
Pricing optimizationBy James BuildsLaunched October 9, 2026Updated October 10, 2026
PromoMath launched on October 9, 2026. Shoplist is watching for its first storefront installs and tracking pricing in the meantime.
Get alerted on first storefront installs, review spikes, pricing changes, and listing edits.
Check your margin before you launch a sale. See the safe discount limit on every variant.
You pick a discount. You pick the lowest gross margin you are willing to keep. PromoMath reads your live prices and cost per item from Shopify and sorts every variant into Safe, Low margin, Losing money, or Missing cost. It also shows the highest discount each variant can take and still clear your floor. Run it on all products, one collection, or a few products. Export the results to CSV. There is nothing to install or sync, and your data stays in Shopify. Requires Cost per item in Shopify.
Every number on this page comes from public storefront scans and the public Shopify App Store listing. If Shoplist shows PromoMath on a store, it is there.
Read the data methodology