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Decide the Best Card
Instantly

Stop guessing which credit card to use. Get smart recommendations based on interest-free days. Maximize savings on every purchase.

2 sec
App Launch
100%
Offline
0
Bank Login
Get Early Access

🔒 Privacy-first. No tracking. Data stays on your device.

CardWise App Screenshot

Sound Familiar?

🤔

Decision Fatigue

You have 3+ credit cards but always guess which one to use at checkout.

📅

Complex Bill Cycles

Different statement dates make it hard to remember which card gives the longest interest-free period.

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Leaving Money on Table

You're not maximizing interest-free days, which means less time for your money to work.

How CardWise Helps

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Smart Recommendations

See which card gives you maximum interest-free days today. Updated in real-time.

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Privacy First

All data stored locally. No cloud sync, no login, no tracking. Your cards, your device.

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2-Minute Setup

Add your cards with just statement date and due date. Start saving immediately.

📱

Works Offline

No internet needed. Make decisions anywhere, anytime.

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Auto-Refresh

Recommendations update daily and when you open the app.

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Simple & Clean

No clutter, no charts, no dashboards. Just the answer you need.

Simple 3-Step Process

1

Add Your Cards

Enter card nickname, statement date, and due date. Takes 30 seconds per card.

2

Get Instant Recommendation

See which card gives you the most interest-free days today.

3

Make Your Purchase

Use the recommended card confidently and close the app.

Join the Waitlist

Be among the first to maximize your credit card benefits. Limited early access spots available.

✓

You're on the list!

We'll notify you when CardWise is ready for testing.

Frequently Asked Questions

Is my card data safe?

Absolutely. CardWise stores all data locally on your device. We don't have servers, cloud storage, or any way to access your information. You're never asked for card numbers or bank credentials.

How does the calculation work?

We calculate interest-free days based on your statement date and due date. Purchases made right after the statement date get the longest interest-free period (statement to next due date).

Does it work with all banks?

Yes! CardWise works with any credit card from any bank. You just need to know your statement date and due date.

When will it launch?

We're currently in internal testing. Waitlist members will get early access in February 2026, followed by public release on Play Store.

Is it free?

The MVP is completely free with no ads. We may introduce a premium version in the future with additional features, but the core recommendation engine will always be free.

Do you offer rewards optimization?

Not in MVP. Our focus is solving one problem perfectly: maximizing interest-free days. Reward optimization is planned for future updates.