WhichCard Use the Right Card
Calculate Interest-free Period
About
This app helps you manage multiple credit cards by automatically calculating the interest-free period for each. Make informed spending decisions to maximize cash savings and avoid unnecessary interest charges.
What's New in WhichCard Use the Right Card
1.3.0
October 14, 2025
Fixed an issue where membership could become invalid in some cases.
Subscription plans
Yearly
/ year (billed yearly)
Developer apps
FAQ
How does WhichCard calculate interest-free periods?
WhichCard automatically calculates the interest-free period for each of your credit cards. This helps you understand when payments are due to avoid interest charges and maximize your grace periods.
Can I see my interest-free periods without opening the app?
Yes, WhichCard features a beautiful home screen widget. This allows you to quickly and conveniently check your credit card's interest-free period directly from your home screen.
What are the subscription options for WhichCard?
WhichCard offers monthly ($0.99), quarterly ($1.99), and yearly ($4.99) subscription plans. These plans provide access to premium features and support the app's development.
Does WhichCard have ads?
Yes, WhichCard contains advertisements. These ads help support the app's development and allow it to remain free to download and use.
What devices does WhichCard support?
WhichCard is currently supported on iPhones. Future updates may expand compatibility to other devices.
How often is WhichCard updated?
The latest version of WhichCard is 1.3.0, last updated on October 14, 2025. Updates typically include new features, bug fixes, and performance improvements.
What is the age rating for WhichCard?
WhichCard has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.
Is WhichCard secure for my financial information?
While WhichCard helps you manage your credit card information, it's important to review their privacy policy for details on data handling. The app focuses on calculating interest-free periods rather than storing sensitive account details.
