聖瑪莉sunmerry is a free Android app developed by Sunmerry that offers a comprehensive view of their official information, including product details, promotional offers, and store information. It also serves as a platform for members to accumulate points and redeem them for rewards. With the app, users can easily check their points and transaction history.

Aside from being a loyalty program, 聖瑪莉sunmerry can also be used for marketing and interactive consumer activities, such as push notifications and campaigns. Moreover, it has an online shopping feature that enables customers to have a seamless shopping experience.

Overall, 聖瑪莉sunmerry is a must-have app for Sunmerry customers who want to stay updated with the latest offers and easily access their account information.