About cardzen
What is cardzen?
cardzen is a free tool that helps you maximize your credit card rewards by showing which cards offer the best cash back rates for different spending categories.
How it works
Simply search for a spending category or credit card to see current reward rates. We maintain an up-to-date database of credit card rewards and provide source links for verification.
Add to Home Screen
Add cardzen.app to your home screen for faster access:
iOS (Safari)
- Tap the Share button
- Scroll down and tap "Add to Home Screen"
- Tap "Add" to confirm
Android (Chrome)
- Tap the three dots menu
- Tap "Add to Home screen"
- Tap "Add" to confirm
Contact
Have a suggestion? Would you like to see a card added? Email us at hello@cardzen.app