TodayKa is a minimalist app for managing credit card interest-free periods.
Instantly calculate the
best card and maximize your benefits.
Available on iPhone, iPod touch, and Mac (M1+)
Simple, pure, and secure. Solving just one problem perfectly.
Automatically cycles through calculations of remaining interest-free days based on your statement and repayment dates. No more manual counting.
Support for iOS 18+ widgets. See today's best card and remaining interest-free days right from your home screen without opening the app.
All data (including card expiration, CVV) is stored locally on your device. No collection, no uploading, absolutely secure.