Fashion Inventory Software: 10 Shopify Tools for Smarter Stock
Shopify's native tools break down at 200+ SKUs. These 10 inventory apps solve different problems: StockIQ cleans collections, Fabrikatör forecasts demand, SKULabs handles multi-channel accuracy, Assisty reports on health. Pick 2-3 that match your biggest pain points.
Published April 10, 2026
Managing products on Shopify for a fashion store can be overwhelmingly complicated at times. Multiple sizes, colors, seasonal shifts, and high return rates create endless chaos.
Shopify's built in tools may work at first, but once you hit 200 to 500 SKUs, problems start to appear. You oversell, you miss reorder windows, you waste time on manual spreadsheet work, and more.
The solution to this is specialized inventory software. These tools automate what Shopify can't: forecasting demand, syncing stock across channels, managing variants at scale, and notifying you before problems happen.
Let's have a look at the 10 best fashion inventory software options for Shopify stores.
» Don't miss our guide to managing inventory for your fashion B2B store
Quick Look at Our Top Fashion Inventory Software Options
Best for collection visibility and out-of-stock management: StockIQ
Best for multi-store inventory synchronization: Multi-Store Sync Power
Best for advanced collection merchandising: Bestsellers reSort
Best for data-driven demand forecasting: Fabrikatör
Best for multi-channel warehouse accuracy: SKULabs
Best for omnichannel retail and pop-ups: Shopify POS
Best for inventory health reporting and analysis: Assisty
Best for AI-powered seasonal forecasting: Prediko
Best for manufacturing brands tracking raw materials: Katana
Best budget option for supplier feed automation: Stock Sync
Automatically hides or pushes sold out items to the bottom of collections in real time
Zero storefront performance impact—works through Shopify API without slowing page speed
Syncs products, inventory, pricing, and collections across multiple Shopify stores automatically
Prevents overselling with near real-time updates across all stores simultaneously
Automatically organizes collections by sales performance and stock availability
Customizable schedules (hourly, daily, custom) prevent API conflicts with other apps
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Why Fashion Inventory Is So Hard to Get Right
Building a successful fashion store with efficient inventory management requires attention in a ton of different areas. You need sale visibility, forecasting, shipping accuracy, and reporting to understand what went wrong. That means you're constantly fighting against these aspects:
- Variant sprawl: A single shirt in five colors and six sizes creates 30 SKUs. Multiply that across a full collection and you're managing hundreds or thousands of variants. Shopify caps products at 100 variants for most stores, forcing merchants to split products and track inventory across fragmented listings. That fragmentation leads to stock errors and overselling.
- Seasonal demand swings: Fashion runs on seasons and trends that shift fast. The industry produced 2.5 to 5 billion items of excess stock in 2023, worth $70 to $140 billion. That overproduction comes from bad forecasting.
- High return rates: Online apparel returns average 24% to 25%, nearly double overall retail. If your system doesn't handle returns cleanly, stock counts drift and you end up with ghost inventory that shows “available” but isn't sellable.
- Size distribution: You need to know that Medium Black tees are selling three times faster than XL White ones. Without that granularity, you're guessing. Brands forfeit up to 20% of monthly profits due to poor size distribution.
- Multi-channel conflicts: When you sell across Shopify, retail, and marketplaces, every channel pulls from the same stock. Shopify's native multi-location tracking is basic and doesn't help you allocate stock or rebalance between channels.
Unfortunately, one app can't solve every inventory problem you have. For example, StockIQ keeps your collections organized but doesn't forecast demand, Fabrikatör predicts what to order but doesn't manage warehouses, and SKULabs handles shipping accuracy but doesn't generate purchase orders.
The apps we chose are organized by what they solve. Most stores start small, learn their tools well, then add more as they grow.
» Here's how to use SKUs for better inventory management
The Cost of Getting It Wrong
Poor inventory management is expensive:
- $55,000+ in preventable losses: For a $500K store, poor inventory management costs up to 11% of annual revenue. That's $55K in preventable losses. For a $1M store, that's $110K.
- 69% of customers leave: When a product is out of stock, 69% of shoppers abandon a purchase and shop with a competitor.
- Dead stock ties up cash: Only 60% of fashion inventory sells at full price. The remaining 40% requires discounts. Nike saw markdowns affect 44% of its assortment in 2024.
- Returns compound the problem: With 24% to 25% return rates and 51% of Gen Z "bracketing" (buying multiple sizes to return some), your system needs to process returns quickly. If it can't, stock counts drift and you end up with ghost inventory.
These problems accumulate fast. You oversell because stock counts aren't accurate, you lose time to manual reconciliation, you miss reorder windows, etc.
Long-term, this creates reactive inventory management where you're always fixing problems instead of preventing them.
How We Compared These Tools
To help you find the right tool, we assessed each app across six key dimensions:
- What problem does it solve? We identified the specific bottleneck each tool addresses and which store sizes benefit most from solving it.
- Who should use it? We specified which brands get the most value from this tool based on SKU count, order volume, and/or operational model.
- What does it actually do? We mapped the real workflow: install, configure, monitor. Step-by-step operations, not just feature lists.
- What are the real benefits and limits? Beyond marketing claims, we listed what you actually gain: time saved, accuracy improved, revenue protected, or cash flow optimized, as well as what it doesn't do.
- How does it integrate? We documented what systems it connects with so you can see how it fits into your existing stack.
This approach gives you the information you need to pick tools strategically, not just features that sound good.
The 10 Best Fashion Inventory Tools for Smarter Stock
1
StockIQ ‑ Out‑of‑Stock Manager
The best solution for Shopify stock visibility
Read ReviewIntegrations
Shopify collections and inventory system. Works alongside any other Shopify apps without conflicts (just configure rules to avoid fighting over collection sorting).
Pricing
$750/month (no free version)
Brief Overview
StockIQ is a visibility and merchandising tool built specifically for Shopify merchants. When products go out of stock, they sit in your collections taking up space and frustrating customers. 69% of shoppers will leave and buy from a competitor if an item is unavailable. StockIQ automatically detects out-of-stock products and either hides them or pushes them to the bottom of your collections, keeping your storefront clean and your conversion rate protected.
For fashion stores especially, collection presentation is everything. When a customer browses "New Arrivals" or "Summer Dresses" and half the items show "Sold Out," it kills the shopping experience. With StockIQ, a daily manual task that can take hours when you're managing hundreds of variants becomes an automated process you don't have to worry about.
How It Works
Once installed, StockIQ connects to your Shopify store and monitors inventory continuously. You set your rules in the dashboard, such as "hide products with all variants out of stock" or "push partially out-of-stock products to the bottom." From there, the app handles everything automatically:
- Monitors inventory changes in real time
- When stock hits zero, StockIQ applies your configured rule
- When stock is replenished manually or via another app, StockIQ restores the product's original position
- You receive alerts and reports on what went out of stock and when
Key Features
- Automated collection management: Hides or pushes down out-of-stock products based on rules you configure.
- Real-time inventory monitoring: Detects stockouts as they happen and applies rules immediately.
- Restock alerts: Notifies your team when items go out of stock so you can reorder before customers notice.
- Restocking intelligence: Tracks which products go out of stock most often, giving you data to inform reorder decisions.
- Lightweight performance: Works through the Shopify API without injecting scripts into your storefront, so page load times are unaffected. Processes updates in batches for stores with 5,000+ variants, keeping admin performance smooth.
- Back-in-stock notifications: Captures shopper interest with email alerts when a product is restocked
Pros and Cons
Saves significant time by eliminating daily manual collection checks
Keeps storefronts clean and conversion-friendly, particularly important for fashion stores
Lightweight and performant (no storefront slowdowns even at scale)
Restocking intelligence adds proactive value beyond simple visibility management
Restores product positions automatically when stock is replenished
No demand forecasting, purchase order creation, or multi-location inventory
No bundle inventory or kit tracking
Other apps that reorder collections might have conflicts without defined rules
2
Multi‑Store Sync Power
Keeps product data and inventory synced across multiple stores
Read ReviewIntegrations
Multiple Shopify stores (the core function). Syncs products, inventory, pricing, images, and collections between stores.
Pricing
Free tier available with 25 product limit. Paid plans include $19.99/month (silver), $29.99/month (gold), and $49.99/month (platinum).
Brief Overview
Multi-Store Sync Power solves the multi-store inventory disconnect. If you run separate Shopify stores for different markets (US, EU, wholesale), keeping product data and stock levels consistent across them is a nightmare without automation. You're updating products three times and managing three separate inventories. Without sync, stock counts are never aligned and you risk overselling across stores.
Multi-Store Sync Power eliminates this by treating one store as the "source" and syncing changes to the others. Create a product once, and it appears across all stores. Update a price or inventory level, and it pushes everywhere. This saves hours of duplicate work and prevents the errors that come with manual data entry across multiple stores.
For international fashion brands, this is especially valuable when you sell the same collection across multiple regional Shopify stores with different currencies and languages.
How It Works
- Install Multi-Store Sync Power on every Shopify store you want to keep in sync.
- Pick one store as the source (primary). This is where you create and update products.
- Choose what to sync: products, inventory quantities, pricing, images, collections, or all of them.
- Set the sync direction (one-way from source, or two-way if sales on any store should update inventory on all stores).
Add or update a product on the source store. The change pushes to all connected stores automatically. When a customer buys an item on Store A, the inventory count drops on Store B and Store C in near real time. Check the sync log to monitor for errors or conflicts between stores.
Key Features
- Multi-store syncing: Keep product data and inventory aligned across up to 10+ stores
- Source store configuration: Designate one store as the primary source of data
- Selective sync: Choose to sync products, inventory, pricing, images, collections, or all
- Sync direction control: One-way (source to all) or two-way (all stores update each other)
- Real-time inventory updates: Sale on one store instantly updates stock on all others
- Sync logs: Monitor what synced, when, and any errors that occurred
- Conflict resolution: Built-in handling for data conflicts between stores
- Customizable sync schedule: Control how often syncing occurs
Pros and Cons
Eliminates duplicate product creation and manual updates across stores
Prevents overselling with real-time inventory sync across all stores
Saves hours of data entry and reconciliation every week
Allows regional pricing and currency management while keeping products unified
Scales to support growth without manual overhead
Doesn't forecast demand, generate purchase orders, or provide analytics
Doesn't manage inventory beyond syncing (still need other tools for forecasting/management)
Misconfigured rules can push unwanted products to the wrong store
3
Bestsellers reSort
Helps sales data and inventory organize themselves
Read ReviewIntegrations
Shopify collections and products. Works with any inventory app as a companion tool (StockIQ, SKULabs, etc.).
Pricing
Free version available for up to 49 products and <100 collections. Different paid plans based on needs from $9.99-$39.99/month.
Brief Overview
Bestsellers reSort is a collection management tool that automatically organizes your product displays based on sales performance and inventory levels. Shopify's default sort options (manual, best-selling, price, date) are limited and static. Fashion stores need more sophisticated merchandising.
When a customer browses "Women's Tops" and the first three items are sold out, they bounce. Bestsellers reSort fixes this by automatically promoting in-stock bestsellers to the top and pushing sold-out items to the bottom, keeping your collections fresh and shoppable without anyone manually rearranging products.
For seasonal stores, this is especially valuable. You can use tags to promote new arrivals while pushing end-of-season items down.
How It Works
Bestsellers reSort lets you create advanced sorting rules that automatically organize collections based on sales data, inventory levels, tags, and more. In stock bestsellers rise to the top, and sold out items get filtered to the bottom.
- You can set rules like "push products with zero inventory to the bottom" combined with "sort remaining products by revenue in the last 30 days."
- For seasonal stores, you can use tags to promote new arrivals while pushing end of season items down.
Key Features
- Advanced sorting rules: Sort by revenue, sales volume, inventory level, tags, or custom date ranges
- Scheduled automation: Run sorting every few hours, daily, or on a custom schedule
- Multi-rule configuration: Combine multiple conditions (e.g., "push zero stock to bottom, then sort by revenue")
- Real-time restocking: Products automatically move back up when stock is replenished
- Sorting logs: Track which products moved, when, and why for transparency
- Seasonal promotions: Use tags to promote new arrivals or push old seasons down
- Server-side processing: Works through Shopify API without injecting frontend code
Pros and Cons
Eliminates hours of manual collection management every week
Keeps collections fresh and conversion-friendly automatically
Works with any inventory app without conflicts (just configure rules)
Lightweight performance (no storefront slowdowns)
Transparent logging shows exactly what's happening and why
Does not forecast demand, generate purchase orders, or track inventory
Sorts at product level, not variant level (doesn't detect partially out-of-stock items)
Does not provide analytics beyond sorting (no reporting on what's actually selling)
4
Fabrikatör Inventory Planner
Forecast demand by variant and automate purchase orders
Integrations
ShipHero, Klaviyo, QuickBooks. Generates purchase orders that sync with major accounting and shipping platforms.
Pricing
Free trial available. Paid plans start at $79 per month.
Brief Overview
Fabrikatör is an AI-powered demand forecasting and purchase order automation tool designed for fashion brands managing inventory at scale. Most fashion stores guess on reorder quantities based on gut feel or last year's numbers. This leads to dead stock, overproduction, and missed sales. Fabrikatör solves this by analyzing your historical sales data at the SKU level to forecast future demand automatically, then generating purchase orders with the right quantities.
The real power comes from variant-level insights. You don't just know that "t-shirts are selling well", you know that Medium Black tees are selling three times faster than XL White ones. This data-driven approach directly impacts your bottom line: poor size distribution can cost brands up to 20% of monthly profits. Fabrikatör gets your size ratios right.
One retailer using Fabrikatör discovered their Mediums were selling out three times before they even touched their XLs. Before the tool, they ordered the same quantity across all sizes. After switching to Fabrikatör's recommendations, they adjusted ratios based on actual data and reduced dead stock significantly.
How It Works
Fabrikatör pulls your product catalog and historical sales data from Shopify. The AI analyzes sell-through rates per variant and builds demand forecasts automatically. You see a dashboard showing inventory health at a glance: what's selling well, what's overstocked, and what's running low.
When a variant hits your configured reorder threshold, Fabrikatwör generates a draft purchase order with suggested quantities based on the forecast. You review and adjust if needed, then send the PO to your supplier. As new sales come in, the AI adjusts its forecast automatically, improving accuracy over time.
Key workflow steps:
- Connects to your Shopify store and analyzes sales history
- Generates demand forecasts per variant automatically
- Creates draft purchase orders when stock hits reorder points
- Tracks incoming inventory and marks items as received
- Adjusts forecasts continuously as new sales data comes in
Key Features
- Variant-level demand forecasting: Predicts sales velocity for each size, color, and style combination
- Automated purchase order generation: Creates POs in seconds based on forecast data, eliminating manual spreadsheet work
- Backorder management: Accept backorders and keep generating revenue instead of turning away customers
- Inventory health dashboard: Visual overview of what's selling, overstocked, or running low
- Historical data analysis: Works best with at least 6 months of order history to build accurate forecasts
Pros and Cons
Eliminates guesswork on reorder quantities by using actual sales data
Saves hours of manual PO creation every ordering cycle
Reduces dead stock through accurate size distribution forecasting
Generates data that justifies sourcing decisions to suppliers
Improves cash flow by optimizing order quantities and reducing overstock
Requires at least 6 months of order history to deliver accurate forecasts (not ideal for new brands)
Does not handle barcode scanning, warehouse picking, or physical fulfillment operations
Does not manage multi-channel inventory (Shopify-focused)
Does not automate returns processing (factors returns into forecasts but doesn't handle restocking workflow)
Pricing may feel steep for smaller brands under $100K/year revenue
5
SKULabs
Warehouse management that syncs inventory in real time
Integrations
Shopify, Amazon, eBay, Etsy. ShipStation integration for label printing. USPS, UPS, FedEx, and other carriers supported.
Pricing
Starts at $299 per month. Other paid plans: $499/month (basic), $799/month (growth), and $999/month (pro).
Brief Overview
SKULabs is a full warehouse management system (WMS) designed for e-commerce brands selling across multiple channels. When you're picking, packing, and shipping hundreds of orders per day across multiple warehouses and channels, manual processes lead to errors. Sending the wrong size or color is the fastest way to create a return and damage your reputation.
SKULabs solves this with barcode-based picking, multi-warehouse inventory tracking, and real-time sync across channels. Fashion stores with high order volume need accuracy. SKULabs uses barcode scanning to verify every item before it ships, which reduces picking errors to near zero. For multi-channel sellers (Shopify plus Amazon, eBay, Etsy), SKULabs syncs inventory in real time so you don't oversell.
This is critical during flash sales or seasonal peaks when stock moves fast across channels. SKULabs also handles purchase orders and receiving. When new stock arrives, you scan it in and inventory updates everywhere automatically.
How It Works
- Connect SKULabs to your Shopify store and any other sales channels (Amazon, eBay, Etsy). All your products import automatically.
- Set up your warehouse locations and map SKUs to their storage positions.
- Orders from all connected channels flow into one SKULabs dashboard.
- Warehouse staff pick orders using barcode scanners or mobile devices.
- Each item is scanned before packing to verify it matches the order.
- Print shipping labels from within SKULabs (the app supports USPS, UPS, FedEx, and other carriers).
- When an order ships, inventory updates sync back to Shopify and all other connected channels instantly.
- When new stock arrives from a supplier, scan the items to receive them. Inventory counts update across all channels automatically.
Key Features
- Multi-channel inventory sync: Real-time sync across Shopify, Amazon, eBay, Etsy, and more
- Barcode-based picking: Verify every item before packing to eliminate shipping errors
- Multi-warehouse management: Track inventory across multiple locations and transfer as needed
- Integrated shipping: Print labels from the dashboard with support for major carriers
- Purchase order management: Track incoming inventory and receive items with barcode scanning
- Mobile picking: Warehouse staff can pick orders using mobile devices
- Real-time inventory updates: Instant sync across all channels prevents overselling
Pros and Cons
Reduces picking errors to near zero through barcode verification
Prevents overselling across multiple channels with real-time sync
Consolidates all orders from all channels into one dashboard
Saves time on manual shipping label creation
Provides transparency into warehouse operations
Complex platform with learning curve (not ideal for brands shipping <50 orders/week)
Higher pricing tier ($299+/month) positions it for larger operations
Does not forecast demand or generate purchase orders
Does not handle collection merchandising
Requires setup time to map SKUs, locations, and shipping rules
6
Shopify Point of Sale
Sync online and in-store inventory instantly so you never oversell across channels
Integrations
Native Shopify integration (first-party, built by Shopify). Works with iPad, mobile devices, card readers, and receipt printers via Bluetooth or WiFi.
Pricing
$1 offer for first three months. Paid plans: $25/month (basic), $65/month (grow), $399 p/month (advanced), $2300 p/month (plus).
Brief Overview
Shopify POS is Shopify's native point-of-sale system that solves the online-to-offline inventory disconnect. Fashion brands with physical stores or pop ups need stock levels to sync between their e-commerce site and retail locations. Without POS integration, you risk selling the same item twice and disappointing customers.
Every sale, whether online or in store, updates the same stock count in real time. For fashion brands doing pop up shops, trunk shows, or permanent retail, this eliminates manual reconciliation that used to eat hours every week. You get omnichannel visibility that helps with marketing and inventory allocation decisions.
Shopify POS also gives you customer data across channels. You can see that a customer who browsed online came in store to try on and buy. This omnichannel view helps with marketing and inventory allocation decisions.
How It Works
- Set up Shopify POS on an iPad or mobile device at your retail location.
- Log in with your Shopify account.
- Assign inventory to your retail location in Shopify admin so the POS knows what stock is available in store.
- When a customer makes a purchase in store, the POS processes the sale and deducts stock from that location.
- The online store inventory updates immediately.
If that was the last Medium hoodie, the website shows it as sold out right away.
If a customer wants a size that's not on the floor, staff can check other locations in the system and ship it directly to the customer. Transfer inventory between locations when stock gets low at one spot. Pull end-of-day reports showing sales by location, product, and staff member.
Key Features
- Real-time inventory sync: Online and in-store stock updates instantly
- Multi-location management: Track inventory across warehouse and retail locations
- Ship from store: Staff can fulfill online orders from in-store inventory
- Offline mode: POS works offline for basic transactions if internet drops
- Card reader support: Accept payments with external Bluetooth card readers
- End-of-day reporting: Sales summaries by location, product, and staff
- Customer profiles: Track purchases across online and in-store channels
- Staff permissions (Pro only): Control who can access which functions
Pros and Cons
Native Shopify integration (built by Shopify = tight efficiency)
Near-instant inventory syncs with zero additional API load
Enables ship-from-store workflows that save sales
Offline functionality ensures you can still ring up sales if internet drops
Provides omnichannel customer data for marketing
Free POS Lite plan is very basic (limited features)
Does not forecast demand, generate purchase orders, or provide inventory analytics
Does not handle complex retail promotions as well as dedicated retail POS systems
7
Assisty
Shows you what's selling, what isn't, and what you should do about it
Integrations
Shopify (read-only access to products, sales, and inventory). Exports to CSV for use in Excel, Google Sheets, or other tools.
Pricing
Free plan available. Paid plans are professional: $99/store per month, and enterprise: $239/store per month.
Brief Overview
Assisty is an inventory analytics and reporting tool that fills a gap native Shopify reports can't handle. You can see total sales and basic inventory snapshots, but you can't easily answer "what is my dead stock ratio?" or "which variants have the worst sell-through rate?" Assisty solves this by providing customizable inventory reports that show what's working and what's not at the variant level.
For fashion stores, Assisty's biggest value is visibility into what's actually selling by size, color, and collection. This tells you whether your size curve (the ratio of sizes you order) matches what customers actually buy. If you're ordering equal quantities of XS through XXL but customers only buy M and L, your dead stock problem becomes obvious.
Assisty also tracks inventory aging, which is critical for fashion. You can quickly see which products have been sitting for 60, 90, or 120+ days and decide whether to discount, bundle, or liquidate them before they become dead stock. The app provides reorder alerts and basic demand forecasting, though it's not as advanced as Fabrikatör or Prediko on the forecasting side. Where it shines is the flexibility of its reporting.
How It Works
- Install Assisty and it pulls your product catalog, sales history, and inventory data from Shopify.
- Use pre-built report templates to see your inventory health at a glance.
- Templates cover stock levels, sell-through rates, dead stock, and more.
- Create custom reports by filtering on collection, vendor, product type, variant, or time period.
For example, build a report showing sell-through by size for your denim collection. Set up automated alerts for low stock, out of stock, or slow-moving products. Assisty sends notifications so you can act before problems grow.
Review your inventory aging report weekly. Products sitting longer than 90 days get flagged so you can decide whether to discount or bundle them. Export any report to CSV and share it with your buying team or supplier for reorder planning.
Key Features
- Pre-built report templates: Stock levels, sell-through rates, dead stock, inventory aging
- Custom report builder: Filter by collection, vendor, product type, variant, time period, and more
- Inventory aging tracking: Identify products sitting too long before they become dead stock
- Automated alerts: Low stock, out of stock, and slow-moving product notifications
- Sell-through rate analysis: See which products and variants are moving fastest
- Dead stock identification: Flag products for discounting or bundling
- CSV export: Share reports with buying team or suppliers
- Size curve analysis: Understand if your size ratios match actual customer demand
Pros and Cons
Provides visibility into inventory problems that Shopify reports can't show
Customizable reports give you exactly the data you need
Identifies dead stock before it becomes a major problem
Automated alerts keep you proactive instead of reactive
Free plan available with core features
Accessible pricing makes it available for stores of all sizes
Strong on analytics but weaker on action (reports what's wrong, not how to fix it)
Does not automate response to alerts (you still manually create POs)
Does not handle multi-channel inventory (Shopify-only visibility)
Does not forecast demand (tells you what happened, not what will happen)
Requires manual interpretation of data to make decisions
8
Prediko
AI that learns your patterns so you stop guessing on what to order next
Integrations
Shopify (native integration). Generates purchase orders that can be sent to suppliers via email or integrated systems.
Pricing
Free 14-day trial, paid plan is $49/month.
Brief Overview
Prediko is an AI-powered demand forecasting tool that removes the guesswork from inventory planning. For fashion brands dealing with seasonal swings and trend-driven buying, "how much should I order?" is a guessing game that costs money. Prediko solves this by analyzing your Shopify sales data at the SKU level to forecast future demand automatically.
Prediko's AI forecasting is genuinely useful for fashion because it adjusts for seasonality and trends automatically. If your summer dresses spike every May, Prediko learns that pattern and starts flagging reorder needs in advance. You can add planned promotions or events to the forecast so it doesn't get thrown off by spikes it didn't see coming.
The purchase order workflow is smooth. You can create POs directly in the app, track them through receiving, and see how your actual sales compare to the forecast. This closed loop lets you improve your ordering accuracy over time. The app has over 100 filters for inventory reports, which gives you deep slicing capability (by collection, vendor, product type, variant, and more).
How It Works
- Install Prediko and connect to your Shopify store.
- The app imports your sales history and product catalog.
- Within a few hours, Prediko generates AI-powered demand forecasts for every SKU. You don't need to configure anything for the first forecast to appear.
Open the stock health dashboard. Products are color-coded: green means healthy stock, yellow means running low, red means critical or already out of stock.
Click on any product to see its projected stockout date and the recommended reorder quantity based on the forecast.
Create a purchase order directly from the recommendation. Fill in supplier details and send the PO from within the app. Track the PO from draft through to received. When stock arrives, mark it as received and Shopify inventory updates.
As new sales come in, the AI adjusts its forecast automatically.
Key Features
- AI demand forecasting: Analyzes sales data to predict future demand automatically
- Seasonal pattern learning: Detects recurring seasonal trends and adjusts forecasts accordingly
- Stock health dashboard: Color-coded visualization (green/yellow/red) of inventory status
- Stockout prediction: Shows projected stockout dates for each product
- Automated reorder recommendations: Suggests quantities based on forecast
- Purchase order generation: Create and send POs directly from forecasts
- Event planning: Add planned promotions or launches so AI accounts for expected spikes
- Forecast accuracy tracking: See how actual sales compare to predictions over time
- 100+ report filters: Slice data by collection, vendor, product type, variant, and more
Pros and Cons
Removes guesswork from reorder decisions with data-driven forecasting
AI learns and improves over time as it collects more sales data
Adjusts automatically for seasonal patterns without manual updates
Tight Shopify integration (purpose-built for the platform)
Closed-loop forecasting improves accuracy over multiple seasons
Handles trend velocity shifts automatically
Requires at least 6 months of sales history for accurate forecasts (not ideal for new brands)
Does not handle warehouse operations (barcode scanning, picking, packing)
Does not manage multi-channel inventory sync (Shopify-only)
AI forecasting struggles with brand new products with no sales history
New stores won't get reliable forecasts until sufficient data accumulates
9
Katana
Track raw materials to finished goods in one system so you never overbuild
Integrations
Shopify (finished goods inventory sync). Connects with production planning systems and raw material suppliers.
Pricing
Free plan available with up to 30 SKUs. Paid plan $399 (standard) and $899 (professional).
Brief Overview
Katana is a production and inventory management platform built specifically for brands that manufacture their own products. It solves a unique problem: tracking both raw materials and finished goods in one system.
If you buy fabric, thread, and labels separately, then assemble garments, you need visibility into whether you have enough raw materials to fulfill a production run before you commit to it.
Katana works by defining your bill of materials (BOM). For example: 1 meter of cotton fabric + 1 zipper + 2 labels = 1 finished jacket. As you produce, Katana deducts raw material inventory automatically and updates finished goods. When a jacket sells on Shopify, Katana updates the count in both systems. This removes the disconnect between production and sales that causes overselling and waste.
For fashion brands that manufacture, this level of integration is transformational. You can see production costs per item, which helps with pricing decisions and margin analysis. You always know if you have enough fabric to fill a production run before you commit to it.
How It Works
You set up products in Katana with BOMs listing all raw materials and quantities needed.
When orders come in from Shopify, Katana creates manufacturing orders automatically. The system checks raw material availability and flags shortages before production starts.
As production completes, finished goods inventory updates in both Katana and Shopify simultaneously.
Purchase orders for raw materials are created automatically when stock runs low. Sales data from Shopify flows back into Katana for production planning.
Workflow:
- Define products with bill of materials (raw materials + quantities)
- Receive orders from Shopify
- Katana creates manufacturing orders and checks material availability
- Production team completes work
- Finished goods inventory updates automatically in both systems
- Raw material purchase orders generated when stock runs low
Key Features
- Bill of materials (BOM) management: Define raw materials needed for each finished product
- Production order automation: Manufacturing orders created automatically from Shopify sales
- Raw material tracking: Monitor stock of fabrics, components, and other inputs
- Cost per item calculation: Track production costs for pricing and margin analysis
- Real-time Shopify sync: Finished goods inventory updates automatically when items sell
- Material shortage alerts: Flagged before production starts, preventing wasted work
Pros and Cons
Eliminates the disconnect between production and sales that causes overselling
Provides clear visibility into production costs and margins
Prevents wasted production when materials are unavailable
Reduces need for manual inventory reconciliation between production and Shopify
Scales with your production volume without additional overhead
Designed only for brands that manufacture (overkill for resellers or dropshippers)
Requires learning a new system alongside Shopify (operational overhead)
Higher pricing tier makes it better suited for established brands
Does not handle storefront merchandising
Setup and initial data migration can be time-intensive for complex BOMs
10
syncX: Stock Sync
Automatically import supplier inventory feeds so your stock counts match reality
Integrations
CSV files, Google Sheets, FTP, XML, and supplier APIs. Supports multiple supplier feeds simultaneously.
Pricing
Free (up to 2,000 products). Starter $7/month (up to 2500 products), Expert $10/month (50,000 products).
Brief Overview
Stock Sync solves the supplier feed synchronization problem. If your fashion brand sources products from multiple suppliers who provide inventory feeds (CSV, XML, Google Sheets, FTP), keeping Shopify inventory in sync is impossible to do manually. Stock levels change constantly and supplier data moves fast.
Downloading spreadsheets, comparing numbers, and manually updating Shopify is slow, error-prone, and impossible to scale.
Stock Sync automates the entire flow. Your supplier uploads their feed, and Stock Sync maps it to your Shopify products and updates quantities automatically. You can set update schedules (hourly, daily), define rules for price adjustments, and handle multiple suppliers in one app.
For fashion stores carrying products from several vendors, this is a lifesaver. It prevents overselling on items your supplier has run out of and saves hours of admin work every week.
The free plan supports up to 2,000 SKUs, making it accessible even for small stores.
How It Works
- Install Stock Sync and set up your feed source. This can be a CSV file URL, a Google Sheets link, an FTP location, or an API endpoint from your supplier.
- Map the fields in your supplier's feed to Shopify product fields.
- At minimum, you need SKU and quantity. You can also map price, title, weight, and other attributes.
- Set a sync schedule. Choose hourly, every 6 hours, daily, or a custom interval depending on how often your supplier updates their feed.
- Stock Sync reads the feed on schedule and matches products by SKU. Quantities update automatically in Shopify.
- If you work with multiple suppliers, set up a separate feed for each one. Stock Sync handles them independently.
Check the sync log after each run. The log shows which products were updated, which SKUs didn't match, and any errors that need attention.
Key Features
- Multi-feed support: Connect feeds from multiple suppliers simultaneously
- Flexible feed formats: CSV, Google Sheets, FTP, XML, APIs all supported
- Field mapping: Map supplier fields to Shopify product attributes
- Custom sync schedules: Hourly, every 6 hours, daily, or custom intervals
- Price sync: Update pricing from supplier feeds automatically
- Error logging: Track which products synced, which had issues
- SKU matching: Automatically match supplier SKUs to Shopify products
- Bulk operations: Process thousands of SKUs per sync window
Pros and Cons
Eliminates manual spreadsheet updates and data entry
Supports multiple suppliers in one app without manual coordination
Prevents overselling on dropshipped items with real-time sync
Affordable pricing makes it accessible (free plan for 2,000 SKUs)
Works with any supplier feed format (CSV, Google Sheets, FTP, XML, APIs)
Scales from hundreds to tens of thousands of SKUs
Does not forecast demand, generate purchase orders, or provide analytics
Data quality depends on supplier feed accuracy
Requires careful mapping and validation to avoid importing errors
Messy supplier data can propagate errors into your Shopify store if not validated
Pick the Right Tool for Your Stage
Shopify's built in inventory tools get you started, but once you scale you need to start looking at different tools to further support your growth.
The right inventory software fixes this, it automates forecasting, keeps stock accurate across channels, manages variants at scale, and alerts you before problems happen.
You don't need all 10 apps. Pick two or three that match your biggest pain points. For example, a smaller brand might start with Fabrikatör for forecasting and StockIQ for collection management, whereas a larger multi-channel operation might add SKULabs for warehouse accuracy.
Even a small stack of two or three apps ($200-400 per month) will pay for itself within the first month. Start with data cleanup, standardize your SKUs, make sure every variant has a barcode, and document your size charts. Then pick your first tool and learn it well before adding more.
FAQs
When should I move beyond Shopify's built in tools?
Once you cross 200 to 500 SKUs, sell across multiple locations, or need demand forecasting. Shopify tracks quantities and sets policies per location, but it doesn't forecast, create purchase orders, or alert you to stockouts.
What data should I clean up before installing inventory software?
Standardize your SKU format (brand-style-color-size), barcode every variant, and document your size charts. As one expert puts it: "If your SKU naming is inconsistent or your supplier feeds are messy, no app will save you."
How much will implementing inventory apps cost per month?
A typical mid-size store spends $200 to $400 per month across two or three apps. It pays for itself in the first month through preventing dead stock and stockouts.
At what point should I move to an ERP system?
When you hit 5,000+ SKUs, 3+ locations, manage manufacturing, and process 1,000+ orders per week. ERPs cost $25K to $100K+ but eliminate app silos. Move to ERP if managing app gaps takes more time than running your business.
Why do high return rates matter for inventory management?
Online apparel returns average 24% to 25%. If your system can't process returns quickly, stock counts drift and you end up with ghost inventory that shows available but isn't sellable.
What inventory challenges remain unsolved by current tools?
Size curve optimization across regions and seasons. Return prediction (most tools count returns after the fact instead of forecasting them). Cross-channel allocation decisions are still mostly manual.
