Chang Family is a loyalty program offered by SCG Cement-Building Materials Co. Ltd. for its customers who purchase building materials through its authorized dealers. This Android app allows users to redeem items using the points earned from their purchases. In addition, users can check their point balance and stay up-to-date with the latest news and promotions offered by SCG.

The interface of the app is user-friendly and easy to navigate. Users can quickly view their point balance and browse through the available redemption items. The app also provides users with a list of SCG authorized dealers, making it easy to find the nearest dealer.

Overall, Chang Family is a useful loyalty program for customers who frequently purchase building materials from SCG authorized dealers. With its simple interface and easy-to-use features, it is a convenient way to stay up-to-date with the latest promotions and earn rewards for your purchases.