ForecastRx Review: Now Operating as Inventory Optimizer

Editorial note: forecastrx.com now redirects to inventoryoptimizer.ai, which states it is "powered by ForecastRx" (established 2016). This appears to be a rebrand or product evolution rather than two separate tools — the review below covers the current live product.

Inventory forecasting gets exponentially harder once a seller is managing multiple channels, multiple suppliers with different lead times, and both FBA and AWD fulfillment simultaneously. Inventory Optimizer — built on ForecastRx's original forecasting technology — is designed specifically for that level of complexity.

What Is Inventory Optimizer (formerly ForecastRx)?

Inventory Optimizer is an AI-powered demand forecasting and automated restocking platform. It analyzes sales history using more than 100 statistical and machine-learning models to generate 12-month forward-looking forecasts that adapt weekly as sales velocity changes.

Key Features

Unified forecasting across channels. Covers FBA, AWD (Amazon Warehousing and Distribution), FBM, and other multi-channel sales in one forecasting model rather than treating each channel separately.

RestockAMZ. An Amazon-native restocking engine that automatically calculates reorder points and safety stock levels based on the underlying forecast.

POWizard. Automated purchase order generation that respects each supplier's lead times and minimum order quantities (MOQs), reducing manual PO-building work.

Multi-supplier support. Handles different lead times and MOQs per SKU, useful for sellers who source the same or similar products from multiple suppliers.

New product forecasting. For products without sales history, the system blends data from similar products and category seasonality to generate a reasonable initial forecast.

Who It's For

Inventory Optimizer targets Amazon sellers, broader ecommerce brands, Shopify merchants, and multi-client agencies managing inventory across multiple sales channels — particularly sellers whose operations have outgrown simple reorder-point spreadsheets.

Pricing

Starting at $79.95/month, with a 14-day free trial requiring no credit card.

Integrations

Direct connections to Amazon Seller Central, Amazon AWD, Shopify, QuickBooks, and ShipStation, plus open API access for custom integrations.

Strengths and Considerations

The breadth of channel and supplier support — FBA, AWD, FBM, multi-supplier MOQs — makes this a fit for sellers with genuinely complex supply chains rather than a single-SKU, single-supplier operation where a simpler calculator would suffice. The platform cites specific customer outcomes (a 92% drop in stockouts for one home goods brand, $84K in freed cash for an 8-figure supplement brand in a single quarter) that illustrate potential impact, though results will vary by category, supplier reliability, and how disciplined a seller is about acting on the forecasts. Since this product represents a rebrand/evolution of ForecastRx, sellers who remember the earlier name should expect the current experience to be under the Inventory Optimizer branding going forward.

Frequently Asked Questions

Is ForecastRx still available under that name? The domain forecastrx.com now redirects to inventoryoptimizer.ai, and the current site states it is "powered by ForecastRx" — the product continues under the Inventory Optimizer name.

What does Inventory Optimizer cost? Starting at $79.95/month, with a 14-day free trial and no credit card required.

Does it support Amazon AWD (Amazon Warehousing and Distribution)? Yes, forecasting and restocking cover AWD alongside standard FBA and FBM.

Can it generate purchase orders automatically? Yes, via the POWizard feature, which respects supplier-specific lead times and minimum order quantities.

Bottom Line

For sellers with multi-channel, multi-supplier inventory complexity, Inventory Optimizer (ForecastRx's current form) offers a more sophisticated forecasting and restocking engine than simple reorder calculators — the 14-day free trial is a low-risk way to test it against your current process.