au PAY カード is a free iPhone app developed by au FINANCIAL SERVICE CORPORATION. It is designed to make the use of au PAY カード more convenient and secure. With this app, users can easily and safely log in using biometric authentication such as fingerprint or face recognition. The home screen provides quick access to important information, such as billing amount and payment due date. Users can also check their usage details with just a tap, and set up push notifications to monitor their usage and prevent overspending.

The app also allows users to stay updated with the latest campaign information and check their entry status easily. Additionally, users can quickly check their available points (Ponta Points) within the app.

With features like consolidated billing information, easy-to-use transaction details, and biometric login, au PAY カード provides a convenient and secure way for users to manage their payments and rewards. Please note that this app is only available for users with an au ID and au PAY カード or au PAY ゴールドカード.