CardMaster

Never Use The Wrong Credit Card Again

Know which credit card maximizes rewards at every purchase—instantly.

CardMaster is an AI-powered tool that helps you choose the best credit card for every purchase and maximize cashback or travel rewards automatically.

Introducing Features

CardMaster AI showing best credit card for Whole Foods

Instant AI Recommendations

Type "Whole Foods" → Get "Use Amex Gold: 4% back" in 3 seconds.

Rotating 5% category alerts example

Rotating Category Alerts

Stay updated on rotating categories. Never miss quarterly 5% categories again.

Credit card comparison in Partner Mode

Partner Mode

Shopping with your partner? Compare both of your cards instantly.

Offline mode for AI credit card app

Works Offline

Works offline with cached merchant data.

How It Works

Average user saves $200-500/year

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