プレミアムウォーター is the official app provided by PREMIUM WATER INC., a company that focuses on delivering delicious natural water to your home. With this app, you can easily place orders for water, check and modify delivery dates, and access other convenient features, all from your smartphone. The app aims to provide a seamless and hassle-free experience for customers.

Some of the key features of this app include the ability to add additional water orders with just a few taps on your phone. You can also check and modify your delivery schedule, including changing the expected delivery date and time slot. The app also allows you to view the delivery history of the water you have received.

In addition, you can manage your payment methods by registering or changing your credit card information directly within the app. The app also provides options to view and modify your contract information as well as your delivery address.

Please note that this app is exclusively for customers of the "プレミアムウォーター" and "和のしずく" brands.

The app is compatible with iOS 10.0 and above.