You can input the cards in your wallet and see how they complement each other, spot gaps in your setup, and also see the best card to use for a given merchant.
I’m also a founder at OneCard, where we’re building a smart card that’ll eventually handle all of this automatically, routing each purchase to the best card in real-time.
Would love feedback from the HN community!
Show HN: I built a tool to manage and compare credit card rewards
rewards.getonecard.io