
Staff notifications & AnalyticsBy Ecosphere InnovationsLaunched October 2, 2026Updated October 14, 2026
PromoProof ‑ Discount Monitor launched on October 2, 2026. Shoplist is watching for its first storefront installs and tracking pricing in the meantime.
Checks each discount on a real cart, not just settings; alerts you if one breaks or over-discounts.
A broken discount code turns shoppers away. An over-generous one bleeds margin. Both fail silently, no warning. PromoProof builds a real cart and checks each discount exactly the way Shopify does, confirming it applies and matches the amount you set, to the cent. Catch a ghost discount before a customer does, or stacking rules that quietly over-discount. No theme code, no scripts added to your storefront. It only alerts after re-confirming a real problem, so every email is worth acting on.
Every number on this page comes from public storefront scans and the public Shopify App Store listing. If Shoplist shows PromoProof ‑ Discount Monitor on a store, it is there.
Read the data methodologyGet alerted on first storefront installs, review spikes, pricing changes, and listing edits.