Just FYI - the app I use is called "Wonderful Day." Not sure how I found it but it works well for tracking how many days you can keep up with any type of habit, such as not drinking or doing a particular activity. I haven't used it for things like yoga because I don't aim to do yoga everyday (in a perfect world, maybe I would but I'm lucky if I can do 3x per week). It's good for tracking something you really want to do everyday, like not drink.