HabitShare is a habit-tracking app with a twist–users can share habits with their friends, and when the user checks off a habit, all their friends get a notification. I’ve been using this app for about 5 months now, and it has been a huge help. Although there are some additional features I’d like to see to the app itself, I find the core concept very effective, and highly recommend it to anyone who is looking to build some good habits alongside friends.