Ding Reminder is very easy to use, just select your gender and enter your current weight, and Water Drink Reminder will help you determine how much water your body needs every day, You can also tracker water history, reach your daily goal to open the respective achievements, and many other useful functions Remember to update the app each time you drink a cup of water. Then the app will remind you when it's time for another drink. Hydration helper not only tracks what you drink, but also reminds you when it's time for another drink. * Key Features include: