Credit Card Tracker: CardStack

CardStack helps you save $500+ every year on the credit cards you already carry. Maximize cashback and offers, never miss a statement credit, redeem your points at peak value, and let our AI agent do the heavy lifting — so your cards always pay you back more than they cost.

Stop leaving money on the table. Start with CardStack.

FEATURES:

- SAVE MORE WITH CARD-LINKED OFFERS

Automatically add Amex and Chase offers to your cards so you earn cashback and statement credits on purchases you're already making. Browse active offers, see personalized picks matched to your spending, and track every redemption — all in one place.

- NEVER MISS A STATEMENT CREDIT

Track every credit across all your cards automatically — dining, travel, streaming, airline, and more. See which credits are available, which are expiring soon, and which you've already used. Get reminders before you lose them.

- USE THE RIGHT CARD, EVERY TIME

Instantly see which card earns the most for dining, travel, groceries, gas, and every other category. Whether you're booking a flight or grabbing coffee, CardStack tells you the best card to pull out — so you never miss points or cashback.

- STACK AI AGENT — YOUR PERSONAL CARD ADVISOR

Meet Stack, a conversational AI agent that knows your entire card portfolio. Ask it anything:

"What's the best card for this hotel booking?"

"Am I missing any credits this month?"

"Compare my Sapphire Reserve vs. Platinum for a trip to Tokyo"

"How much value am I leaving on the table?"

Stack doesn't just answer — it takes action. It can mark credits as redeemed, set reminders, update your points balances, and generate weekly spending reports showing exactly where you earned and where you missed.

- SEE HOW MUCH YOU'RE EARNING (AND MISSING)

Connect your bank securely with Plaid and unlock full spending analysis:

See points earned vs. points missed on every transaction

Get your optimization score — what percentage of spend hit the best card

View breakdowns by category: flights, hotels, restaurants, groceries, and more

Get "Fix My Stack" recommendations showing exactly which card to swap in

- TRACK YOUR POINTS PORTFOLIO

Monitor balances across Amex Membership Rewards, Chase Ultimate Rewards, Capital One Miles, Citi ThankYou, and more. See estimated cash values, explore transfer partners, and know exactly what your points are worth.

- COVER YOUR ANNUAL FEES — OR CANCEL WITH CONFIDENCE

CardStack's Renewal Advisor calculates whether each card pays for itself based on your real usage. When your annual fee posts, get a clear verdict: keep, downgrade, or cancel — backed by data, not guesswork.

- SMART NOTIFICATIONS THAT SAVE YOU MONEY

Credits expiring soon

Annual fee renewal approaching

Offers about to expire

Missed optimization opportunities

AI-generated insights based on your spending

- CARDSTACK+ UNLOCKS THE FULL SYSTEM

Upgrade to unlock powerful automation and intelligence:

Stack AI Agent with full conversation history

Secure bank sync with Plaid for automatic transaction analysis

Auto-detect statement credits from your transactions

Earned vs. missed rewards analysis across every purchase

Safari extension that shows the best card while you shop

Automatically add Amex & Chase offers

Weekly AI spending reports and optimization scores

Personalized "Fix My Stack" recommendations

Sync across all your devices

YOUR CARDS ARE COSTING YOU — OR PAYING YOU. KNOW WHICH.

CardStack turns your credit cards into a money-saving system. Every credit tracked. Every offer captured. Every purchase optimized.

Download CardStack and start saving.

Terms of Use (EULA):

https://www.apple.com/legal/internet-services/itunes/dev/stdeula/