inventory Planner	High SKU catalogs	Yes	Yes	~$99/mo
Sellbrite	Multi-marketplace listing	No	Yes	$29/mo
Cin7	Wholesale + retail	Yes	Yes	$349/mo

How to Choose

Choose ReplenishRadar if:

• You sell on Shopify and Amazon (or plan to)
• Preventing stockouts is your main pain
• You want demand forecasting without complexity
• You order from suppliers with lead times

Choose Stocky if:

• You only sell on Shopify
• You use Shopify POS Pro
• Basic forecasting is sufficient
• Budget is the top constraint

Choose Inventory Planner if:

• You have 500+ SKUs
• You need granular forecasting controls
• Your team can manage complexity

Choose Sellbrite if:

• You sell on 4+ marketplaces
• Listing management is the bottleneck
• You don't need forecasting

Choose Cin7 if:

• You have wholesale accounts
• You need EDI or B2B portal
• You are a larger operation

What Features Actually Matter

Must-Have for Most Shopify Stores

• Inventory sync: Real-time connection to Shopify
• Low stock alerts: Know when levels are dropping
• Multi-location support: If you use multiple warehouses

Nice-to-Have for Growing Stores

• Demand forecasting: Predict what you'll sell
• Reorder recommendations: Know when and how much to order
• Purchase orders: Manage supplier relationships

Advanced Features for Larger Operations

• Amazon FBA integration: Unified multi-channel
• Supplier lead time tracking: Automatic reorder timing
• Approval workflows: Team-based purchasing

The Bottom Line

For most Shopify sellers who want to prevent stockouts and make better ordering decisions, ReplenishRadar offers the best balance of forecasting power and ease of use.

If you're Shopify-only with POS Pro, Stocky is free and worth trying first.

If you sell across many marketplaces and need listing management more than forecasting, Sellbrite fits well.

Ready to stop stockouts? Start a free ReplenishRadar trial and connect your Shopify store in minutes.

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Related Reading:

• Shopify Inventory Forecasting Guide
• Inventory Forecasting 101
• E-commerce Inventory Management Guide