HomeAppsProductivity21 Days Challenge - Habit AppApps like 21 Days Challenge - Habit App Here are some great alternatives to 21 Days Challenge - Habit App by DeviationApps : Sobriety Tracker - Sober Days ★4.5 Habit Share - HabitRix ★5.0 Habit Eazy - Habit & To Do Pal ★4.2 Habit Tracker - HabitKit ★4.8 Habit - habit tracker and goal ★4.5 Freedom - Bad Habit Tracker ★4.4 Break bad habits & addictions ★4.5 Habit Tracker - Habit Diary ★4.8 Habit Tracker - HabitBox ★4.4 Motivated: Habit Tracker ★4.4 Quit Smoking Tracker-Vape App ★4.3 HelloHabit - Habit Tracker ★4.7 Habit Tracker - Mainspring ★3.8 Habit Tracker - Habit Pixel ★4.9 Productive - Habit tracker ★3.7 Change bad habits - Addictions ★4.6