Get more from your cards.
Tell us what's in your wallet. In under a minute, you'll know the right card for every purchase, which credits are expiring, and how your rewards are really stacking up.
Earn that free flight faster
The right card at every purchase adds up quick.
Build toward that hotel stay
More points per dollar when you use the right card.
Stop wasting what you're paying for
Every credit tracked before it expires.
Built for people who carry more than one credit card.
The Multi-Card Holder
You've got a few good cards but can never remember which one to pull out at checkout. Cardzen tells you instantly. No Googling, no guessing.
The Rewards Maximizer
You already care about points and cashback, but you want to go from good to optimal. Cardzen factors in rotating categories and promos.
The Frustrated Forgetter
You know your cards have credits (dining, Uber, airline) but you keep forgetting to use them. Cardzen tracks every one.
Chase Sapphire Reserve
Visa
American Express Gold
American Express
Capital One Venture X
Visa
Citi Double Cash
Mastercard
All your cards. One place. Zero chaos.
Pick your cards from our list. In under 60 seconds, Cardzen knows every reward rate, bonus category, credit, and perk across your whole wallet. No bank linking. No account credentials. No card numbers.
The right card, every time.Actionable insights included.
Ask which card to use at any store or spending category. Cardzen considers your entire wallet: base reward rates, rotating bonuses, and current promotions.
Stop paying for perks you forget to use.
Most premium cardholders miss over 50% of their available statement credits each year. Cardzen makes sure you never miss one.
Your daily dose of card wisdom.
Every day, Cardzen surfaces a personalized insight based on your wallet. A bonus category rotation, a credit about to expire, or a benefit you didn't know you had.
Your Freedom Flex just started earning 5x at restaurants this quarter. Time to eat well.
- You've used 68% of your card credits this month
- Amex Gold dining credit resets in 5 days
Your data stays yours. Period.
We built Cardzen around privacy, because your financial habits are your business.
No card numbers
We never ask for card numbers, account numbers, CVVs, or any financial credentials. Ever.
No bank linking necessary
We don't need to connect to Plaid or your bank. You just tell us which cards you carry.
No 3rd-party sharing
Your data is never sold, shared with advertisers, or used to train AI models.
Delete anytime
Delete your account and all your data is permanently removed. No hoops, no dark patterns.
Loved by financial enthusiasts.
Real feedback from early users who optimized their wallets with Cardzen.
“Between building agents and working nonstop in SF, I don't have time to figure out which card to use or track expiring credits. Cardzen does all of that for me.”
Bhargav Yadivalli
AI Payments Enthusiast
“I had no idea I was leaving $200/year in Amex credits on the table. Cardzen caught it in 30 seconds.”
Marcus Chen
Holds 6 credit cards
“I used to keep a spreadsheet. Now I just pull up Cardzen on my phone. I can check my cards on the go and it's never wrong.”
Sarah Jenkins
Holds 4 credit cards
Frequently Asked Questions
Stop leaving rewards
on the table.
No bank linking. No sensitive data. Just tell us what cards you carry and start optimizing in under a minute.
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