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

To-Do Calendar Planner - To-Do Calendar Planner app comes up with a scrollable calendar to enable users to accomplish all your study and other daily life tasks while saving some extra time for other activities.

LifeRPG - Automatically prioritize your goals and gain XP for achieving them. Features:

Bright To-Do - Bright To-Do app helps users in achieving their life goals by simply creating checklists to keep a check and balance on their daily routine.

Hapit - Hapit is a habit tracking app that helps you take your procrastination state and convert it into actual habits.

Focus To-Do - Be focused and make things easier.