Every purchase,
just one card.
DanHana is a credit card optimizer and expiring perk tracker for US credit cards. It tells you the one card to use before every purchase, tracks every expiring perk, and keeps your benefit info fresh — automatically.
Tap a store to see the top cards
General catalog ranking, no wallet needed. Your own cards may rank differently.
Costco warehouses accept Visa only.
No bank login required
New here? Premium is $1/mo
New-member price: $1/mo for your first 3 months, then $6/mo. Renews automatically.
Monthly plan · First 3 months · New members · Cancel anytime
New members only — start within 30 days of signing up, and it applies to your first Premium subscription only.
Everything you need to pick the one right card
A living catalog — 100 cards today, new cards added all the time, and every benefit re-checked quarterly so nothing goes stale.
Smart recommendations
Search any store to see which card earns most, at the exact effective rate. Abroad, the overseas toggle hides foreign-fee cards.
Search any store — Starbucks, Delta, Shell — and instantly see which of your cards earns the most, with the exact effective rate. No more guessing at the register or doing mental math on multipliers. Traveling abroad? Flip the overseas toggle and we hide every card with a foreign transaction fee.
Learn more →
Tap-to-flip cards
Tap a card to flip it — front: art, name, best use; back: top benefits, expiring credits with D-day, and the annual fee.
Your wallet, in 3D. Tap any card to flip it over — the front shows the card art, name and what it is best for; the back shows the top benefits, credits about to expire with D-day badges, and the annual fee. It is the fastest way to remember why you keep each card.
Learn more →
Expiry alerts
Every expiring credit, free night and quarterly bonus, watched — with on-site reminders, and email with Premium, before it's gone.
Never lose a perk to a deadline again. DanHana watches every expiring credit, free night and quarterly bonus across your wallet — DoorDash credits, airline fee credits, hotel free nights — and reminds you on-site, and by email with Premium, before they disappear. Monthly credits reset on their own schedule; we track each one.
Learn more →
Annual-fee analysis
A month before your fee hits, used credits and estimated points are weighed against it (Premium) — keep, downgrade or cancel with confidence.
Is that $795 fee actually worth it? A month before your annual fee hits, DanHana adds up the credits you marked as used over the past year, plus an estimate of the points value you earned, and sets the total against the fee (Premium). Then keep, downgrade or cancel with confidence, backed by your own numbers.
Learn more →
Signup-bonus tracker
Track any card's welcome offer against its all-time high and get alerted at a new peak (Premium). Before you apply, the strategy tracker (Premium) checks your logged applications against Chase 5/24, Amex once-per-lifetime and Citi 1/8 rules, among others, and shows when each cooldown clears.
Big signup bonuses come and go — the trick is applying at the peak. Track any card’s current welcome offer against its all-time high, keep a watch list of cards you want, and get alerted the moment a bonus hits a new high (Premium). Never settle for a mediocre offer again. Before you apply, check the application-strategy tracker (Premium): it compares the applications you log against widely known issuer rules — Chase 5/24, Amex’s once-per-lifetime bonus, Citi 1/8, among others — and shows when each cooldown clears.
Learn more →
Side-by-side compare
Any two cards, side by side — fees, earn rates, benefits, expiring credits — plus a verdict on which wins and for what. Custom cards included.
Torn between two cards? Pick any pair and see them side by side — annual fees, earn rates across your top categories, key benefits and expiring credits — with a clear verdict on which wins and for what. Custom cards you added manually work here too.
Learn more →
Household wallet Premium
Link one spouse or partner and get combined picks from both wallets (Premium).
Two wallets are better than one when a household shops together. Link your spouse or partner with a 24-hour invite code and DanHana ranks cards from both wallets together, so every purchase gets the best card in the house — not just the best card in yours. If either of you has Premium, you both get the full feature set; if both subscriptions lapse, the link stays saved and access returns the moment either of you resubscribes.
Learn more →
Card offers
Offers from public offer lists are gathered automatically every week onto your member offers page. Hide the ones you don't use, and share any offer with its own link.
New card offers appear every week, and nobody wants to hunt through issuer pages to find them. Every Monday, DanHana gathers the latest public offer lists and activates them on your member offers page automatically — Chase and Citi straight from their lists, while Amex offers stay curated by hand. Hide the ones you will never use, report any that look wrong or expired, and share a single offer with its own link.
Learn more →One right card, in three steps
Add your cards
Pick your bank and card, then enter the last 4 digits. We never ask for full card numbers.
Ask before you pay
Search the store or pick a category — we name the one card to use, in seconds.
Never miss a perk
Expiring credits and free nights surface automatically, with reminders before they are gone.
Engage your perks — benefits at your fingertip
Pick how you want to hear from us. Every channel keeps the same promise: never miss a perk.
Email alerts
A heads-up in your inbox before any credit or free night expires (Premium).
See details →Monthly report
One email a month that adds up the value you captured — and any money you left on the table. Every member gets it, and it arrives as an on-site notification too.
See details →Calendar alerts
Add any alert to Google Calendar or download it as an .ics file.
See details →SMS alertsPaid plan
Premium text alerts — launching soon. For now, alerts reach you by email, on-site, and calendar.
See details →On-site alerts
On-site bell alerts the moment something needs your attention.
See details →Tips to get more from every card
Chase Freedom Unlimited vs Robinhood Gold Card: the numbers
Two close rivals, compared by year-1 value on DanHana's default spend profile ($3,200/mo total). Signup bonuses and credits are counted at face value.
Read more →
US Cards With No Foreign Transaction Fees
Using a US card in Korea can quietly add a foreign transaction fee to every purchase. Here is every no-foreign-fee card in the DanHana catalog, by issuer.
Read more →
Card benefit changes: 20 cards updated (October week 4)
20 cards had benefit changes in October. Here's the card-by-card breakdown.
Read more →Frequently asked questions
What is DanHana?
DanHana is a credit card optimizer and expiring perk tracker for US credit cards. It tells you the one card to use before every purchase, tracks every expiring perk, and keeps your benefit info fresh — automatically.
How does the recommendation work?
We rank the cards in your wallet for each store or spend category by what each one actually earns there, showing the real effective rate after point values, caps, and quarterly bonuses. Flip the overseas toggle and cards with foreign transaction fees disappear from the ranking. Recommendations are calculated from catalog benefit data and your wallet — they are not financial advice.
Is my card information safe?
We never ask for full card numbers. Pick your bank and card, then enter the last 4 digits only — just to tell your cards apart. On their own, they are useless for payments. We never ask for bank logins, passwords are bcrypt-hashed, every page runs over HTTPS, and we never sell your data.
What is free, and what is Premium?
Free is free forever: up to 3 wallet cards, smart card recommendations, store search, on-site notifications, the monthly report, side-by-side card comparison, and custom cards. Premium is $6/month ($60/year) and adds everything in Free, plus unlimited cards, benefit expiry email alerts, annual-fee renewal analysis (based on used credits and estimated points value), signup-bonus peak alerts, the full new-card simulator, the full missed-money breakdown, the application strategy tracker, and the household wallet. While the new-member intro offer is running, the first 3 months are $1/month. You can cancel anytime and keep Premium until the end of your paid period.
Which cards are covered?
100 US cards are in the catalog today, and new cards are added all the time. Every benefit is re-checked quarterly so nothing goes stale. A card that is not in the catalog can be added as a custom card.
How do expiring-perk alerts work?
We track every credit, free-night certificate, and quarterly deadline in your wallet. On-site notifications arrive 7 days before expiry; email alerts (Premium) bundle everything expiring within 14 days in a weekly check. Free nights follow the expiry date you entered in your wallet, and every alert carries an add-to-calendar link. The monthly report goes to every member by email and on-site notification.
What are card offers?
Every Monday, public card offer lists are gathered and activated on the member-only offers page automatically. Chase and Citi offers come straight from their published lists; Amex offers, whose source page has no stable structure, are curated by hand instead of guessed at. Hide any offer you will never use (and bring it back any time), report one that looks wrong or past its date, and share a single offer with its own link. Actually enrolling in an offer still happens on the issuer website.
Can I share DanHana with my spouse?
Yes. Link one spouse or partner with a 24-hour invite code and DanHana ranks cards from both wallets together, so every purchase gets the best card in the house — not just the best card in yours. Household wallet is a Premium feature, but if either of you has Premium, you both get the full feature set. If both subscriptions lapse, the link stays saved and access returns the moment either of you resubscribes.