Press

CardStack is the app that finally makes premium credit cards pay off. Built for people who carry annual-fee cards and want every dollar of value back, it turns a messy pile of credits, offers, rewards, and renewal dates into something you can actually keep up with.

The app automatically tracks your statement credits as you spend, watches every purchase to show how much you earned or missed by using the wrong card, and gives you a heads-up before a credit expires, an annual fee posts, or a new transfer bonus goes live.

A built-in AI agent understands what's in your wallet, so you can ask it anything, from "which card should I use for groceries?" to "what am I about to lose this month?"

CardStack works on iPhone and iPad, with Chrome and Safari extensions that help you add Amex and Chase offers while you shop. It supports 100+ cards from Amex, Chase, Capital One, Citi, Bilt, and more, and connects securely through Plaid without ever storing your bank login. CardStack is free to start, with CardStack+ unlocking the automatic experience.

CardStack is free to download. The free version lets you add your cards and check off credits yourself.

CardStack+ does it for you: automatic credit tracking, one-click Amex and Chase offer activation via the browser extension, the Stack AI agent, spending analysis, Best Card, Points Tracker, and Home Screen widgets. It's $69.99 a year or $7.99 a month (USD) after a 7-day free trial, billed through the App Store or cardstack.money. Cancel anytime.

CardStack runs on iPhone and iPad, with Sign in with Apple. There are also Chrome and Safari extensions that add eligible Amex and Chase offers and recommend the best card while you shop. Free web tools and guides live at cardstack.money.