Habit Streak

Habit Streak helps you achieve your goals (or New Year's Resolutions). Every day the application prompts you to report on your success at completing task(s) the previous day.

This way you build up streaks of habits ingraining the activities into your life.

It's a variant of the technique recommended by Jerry Seinfeld:

"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"

Habit Streak has two key advances on the original technique. Firstly it allows you to build several chains up at once. Secondly it prompts you every day (as long as you set an alarm via the "clock" button) to report on your success (whereas one could easily forget to update or look at a physical calendar).

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. And for less than daily tasks check out "Task:Life", for a different approach. It is based around the idea of what proportion of days you do something.