Online shopping is where most of us lose the most rewards. You're on a checkout page, credit card field waiting, and you type in whatever card number you remember — usually your default. SuperPay's browser extension changes that.
How It Works
When you install SuperPay for Chrome or Safari, the extension activates on checkout pages across thousands of online retailers. As the payment form appears, SuperPay displays a subtle overlay showing which card in your wallet earns the most at that specific merchant.
No app switching. No looking up bonus categories. No mental math. Just a clear recommendation right where you need it.
Beyond Card Recommendations
The extension does more than suggest the right card:
- Merchant-specific tips: "This retailer codes as 'online retail' — your Chase card earns 5x here this quarter"
- Spending cap alerts: "You're $200 away from your quarterly bonus cap on this card"
- Portal reminders: "This retailer is available through your card's shopping portal for an extra 3%"
- Price protection: Alerts when a recent purchase drops in price (on cards that offer this benefit)
Privacy First
SuperPay's extension runs locally in your browser. It doesn't inject scripts into payment forms, doesn't access your card numbers, and doesn't track your browsing history. It only activates on checkout pages and communicates with SuperPay's servers to fetch card recommendations.
Available for Chrome and Safari
SuperPay's extension works on Chrome (and all Chromium browsers like Edge and Brave) and Safari. It syncs with your SuperPay account so your full card portfolio is available for recommendations without re-entering any information.
Online purchases account for over 60% of rewards lost to suboptimal card selection. With SuperPay's browser extension, that gap closes to zero.