Beeminder - Beeminder
Way of Life - Habit tracking on iOS
Lifetick - Lifetick is an online Goal Setting application with a stylish, easy to use interface.
HabitHub - HabitHub is a great mobile app that helps you to plan your daily schedule to organize your life.
Habitica - Habitica is a free habit building and productivity application.
Little Big Steps App - Use Little Big Steps to increase effort and discipline for life goals. Mark yourself out of 10 each day and become accountable to yourself!