Price Elasticity & Markdown Simulator — Log-log regression auto-calibrates elasticity per category. Model any markdown to see velocity lift, GM impact, and projected sell-through.
Promo Planner — Plan promotional events across your assortment. Set discount type, duration, and scope. See per-style lift, GM erosion, inventory risk, and post-promo demand dip before you commit.
Size-Level PO Exports — ISSR builds size curves from your own sales data. PO quantities broken by size with largest-remainder rounding.
OTB Budget Control — Set a dollar cap on planned spend. Real-time budget bar prevents accidental overbuy.
Sell-Through Tracking — Set a target sell-through percentage by week. Styles that miss the mark get flagged automatically.
Inventory Turns & GMROI — Measures how fast inventory converts to revenue and return on inventory investment.
Cannibalization Alerts — When a new launch pulls sales from existing styles, Reactive flags the velocity drop.
Markdown-Only Demand Detection — Flags styles that only sell at a discount before you reorder at a margin that doesn't exist.
How It Works
Upload your sell-through CSV with style-level weekly data (units sold, inventory, price). Reactive builds demand forecasts, flags reorder needs, and generates size-level purchase orders. Set up in 5 minutes — no integrations or IT department required.
Pricing
$29.95/month after a 30-day free trial. No contracts, cancel anytime.
Who Is It For?
Reactive is built for retail buyers, merchandise planners, and inventory managers at small and mid-size brands who have outgrown Excel but don't need enterprise software. Replace your demand planning spreadsheet with automated forecasting, reorder alerts, and purchase order exports — at a fraction of the cost of tools like Anaplan or Toolio.