Nomie - Open-source mood and life tracking

Bit : Habit Tracker - Bit : Habit Tracker is a digital habit tracking app that comes up with features to help you in keeping track of a large number of habits on the basis of their categories.

Journalistic - A simple, yet powerful micro journaling app

Habitica - Habitica is a free habit building and productivity application.

Journal - Organize all your ideas

Habit Rabbit - Habit Rabbit app allows users to create life goals so they can track their goals and get things done by using small habits.