Best Shopify Inventory Management Apps for Apparel Brands (2025)

Running a clothing brand on Shopify comes with a unique headache: Variants.

Unlike a store selling electronics (where 1 product = 1 SKU), a fashion store selling a single t-shirt in 5 sizes (XS-XL) and 4 colors has to manage 20 different inventory lines for just that one item.

As you scale, spreadsheets stop working. You need software that understands the complexity of fashion retail—seasonality, returns, and size-specific demand.

Here are the best inventory management apps for Shopify apparel brands in 2025.

1. Fabrikatör – Best for Demand Planning

Fabrikatör is built specifically for brands that struggle with "What do I reorder?".

In fashion, you might sell out of Mediums while having piles of XS left. Fabrikatör analyzes your sales velocity per size and predicts exactly when you'll run out.

• Key Feature: Automated replenishment suggestions based on size-specific sales data.
• Best for: Growing brands that want to avoid stockouts on popular sizes.
• Price: $99 - $199/month.

2. Stock Sync – Best for Dropshipping & Multi-Source

If you don't hold your own stock (e.g., you dropship or work with multiple suppliers), Stock Sync is the industry standard. It automatically syncs inventory levels from your suppliers' feeds (CSV, XML, Google Sheets) to your store.

• Key Feature: Automated inventory updates from supplier feeds to prevent selling out-of-stock items.
• Best for: Brands with external fulfillment or dropshipping models.
• Price: Free plan available; paid starts at $5/month.

3. Trunk – Best for Multi-Channel

Do you sell on Shopify, Etsy, and Amazon? Trunk keeps your inventory identical across all of them in real-time. If you sell a dress on Etsy, Trunk instantly deducts it from your Shopify stock so you don't double-sell.

• Key Feature: Real-time syncing across multiple sales channels.
• Best for: Omnichannel brands selling on marketplaces.
• Price: Starts at $35/month.

4. Inventory Planner – Best for Enterprise Forecasting

For larger brands with deep pockets and complex needs, Inventory Planner offers the most granular data. It's powerful but comes with a steeper learning curve and price tag.

• Key Feature: Deep reporting on "Overstock" vs "Understock" to free up cash flow.
• Best for: Established brands with high SKU counts and budget.
• Price: Starts at $249/month.

The "Hidden" Inventory Strategy: Reduce Returns

While these apps help you manage stock, the best way to simplify inventory is to keep sold items sold.

In 2025, smart apparel brands are pairing their inventory tools with Virtual Try-On apps like Genlook. By helping customers pick the right item visually, you reduce the number of returns flooding back into your warehouse, keeping your inventory count cleaner and your profit margins higher.

Inventory Management Stack Recommendation:

1. Manage: Use Fabrikatör to plan your stock.
2. Visualize: Use Genlook to ensure customers keep what they buy.
3. Sync: Use Stock Sync if you have external suppliers.