This app is exactly what I was looking for! Set your own water amount that you normally drink (there are two icons that represent a smaller amount of water and a larger one). In my case. I out in 12oz and 16oz because the cups I use at work are 12oz and at home out cups are 16 oz. The app lets you choose how often you want to be reminded to drink some water. In my case, once an hour. When you drink water you hit a plus sign (add) and hit the small or large icon (12oz or 16oz, in my case) and thats it! You also set your total amount of water you want to hit as a target every day (64oz in my case); this app shows a cool picture showing what percent of your goal youve achieved. So cool and useful! It does exactly what you need to reach your goal every day. I highly recommend it!