Timebug - Productivity & life management app to guide self discovery
Beeminder - Beeminder
Habit Challenge - Habit Challenge is an elegant mobile app that helps you to create new daily routines and keep you on track.
GoalsWon - Human accountability coaching for busy people
Youtine - Develop self-discipline, without using an app.
Coach.me - Coach.me is a coach that goes everywhere with you, helping you achieve any goal, change any habit, or build any expertise.