Habits - Habits is an Android app that I wrote to help me work towards my goals by turning them in to habits.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Coach.me - Coach.me is a coach that goes everywhere with you, helping you achieve any goal, change any habit, or build any expertise.
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
42goals - 42goals is a simple tool for tracking your daily goals and keeping a log of your daily activities.
EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.