Headspace - Meditation made simple. Brilliant things happen in calm minds.
Habit List - Create good habits and break bad ones with the app that keeps you focused.
Timeless | Meditation - Personal practice meditation timer with guided instruction and multi-day courses.
Micro habits: Self-Improvement app - Super charge your self-improvement journey with Micro habits
Calm - Calm.com can help you reduce stress and increase calm.
HabitCoach - Habits to follow from the best life-changing books.