My Sunshine City is an app designed to enhance the convenience of using the Sunshine City complex in Ikebukuro. Tailored coupons, services, and event information are delivered to you based on your preferences. By registering your favorite stores, you can quickly check for new products and campaign information.

For workers at Sunshine City, exclusive services are provided for even greater benefits. Whether you are a frequent visitor for leisure or a daily commuter for work, using this app will undoubtedly make Sunshine City your personalized haven.

The app's key features include easy searching for basic information on shops, restaurants, and amusement facilities within Sunshine City, as well as available services and coupon details. Stay updated with personalized news, receive coupons for in-house and nearby events, prioritize news from your favorite stores, and collect stamps for additional perks through app-linked campaigns.

Exclusive service features for Sunshine City workers include the City ID service for easy access via the app, accumulating stamps for perks, and creating a personalized aquarium with each completion of the City ID stamp card.