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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)

  1. Tap the Share button
  2. Scroll down and tap "Add to Home Screen"
  3. Tap "Add" to confirm

Android (Chrome)

  1. Tap the three dots menu
  2. Tap "Add to Home screen"
  3. Tap "Add" to confirm

Contact

Have a suggestion? Would you like to see a card added? Email us at hello@cardzen.app