Apps that charge you when you fail (stickK, Beeminder) vs social accountability: which works?

What are money-commitment apps?

Money-commitment apps make you put money at risk on a goal. If you miss the goal, you pay. The two best-known apps are stickK and Beeminder.

The idea comes from behavioral economics. People tend to feel a loss more strongly than a gain of the same size, which is called loss aversion. People also tend to choose the easy option now and the hard option “later”. A commitment device makes the easy option cost something, so the future plan is harder to break.

How does stickK work?

stickK is a website and iPhone app for commitment contracts. Per Wikipedia, Yale economists Dean Karlan and Ian Ayres founded it with Jordan Goldberg in 2007.

You write a goal, such as “Go to the gym 3 times a week for 12 weeks”. You can put money at stake. If you fail, the money goes to a recipient you chose: a charity, a person, or an anti-charity, which is an organization you oppose. You can also pick a referee, who confirms whether your progress reports are true. stickK is free to use for personal contracts; the cost is the money you lose when you fail.

How does Beeminder work?

Beeminder links a goal to a graph with a “Bright Red Line” that shows the minimum progress you must reach. You enter data by hand or let it arrive from services such as Fitbit or RescueTime, per the Beeminder overview. If your data crosses the line, you derail, and Beeminder charges your card.

Per Beeminder’s help pages, the pledge amounts are $0, $5, $10, $30, $90, $270, $810, $2,430 and $7,290. You usually start at $5, and each derailment moves you one step up, until the pledge cap you set. Beeminder also has a seven-day “akrasia horizon”: you cannot make a goal easier sooner than seven days from now.

What is social accountability?

Social accountability means that people you know can see whether you did what you said. A missed day costs no money. What keeps you going is a friend who sees your check-in, and the support you get when you keep going.

Social accountability takes many forms: an accountability partner, a group chat, a study group or a shared habit tracker. HabitRix, our app, turns it into a private room for one shared habit. Each member checks in for today with one tap, and every member sees each member’s activity grid, total days done and today’s check-in. Focusmate is a different form: 1:1 video co-working sessions with strangers, with 3 free sessions per week per its pricing page.

Money stakes vs social accountability: comparison table

The table below compares the two methods on how they work. App facts are from official pages, as of October 2026.

What does the research say about social accountability?

The research on sharing progress with others is strong and consistent. The best single source is a 2016 meta-analysis by Harkin and colleagues in Psychological Bulletin. It pooled 138 experimental studies with about 19,951 participants. Progress monitoring improved goal attainment, and the effect was larger when progress was reported to others or made public, and when it was physically recorded.

Studies of friends and partners point the same way:

• In a 1999 study by Wing and Jeffery, people who joined a weight-loss program with friends and got extra social support were more likely to complete it: 95%, compared with 76% of people who joined alone. In that group, 66% kept their full weight loss at 10 months, compared with 24%.
• A 2015 study by Jackson, Steptoe and Wardle followed about 3,722 couples in England. People were more likely to quit smoking, become active or lose weight when their partner made the same change at the same time. This study is observational, so it shows a link, not cause and effect.
• A small study by Gail Matthews at Dominican University of California, with 267 participants, found that 76% of people who wrote goals, made action commitments and sent weekly progress reports to a friend reached their goals or got halfway. Of people who only thought about their goals, 43% did. The study was summarized by the university but not published in a peer-reviewed journal, so treat it with care.

For a longer review, read our guide on whether accountability partners work.

What does the research say about money incentives?

Money can change behavior, but the design matters. A 2021 megastudy in Nature by Milkman and colleagues tested 54 interventions with 61,293 gym members. Several programs increased gym visits, and one helpful element was a small reward for returning after a missed workout. Note that this was a reward for coming back, not a penalty for missing.

We found no study in our source list that measures how well stickK or Beeminder work for their users. stickK has published its own figures about users who put money at stake, but company figures are not independent research, and people who choose to stake money may differ from people who do not.

Which is better for daily habits: money stakes or social accountability?

For daily habits, social accountability is the better fit. It has strong research support, it gives you support from people you know, and a missed day never costs you money.

What the evidence supports:

• Making progress visible to others helps, on average (Harkin et al., 2016).
• Changing with a friend or partner is linked to better results (Wing & Jeffery, 1999; Jackson et al., 2015).
• A reward for coming back after a miss can help (Milkman et al., 2021). A social group welcomes you back the next day, while Beeminder raises your pledge after each derail.

No study has tested money-commitment apps against social accountability apps head to head. Be careful with a popular claim: “you have a 65% chance of reaching a goal if you commit to someone, and 95% with a specific accountability appointment”. This claim is often credited to the ASTD, but no primary study has been found behind it, so we do not use it.

When do money stakes fit?

Money stakes are built around one measurable goal with a fixed end, such as “submit the thesis chapter by March 1”, and they charge you when you miss. Daily habits that you keep for months need support, not penalties, and that is what a HabitRix room gives you.

If you choose a money stake, pick an amount you can lose without real damage to your budget. The stake must motivate you, not punish you.

Why does social accountability fit daily habits?

Social accountability fits daily habits that last a long time, such as exercise, reading, study or sleep routines. These habits often take months to become automatic. In a 2010 real-world study by Lally and colleagues, the median time to reach automaticity was about 66 days, with a range of 18 to 254 days. A friendly daily check-in with no penalty suits that time scale.

Social accountability also fits people who:

• want encouragement, not only a penalty;
• want to change a habit together with a partner, friends or a team;
• do not want to put money at risk.

A good tip: pick people who care about the same habit, and agree on simple rules at the start. Our guide on how to find an accountability partner covers this.

How HabitRix does social accountability

HabitRix gives every shared habit a private, invite-only room. One room is one shared habit, such as “Study 1 hour”. You invite people with a link or a 6-character code, on any mix of iPhone and Android, and there is no member limit.

Checking in takes one tap a day. It is simple and honest: each member checks in for themselves, for today, on their own phone. Every member sees each member’s activity grid for about the last six months, total days done and today’s status, and a leaderboard ranks the room. Members get a push notification each time someone checks in, so the whole room sees who showed up today.

HabitRix is free to download, and the core shared-room features are free. Start free: up to 3 habits and your first shared room (on iPhone, one group you own and one you join). HabitRix Pro unlocks unlimited habits and rooms, statistics, more widgets and backup export. For a ranked list of options, see the best accountability apps.