CashBackStacks — CashBackStacks

Maximize your cashback, airline miles, and credit card rewards while shopping at over 38,000 stores.

CashBackStacks shows a lightweight widget on supported stores to compare shopping portal rates, surface card-linked offers, and highlight your best credit card rewards—so you can stack savings and never miss a deal.

📊 COMPARE 40+ SHOPPING PORTALS
Instantly compare cashback rates from Rakuten, TopCashback, Capital One Shopping, and 40+ other portals. See which portal pays the most for any store—updated in real time.

✈️ EARN AIRLINE MILES & TRAVEL POINTS
Track rewards from airline shopping portals including Alaska Mileage Plan, Delta SkyMiles, United MileagePlus, Southwest Rapid Rewards, American AAdvantage, and more.

💳 YOUR CARDS, YOUR REWARDS
Add your credit cards to see personalized category bonuses. CashBackStacks highlights your best card for each store so you know exactly which card to use.

🔗 SYNC & STACK CARD-LINKED OFFERS
Sync offers from Amex, Chase, Citi, Capital One, PayPal, and SimplyMiles. Search all your offers in one place and stack them with portal cashback for maximum savings.

📈 RATE HISTORY & TRENDS
View historical rate charts to see if today's offer is a good deal or if you should wait. Never overpay for a mediocre rate again.

🛒 PRICE TRACKING & ALERTS
Track product prices from Amazon, Best Buy, and more. Set price drop alerts and get notified when items hit your target price.

🔔 WATCHLIST WITH ALERTS
Save your favorite stores and products to a watchlist. Receive alerts when cashback rates increase or prices drop.

Privacy-first: Your data stays in your browser—synced offers and cards are stored locally, not on external servers.

See additional details and learn more at cashbackstacks.com