The いっちょう app serves as the official mobile application for the Japanese restaurant, providing exclusive information and special offers to its members. Users can receive the latest updates and announcements directly from the restaurant, ensuring they stay informed about any important news or promotions.

Key features of the app include access to exclusive coupons available only to app members, allowing users to enjoy monthly discounts. Additionally, the app provides essential information about the restaurant, such as its location and contact details. The restaurant is designed to evoke a traditional atmosphere, resembling an Edo-era alley, offering a cozy setting for diners to relax and enjoy their meals.