The インターホンアプリ Type A is a lifestyle application designed for iPhone users, offering a suite of features for managing visitors. Users can view live video, communicate with visitors, receive alerts, and unlock electronic doors. The app allows for zooming in on specific areas when a visitor rings the intercom, enhancing security and convenience. It operates effectively within wireless LAN areas of homes or via 4G connections, ensuring that users can attend to guests even when away from home.

This app is specifically compatible with the VIXUS ADVANCE system for apartments and the WP-24 series for standalone houses. Certain features, such as visitor recording and audio, are available for a fee, with a three-month free trial for new users. To utilize the app, a compatible wireless LAN router and internet connection are required. The user must manage subscription settings through their iTunes account to avoid unexpected charges.