The 西友アプリ (Seiyu App) is a versatile shopping application designed for the iPhone platform, enabling users to earn and redeem Rakuten points while shopping at Seiyu stores or through their online supermarket. This free lifestyle app offers a seamless shopping experience for essential items ranging from fresh produce to daily necessities, ensuring convenience for those who prefer shopping from home or on the go.

Key features include easy access to online supermarket shopping with a user-friendly interface, special coupons, and promotions. Users can receive push notifications about deals available in-store and online. The app also supports same-day delivery for heavy items and allows users to accumulate Rakuten points with every purchase, enhancing the overall shopping experience while providing access to exclusive offers and detailed product information.