一二三GROUP has released the official app for their ramen specialty stores operating in Miyagi and Yamagata prefectures. The name "一二三" signifies that after visiting three times, customers will be convinced of the taste. Offering unique information like limited toppings and recommended hidden menu items, the app also provides exclusive discounts and coupons for users. Additionally, users can purchase items through the app for enjoying at home. Explore various ways to enjoy their offerings with this app.

The app features a net shop where users can buy ramen sets and chashu, a convenient way to manage membership cards and points, and a stamp collection system for rewards. Users receive push notifications for exclusive updates and discounts, can schedule reminders for their next visit, and sync with iPhone calendars for efficient planning.