Habit Streak is an Android app developed by Complex View Ltd that helps you achieve your goals by building streaks of habits. With over a quarter of a million users, it is perfect for those who want to kickstart their New Year's resolutions in exercise, diet, or other areas of their life. The app allows you to report on your success every day, building up streaks of habits and ingraining the activities into your life.

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 prompts you every day to report on your success, avoiding the possibility of forgetting to update or look at a physical calendar. The app is simple, clear, and easy to use, and best of all, it is completely free. However, there is a Pro version available for power users who want additional features.