‘Cafe Droptop’ mobile app is Cafe Droptop’s official application. In addition, with the launch of the Cafe Droptop application, Cafe Droptop's membership service was also resumed. Receive many benefits with the “Cafe Drop Top” app!!! [Main functions] * E-Stamp: After purchasing a product, you can accumulate stamps and exchange the collected stamps for coupons for convenient use. - Coupons can be exchanged within the app after accumulating a certain amount - You can earn stamps by shar