✓ Habit Streak helps you achieve your goals (or New Year's Resolutions) in exercise, diet or other areas of your life. Each day you report on whether you succeeded yesterday, building up streaks of habits and ingraining the activities into your life.
"After a few days you'll have a chain. Just keep at it and the chain will grow longer every day. You'll like seeing that chain, especially when you get a few weeks under your belt. Your only job next is to not break the chain" (Jerry Seinfeld)
Habit Streak has two key advances on Jerry Seinfeld's original technique. Firstly it allows you to build several chains up at once. Secondly it (optionally) prompts you every day to report on your success (whereas one could easily forget to update or look at a physical calendar).
✓ Habit Streak is simple, clear, easy to use and Free.
"Fantastic. Easy to use, and I'm finding it effective for taking on multiple new habits."
"This simple app has altered the course of my life. Thank you!"
"Love this application. It has helped me create many new habits. The sister application Task Life is great as well."
✓ If you want To Do list-like functionality see my other app "ToDo Log" which allows for real time recording, repeated and one-off events along with graphs of your past performance. For less than daily tasks check out "Task:Life", for a different approach, based around the idea of what proportion of days you do something.