ProfitShield

Every other profit app tells you which orders lost money after they ship. ProfitShield stops them at checkout — before you lose a cent. It computes each order's true net profit — COGS, shipping, payment fees, discounts, and packaging — in real time, then flags or blocks the orders that break your margin rules. Set a profit floor per store; start in Flag mode and switch on Block when you're ready. Flat pricing, no per-order fees. Free plan for small stores. No Shopify Plus or ERP required.