CostSonar

CostSonar tracks your product costs and alerts you when items sell below cost. Unlike Shopify's single cost field that gets replaced with each update, this app maintains a complete dated history of all cost changes from your first check. The app automatically sorts your catalog to show variants selling below cost (with biggest losses first), products with no cost set, and items on thin margins. You'll get email notifications when profitable products start losing money, helping you catch pricing issues before they impact your bottom line. CostSonar operates with read-only access and never writes to your store. Draft and archived products are automatically skipped, keeping your reports focused on active inventory.