Purp - A smart to-do list and goal tracker app
Habitica - Habitica is a free habit building and productivity application.
Things - Things is an easy to use task manager.
Coach.me - Coach.me is a coach that goes everywhere with you, helping you achieve any goal, change any habit, or build any expertise.
Nirow - Habit tracking: Automated, Siri-ed, Calendar-ed, and More!
Loop Habit Tracker - Loop Habit Tracker (AKA uhabits) helps to create and maintain good habits in order to achieve their...