A habit challenge app you start with one link
A habit challenge app gives a habit a start date, a finish line and people doing it with you. On DuoShare you pick a habit and 7, 30 or 66 days, send the link to friends, and the challenge starts when people are in. Everyone sees who is done each day, and everyone gets a card to share at the start and the finish.
Pick the right length
- 7 days: a quick test run. Great for trying a new habit or getting a hesitant friend to join.
- 30 days: real momentum. Long enough to feel a difference.
- 66 days: the median time it took for habits to become automatic in Lally’s 2010 study. The full reset.
20 challenge ideas
- 10,000 steps
- Read 10 pages
- No phone in bed
- Drink water before coffee
- Gym 3 times a week
- Run 20 minutes
- Meditate 10 minutes
- Journal one line
- Lights out by 11
- No sugar after dinner
- Cold shower
- Study 45 minutes
- Practice an instrument
- Duolingo-style language practice
- Stretch 10 minutes
- Cook at home
- No social media before noon
- Walk outside
- Pushups every day
- Write 300 words
How a DuoShare challenge runs
- Choose a habit and an optional daily target (pages, minutes, km).
- Choose 7, 30 or 66 days, and hold the bar to commit.
- Share the link. Up to 4 people free, 5 to 10 with Pro.
- Check in every day. Everyone sees who is done.
- Finish together and share the finish card.
DuoShare at a glance
- What it is
- An accountability habit tracker for iPhone: you and your friends check off goals and see when each other is done.
- Price
- Free. Goals, friends, streaks, reminders, the widget and challenges with up to 4 people cost nothing.
- DuoShare Pro
- Optional: groups and challenges of 5 to 10 people. $29.99 once, or $4.99 a month.
- Platform
- iPhone (iOS). No Android or web app yet.
- Challenges
- 7, 30 or 66 days, with one friend or a group, joined with one link.
- Streaks
- Your streak grows every day you check off a goal. Mark a goal N/A once a week without breaking it.
- Sharing
- Every milestone becomes a card you can post to Instagram, Messages or anywhere.
- Privacy
- Goals are private until you share them with friends you choose. Nothing is public. Your journal is never shared.
- Languages
- English and Spanish.
- Made by
- SearchWrite LLC, United States.
Start in under a minute
- Get DuoShare free on the App Store and sign up with your phone number.
- Add one to three small goals. Small sticks.
- Send a friend your invite link. Your streak starts with your first check-in.
iPhone · Free · No ads
Questions
What is the best app for habit challenges with friends?
DuoShare is built for it: one link to join, 7, 30 or 66-day lengths, daily targets, and shareable start and finish cards. It is free on iPhone for up to 4 people.
What happens if I miss a day in a challenge?
Your challenge progress shows the day as missed, but you keep going. Your overall streak can be protected by marking a goal N/A once a week.
Can I do a challenge alone?
Yes. You can start one solo and invite people any time.
How do friends join?
Send the challenge link. They install DuoShare, tap the link and join.