Kudos

Kudos is an AI-powered smart wallet that tells you which credit card to use at checkout to squeeze the most rewards out of cards you already carry. Built as a free browser extension and mobile app, it supports 3,000+ cards across more than a million sites, layers on extra rewards through its Kudos Boost partner network, and keeps track of card benefits so members don't have to. Founded in 2021 by ex-Google Pay and Affirm product leaders, the Los Angeles company crossed 400,000 members and raised a $10.2M Series A led by QED Investors in 2024.