Daily card recommendation
Open the app and immediately see which card gives you the longest grace period for a purchase today, plus the matching payment due date.
Now on the App Store
Built for multi-card users in North America and Europe
CardWin
See which card to use today.
CardWin helps you decide which credit card to use today based on statement closing dates, payment due dates, and your repayment schedule. Add your cards once, then check the app, widget, or daily reminder to see which option gives you the longest grace period for a new purchase.
CardWin is a billing utility for tracking dates and estimating grace periods. It does not provide financial services, connect to banks, or constitute financial advice.
Best Card Today
Chase Sapphire
Due Apr 20
38
days free
01
Add each card's statement rules
02
See the best card for today
03
Keep due dates in view
Built around real statement cycles
Store multiple cards, edit them anytime, and support both same-cycle and next-cycle repayment schedules.
Forward-looking calendar views
Review the next 30 days, compare yearly recommendation distribution, and understand which card comes out ahead most often over time.
Reminders, widgets, and sync
Use payment reminders, daily morning suggestions, home screen widgets, and optional iCloud sync across your own devices.
How it works
Built for quick daily decisions
1
Enter your cards once
Save the nickname, statement closing date, due date, and whether repayment lands in the same statement month or the next one.
2
Let CardWin do the date math
The app handles month boundaries, variable month lengths, and recurring statement cycles so you do not have to reason through edge cases every time.
3
Use the recommendation daily
Check the home screen, widget, or scheduled notification to make faster spending decisions and keep upcoming due dates visible.
Privacy first
Clear scope, local storage, no bank connection
CardWin is intentionally positioned as a private utility, not a finance platform. You enter statement rules manually, the app calculates recommendations on-device, and the scope stays deliberately narrow.
No personal data collection or tracking.
No card numbers, CVVs, bank logins, or account credentials stored.
Only the card labels and statement rules you type in are saved.
Data stays on your device and, if enabled, in your own iCloud account.
No ads, no third-party analytics SDKs, and no bank integrations.
CardWin
A clean landing page, a stable privacy policy, and a ready-to-use support URL.
This English version is tailored for users in North America and Europe who want a simple way to reason about card billing cycles without spreadsheets or bank integrations.