Forthcast AI-Powered Demand Forecasting & Inventory Replenishment for Shopify
Forthcast is a smart, AI-driven forecasting and demand planning platform built exclusively for Shopify merchants.
As the core forecasting engine inside Forthsuite, the complete supply chain OS for Shopify, it turns your store’s data into accurate predictions, optimal stock recommendations, and fully automated purchase orders.
Using advanced machine learning, Forthcast analyzes your historical sales, seasonality, trends, promotions, and real customer demand signals to generate precise SKU-level forecasts. It helps you prevent stockouts, cut excess inventory, free up working capital, and streamline supplier ordering, all without spreadsheets or manual guesswork.
Built for Shopify brands of any size
From 50 to 50,000+ SKUs, DTC or multi-channel sellers, Forthcast scales effortlessly. Native Shopify integration means one-click setup, automatic syncing of orders and inventory, and your first forecasts ready in minutes, no CSV uploads or technical setup required.
Core Capabilities
AI Demand Forecasting
Accurate SKU-level predictions with confidence intervals
Automatically detects trends, seasonality, growth/decline patterns
New product forecasting by intelligently matching similar SKUs
Bundle & pack decomposition for correct component-level demand
Multi-location and multi-channel support (Shopify + Amazon FBA + TikTok Shop)
Easy manual adjustments for promotions, events, or special spikes
Stockout Prevention & Smart Replenishment
Real-time low-stock alerts and “Revenue at Risk” visibility
Automatic calculation of optimal stock levels, reorder points, and safety stock
Lost Sales Tracker to measure the real financial impact of stockouts
Custom service levels tailored to your risk tolerance
Automated Purchase Order Management
Generates ready-to-send draft purchase orders with recommended quantities
Fully respects Minimum Order Quantities (MOQs) and supplier rules
One-click emailing of POs directly to suppliers from the dashboard
Scheduled replenishment cycles (e.g., every 4, 8, or 13 weeks)
Supplier lead-time tracking and monthly budget prioritization
Stock Health & Performance Analytics
Actionable Stock Health dashboard that categorizes every SKU (imminent stockouts, overstock, slow movers, well-balanced)
ABC analysis, sell-through velocity reports, and anomaly detection
Detailed forecast accuracy metrics (MAPE, bias) with continuous improvement
Simple & Affordable
Flat pricing at just $19.99 per month, unlimited SKUs, unlimited orders, no transaction fees, no hidden costs. Includes a 14-day free trial (no credit card needed). Forecasts refresh daily so your plans stay current.
Forthcast replaces manual planning and expensive tools with fast, accurate, automated inventory intelligence, giving Shopify merchants professional-grade supply chain power at a price that actually makes sense.
Average Rating: 5.0/5.0
Total Reviews: 5
How Do G2 Users Rate Forthcast?
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Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.9/10)
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Data Exporting / Importing: 8.3/10 (Category avg: 8.3/10)
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What is your organization's estimated ROI on the product (payback period in months)?: 3.3/10 (Category avg: 10/10)
Who Is the Company Behind Forthcast?
Who Uses This Product?
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Company Size: 80% Small, 40% Medium