App visits to Costco's platform leapt 63 percent year over year in 2026 — the single most commercially significant behavioral metric in Costco's digital ecosystem, communicating that the member community has discovered something that the casual warehouse shopper has not yet acted on: the Costco app is not just a digital membership card. It is the most commercially useful tool available for maximizing the value of a Costco membership. Most Costco members use the app for two th

The Costco app is the most underused tool in the Costco member ecosystem. Most members who have it use it for one or two things — checking the current Member Savings coupon book, or viewing their digital membership card when they have forgotten their physical card. A small, more commercially savvy group of members uses it as a complete shopping and membership management platform that handles everything from prescription refills to custom cake orders to contactless payment at