StackEasy — Smart Card Picker & Flight Watch

Free. Best card for any checkout, plus we catch price drops on flights you booked so you can claim the difference.

StackEasy makes the cards you already own earn more — for free, without ever seeing your bank login. At checkout, it shows the single best card to use and exactly why. Track a flight you already booked and it catches price drops so you can claim the difference. And it keeps you off the wrong card with 0% APR and utilization alerts. No coupons, no link hijacking, no account required to start. ━━━━━━━━━━━━━━━━━━━━ BEST CARD AT EVERY CHECKOUT ━━━━━━━━━━━━━━━━━━━━ Land on a product or checkout page and StackEasy ranks your cards for that purchase in real dollars, not a vague "rewards rate." It values points honestly (Chase UR at 1.75¢, not a flat 1¢) and shows the math, so you can see why the top pick wins. It even factors a card about to lose its 0% APR window or sitting near its limit because that's a losing swipe no matter the rewards. Build a wallet from thousands of cards with no account needed. 900+ cards rank instantly offline; 450+ merchants recognized. ━━━━━━━━━━━━━━━━━━━━ FLIGHT PRICE DROP WATCH ━━━━━━━━━━━━━━━━━━━━ Add a flight you already booked. StackEasy re-prices the same seats and times and tells you when the fare genuinely drops. Southwest included. Fare-recovery services take ~25% of what you get back. This is free, and you keep all of it. ━━━━━━━━━━━━━━━━━━━━ NEVER THE WRONG CARD ━━━━━━━━━━━━━━━━━━━━ Connect your StackEasy account (read-only) and see 0% APR deadlines, utilization warnings, payment-due reminders, and the card benefits you're paying for so spend never lands on the card that costs you. ━━━━━━━━━━━━━━━━━━━━ BUILT ON TRUST — THE PART OTHERS GET WRONG ━━━━━━━━━━━━━━━━━━━━ • We never see your bank login. Signing in connects your StackEasy account only — never a bank credential. • No link hijacking. We never rewrite your links or take a commission on your purchases. (That's how coupon extensions actually make money. Not us.) • On-device by default. Page detection happens in your browser; the pages you visit are never sent anywhere. • No analytics, no browsing history, no selling your data. Ever. Free. Made by StackEasy (stackeasy.ai) for people who run their cards like a system. Privacy policy: https://www.stackeasy.ai/extension/privacy/