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Accountability and habit guides

DuoShare is a free accountability habit tracker for iPhone. You and a friend (or a group of up to 4) check off daily goals, see when each other is done, keep your streaks alive, and take on 7, 30 or 66-day challenges together.

Accountability apps

The accountability app for habits that actually stickAn accountability app pairs your goals with a real person who sees whether you showed up. Here is what to look for, and why DuoShare is built around it.An accountability partner app for two people who mean itDuoShare is an accountability partner app for iPhone. Share goals with one person, see each other check in, and keep a streak alive together. Free.The accountability app you use with your friendsLooking for an accountability app with friends? DuoShare lets friends share goals, see who is done today, and take on challenges together. Free on iPhone.An accountability buddy app, and how to pick the right buddyAn accountability buddy app makes it easy to check in with a buddy every day. DuoShare pairs you with your buddy, with streaks, nudges and challenges.The accountability habit trackerAn accountability habit tracker combines daily habit tracking with a real person who sees your progress. DuoShare is free on iPhone.Why your habit tracker stopped working, and the fixMost people quit habit trackers within weeks. Adding accountability to another person is the fix. Here is why, and how DuoShare builds it in.

Habit tracking with friends

A habit tracker with friends built in, not bolted onDuoShare is a habit tracker with friends built in. Share habits, see who checked in today, and keep shared streaks alive. Free on iPhone.A shared habit tracker for doing the same habit togetherA shared habit tracker lets two or more people track the same habit together. DuoShare shows both streaks side by side. Free on iPhone.A social habit tracker that is never publicA social habit tracker without the public feed. DuoShare shares your habits only with friends you choose, with reactions, photos and shared streaks.A streak app you keep alive with your friendsDuoShare is a streak app with friends: every day you check in, your streak grows, and your friends see it. With N/A days, a widget and share cards.A group habit tracker for friends, families and teamsA group habit tracker for friends, roommates, families and teams. DuoShare groups of up to 4 are free; Pro adds groups of 5 to 10.A habit tracker for couples who want to build habits togetherA habit tracker for couples: share goals with your partner, see each other check in, and build habits as a team. DuoShare is free on iPhone.A couples goal app, plus 30 goals to try togetherA couples goal app to set and track goals with your partner, plus 30 goal ideas for couples: health, money, home and relationship.

Challenges

A habit challenge app you start with one linkStart a habit challenge with friends in one link. DuoShare runs 7, 30 and 66-day challenges with daily targets, start cards and finish cards. Free.The 66-day habit challengeWhy 66 days? The research behind the 66-day habit challenge, a day-by-day plan, and a free app to do it with a friend.A 30-day challenge app you do with friendsStart a 30-day challenge with friends: fitness, reading, water, sleep and more. DuoShare tracks everyone daily. Free on iPhone.The 7-day challenge: the easiest way to startSeven-day challenge ideas for habits, fitness and focus, and a free app to run a 7-day challenge with a friend.A 75 Hard alternative you can do with friendsLooking for a 75 Hard alternative? A 66-day challenge with a friend is built on habit research, forgives one slip a week, and is free on DuoShare.A New Year’s resolution app that gets you past FebruaryMost resolutions are dropped within weeks. A New Year’s resolution app with a friend and daily check-ins changes that. DuoShare is free on iPhone.

Goals and routines

A fitness accountability app for people who skip workouts aloneA fitness accountability app where a friend sees your workouts. DuoShare shares workouts and steps with friends, with streaks and challenges. Free.A workout buddy app for you and your gym partnerA workout buddy app to keep you and your gym partner consistent: shared workout goals, photo check-ins, nudges and streaks. Free on iPhone.A weight loss accountability partner, and the habits to shareA weight loss accountability partner makes you more likely to stick with it. The research, daily habits to share, and a free app to do it together.A study accountability app for you and your study buddyA study accountability app for students: share study goals with a friend, use a focus timer, and keep a study streak alive. Free on iPhone.A reading challenge app for reading every day with friendsA reading challenge app to read every day with friends: 10 pages a day, 30 or 66-day challenges, and a shared reading streak. Free on iPhone.A morning routine app that a friend keeps you honest onA morning routine app to build a routine that lasts: small daily habits, a friend who sees you check in, and a streak. Free on iPhone.A goal tracker app that turns goals into daily check-insA goal tracker app that turns big goals into daily check-ins you share with a friend. DuoShare is free on iPhone.A daily habit tracker that takes one tapA daily habit tracker that takes one tap: check off today’s goals, see your friends’ progress, and keep your streak. Free on iPhone.

The app

A free habit tracker that includes your friendsDuoShare is a free habit tracker for iPhone: unlimited goals, friends, streaks, reminders, a widget and challenges with up to 4 people.A habit tracker built for iPhone, with friendsDuoShare is a habit tracker built for iPhone: Home Screen widget, smart reminders, Apple Health (optional), share cards and friends. Free.A habit tracker widget that keeps score on your Home ScreenDuoShare’s Home Screen widget shows your streak so you see it every time you unlock your iPhone. Free habit tracker with friends.

Comparisons

The best accountability apps in 2026The best accountability apps in 2026, by type: with friends (DuoShare, HabitShare), money on the line (Beeminder, stickK), coworking (Focusmate) and games (Habitica).The best habit tracker apps in 2026The best habit tracker apps in 2026: DuoShare for friends, Streaks for solo iPhone tracking, Habitica for games, HabitShare, Habitify and Loop.DuoShare vs HabitShareDuoShare vs HabitShare compared: shared streaks, challenges, nudges, share cards, platforms and price. Looking for a HabitShare alternative? Start here.DuoShare vs HabiticaDuoShare vs Habitica: real-friend accountability and streaks versus a role-playing habit game. Which one fits you, and a Habitica alternative.DuoShare vs StreaksDuoShare vs Streaks for iPhone: a polished solo tracker versus a habit tracker built around friends. Which to choose, and a Streaks alternative with friends.DuoShare vs BeeminderDuoShare vs Beeminder: accountability from a friend versus paying when you go off track. Which motivates you more, and how they differ.DuoShare vs stickKDuoShare vs stickK: daily accountability with friends versus a commitment contract with a referee and optional money.

Partners and research

How to find an accountability partnerWhere to find an accountability partner, how to ask, a message you can copy, and how to set it up so it lasts.How to be a good accountability partnerHow to be a good accountability partner: check in daily, celebrate wins, nudge without nagging, and set clear goals. Nine rules that work.Accountability statistics: what the research actually saysAccountability and habit statistics with sources: 76% vs 43% goal achievement, 66 days to form a habit, social support and weight loss, and the 95% myth.How long does it take to form a habit?It takes a median of 66 days to form a habit, according to a UCL study, with a range of 18 to 254 days. Here is what the research says and how to speed it up.

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

  1. Get DuoShare free on the App Store and sign up with your phone number.
  2. Add one to three small goals. Small sticks.
  3. Send a friend your invite link. Your streak starts with your first check-in.
Get DuoShare, free on iPhone

iPhone · Free · No ads