Have your own membership application that makes the shop more attractive. It gives opportunity to have more customers by providing better service to them. Shop owners can list up various coupons on the coupon market in the app. Customers can buy and use the coupons anytime anywhere. 1. Collect stamps and get a free coupon. Get 10 stamps in the shop, 1 free coffee coupon will be issued. Just show the coupon to the shop manager. 2. Earn points. Every time you buy the coffee, you get 5% out of your total payment as points. That points can be used for buying any goods in the shop.