Quick Picks
- Best overall for reorder automation with full transparency: Supremo
- Best for multi-channel sync (Shopify + Amazon/Etsy/eBay): Sumtracker
- Best for AI-driven demand forecasting at scale: Prediko
- Best for purchase order automation with backorder management: Fabrikatör
- Best free tier for basic forecasting: Assisty
- Best for merchants who manufacture their own products: Katana
Comparison Table
| App | Starting price | Reorder logic | Purchase orders | Multi-location | Multi-channel | Free tier |
|---|---|---|---|---|---|---|
| Supremo | Free (paid from $19/mo) | Transparent formula: velocity × lead time + safety stock | Full workflow: create, send, receive, close | Yes | Shopify only | Yes, full features, 100 products |
| Sumtracker | $49/mo | Restock recommendations from lead time + velocity | Yes | Yes | Yes: Amazon, Etsy, eBay, Walmart | No |
| Prediko | $49/mo (scales with GMV) | AI forecasting, trained on 25M+ SKUs | Automated PO generation | Yes | Limited | No |
| Fabrikatör | $99/mo (scales with revenue) | AI demand forecasting | Yes, with backorder management | Yes | Limited | No |
| Assisty | Free (paid from $19/mo) | AI-driven reorder suggestions | Yes | Yes | Limited | Yes, basic tier |
| Katana | Custom pricing | Production-driven, not sales-velocity based | Yes, tied to manufacturing orders | Yes | Limited | No |
Pricing and features current as of June 2026 based on each provider's public pricing pages. Confirm current details directly with each provider before deciding, as SaaS pricing changes frequently.
Supremo
Best overall for reorder automation with full transparencyBest for: Shopify merchants who want transparent reorder logic and a full-featured app without paying before they need to scale.
Supremo calculates reorder points using a formula you can actually see and understand: sales velocity × lead time, plus a safety stock buffer, recalculated hourly per SKU. Unlike tools that market "AI-powered forecasting" as a black box, Supremo shows you the math behind every reorder alert.
Every Supremo plan, including the free tier, includes the full feature set: purchase order creation and email delivery, vendor management with lead times, multi-location transfers, stocktakes with variance reporting, and 8 built-in CSV reports. Plans are gated only by product/variant volume. Free covers 100 products, scaling up to unlimited products on the $99/mo Scale plan. There's no feature you have to pay more to unlock.
Where Supremo doesn't compete: Supremo is Shopify-only and does not sync inventory across Amazon, Etsy, eBay, or other channels. It also doesn't use AI/ML demand forecasting models; the reorder logic is rules-based and transparent rather than predictive in the machine-learning sense. If you need multi-channel sync or ML-driven forecasting trained on large external datasets, see Sumtracker or Prediko below.
Pricing: Free (100 products/2,000 variants) · Starter $19/mo (500/10,000) · Growth $49/mo (2,000/50,000) · Scale $99/mo (unlimited)
Sumtracker
Best for multi-channel sync (Shopify + Amazon/Etsy/eBay)Best for: Shopify merchants selling across multiple channels who need accurate, real-time stock sync.
Sumtracker's core strength is multi-channel inventory sync: Shopify, Amazon, Etsy, eBay, Walmart, and others stay accurate from one dashboard. It also supports bundle and component-level inventory tracking, purchase orders, and restock recommendations based on lead time and sales velocity.
Pricing: Starts around $49/mo, no free tier.
Prediko
Best for AI-driven demand forecasting at scaleBest for: DTC brands that want AI-driven demand forecasting at scale.
Prediko's forecasting engine is trained on a large multi-merchant SKU dataset, offering 12-month demand forecasting, automated purchase order generation, and revenue forecasting with seasonal trend analysis. It also supports raw materials tracking for merchants who produce their own goods.
Pricing: Starts at $49/mo for smaller stores, scaling with store GMV up to $349/mo for larger stores.
Fabrikatör
Best for purchase order automation with backorder managementBest for: Merchants who want fast purchase order automation and backorder management.
Fabrikatör combines AI demand forecasting with one-click purchase order generation, including the ability to split POs by freight method or warehouse. Its backorder management lets merchants continue selling temporarily out-of-stock items rather than losing the sale outright, a feature most competitors don't offer.
Pricing: Starts at $99/mo, scaling with store revenue.
Assisty
Best free tier for basic forecastingBest for: Merchants who want AI-assisted forecasting without committing to a paid plan first.
Assisty offers one of the more generous free tiers in this category: basic inventory tracking, sales history, and a handful of custom reports at no cost. Paid plans add deeper forecasting and centralized replenishment across multiple locations and suppliers.
Pricing: Free tier available; paid plans start at $19/mo.
Katana
Best for merchants who manufacture their own productsBest for: Merchants who manufacture their own products rather than reselling finished goods.
Katana is built around bill-of-materials tracking, raw material stock, and production scheduling that connects directly to Shopify sales demand. It's a fundamentally different category from the other tools on this list, built for makers, not resellers.
Pricing: Custom, typically higher than reseller-focused tools given the manufacturing feature set.
How to Choose
Frequently Asked Questions
What is the best Stocky alternative for Shopify in 2026?
There isn't a single best option for every store; it depends on what you used Stocky for. For reorder point calculation and purchase order management with full transparency, Supremo is a strong fit. For multi-channel inventory sync, Sumtracker is built specifically for that. For AI-driven demand forecasting at scale, Prediko and Fabrikatör are the leading options.
Is there a free Stocky alternative for Shopify?
Yes. Supremo and Assisty both offer free tiers with real functionality, not just a trial. Supremo's free tier includes every feature (reorder alerts, purchase orders, vendor management, multi-location transfers, and reporting) for up to 100 products. Assisty's free tier covers basic inventory tracking and a limited set of reports.
Do these apps automatically import data from Stocky?
Most do not offer fully automated Stocky imports, largely because Stocky itself doesn't provide an export path for supplier and vendor data to any third-party app. Several providers, including Supremo, offer manual migration assistance to help re-enter vendor lists and purchase order history after installation.
What's the difference between AI forecasting and a reorder point formula?
A reorder point formula (used by Supremo and similar tools) is a transparent calculation, typically sales velocity multiplied by lead time plus a safety stock buffer, that you can see and verify. AI/ML forecasting (used by Prediko, Fabrikatör, and others) uses predictive models trained on larger datasets, which can catch more complex seasonal patterns but is less transparent about exactly why a recommendation was made.
Do I need a multi-channel sync tool if I only sell on Shopify?
No. Multi-channel sync (offered by Sumtracker and similar tools) is only necessary if you sell on additional platforms like Amazon, Etsy, eBay, or Walmart alongside Shopify. If Shopify is your only sales channel, a Shopify-native tool covers your needs without the added cost of multi-channel features you won't use.