The Denver app that pays you to scan grocery receipts quietly became the plumbing behind the coupons at Walmart, Instacart and DoorDash - and rang the bell on Colorado's biggest tech IPO.
The internet made coupons abundant and saving money strangely complicated. Two former college roommates built a media company around doing the tedious part for everyone else - then turned trust at the checkout lane into a business brands want to buy into.