PeasyOS builds free inventory and production software for consumer packaged goods brands. Its product, Peasy, replaces the spreadsheets and overpriced ERPs that small CPG brands use to run purchasing, production and fulfillment. Lot codes, recipes, multi-location counts and a QuickBooks connection are all in the free core. Peasy is free because the company earns from things brands already pay for, such as invoicing and bill pay, if they choose to use those workflows.