The first to do is to find out how much water you're actually using.
H2O tracker uses a quiz to help you learn more about your water usage and then gives tips on how to improve.
To help put your usage in context, the app compares your water usage with average users And even people who live nearby.
Water Wonder is a free app packet tributes app you probably didn't know.
For example, it takes about 1,400 gallons of water just to produce a burger, fries and a soft drink.
Finally, Draw Counter wants to make it easy to track your water usage in real time.
The app connects directly with your water utility to grab usage information you usually don't see un til the bill arrives.
For now the app is only available in five counties but you can change that by downloading the app and using it to send a message to your provider.
In San Francisco, I'm Sharon Profis, CNET for CBS news.