The au Wi-Fi service offers a secure and convenient way for both au users and non-users to access free Wi-Fi at various locations nationwide. By logging into the app with an au ID, users can automatically connect to over 100,000 free Wi-Fi spots in cafes, family restaurants, train stations, and city centers, ensuring high-security internet communication for everyone at no cost. With KDDI Group's reliable network, users can enjoy activities like watching videos, downloading content, and updating apps with peace of mind, even during high-volume data usage.

The app provides features such as secure au Wi-Fi spots with high-security authentication methods to block malicious access points and prevent eavesdropping through encryption, ensuring a safe and worry-free browsing experience. Users can easily connect to Wi-Fi outside their homes within supported areas without the need for manual connection or authentication steps, making it a convenient option for seamless internet access on the go.

Additionally, users can easily locate supported spots such as restaurants, public transportation hubs, and shops that accept au PAY through a list of main coverage areas and an area map feature with location-based information. The app also allows users to monitor their current Wi-Fi connection status, check monthly Wi-Fi data usage, and receive exclusive au Wi-Fi coupons at cafes and other locations with au Wi-Fi spots, enhancing the overall value and benefits of using the service.