Favorite habit tracking app

I used the Way of Life app (iOS, Android) to make a habit of making my bed. The simple app lets you set up a list of habits you want to make or break. Once a day you touch a red X or a green checkmark to record your success or failure. It took me about two years to get to the point where I don’t think about making my bed. I just do it. It’s free if you track three or fewer activities. The full version, with unlimited activities, is $5. — MF