Fast your bad habits away.
Doomscrolling. Vaping. 2 a.m. snacks. Habifast puts them on a clock instead of a guilt trip — start a fast, stack a streak, and let the AI coach do the nagging.
On iPhone? Use the web app at habifast.app
72 HXThree steps. No shame spiral.
Add it as a bad habit with an emoji, a schedule and a reminder. Good habits and counters work the same way.
Pick a preset from 16:8 up to 72 hours, or set your own end time. The timer keeps running overnight — midnight doesn't reset you.
Every hour held out pays points — even a partial fast counts. Miss a day and vacation mode or a streak shield keeps the fire alive.
Every fast has milestones. The app walks you through them.
As the clock runs, Habifast shows where you are and sends a notification the moment you reach the next milestone.
You chose to pause the habit. That's the hardest step, and it's done.
The first urges show up. Notice them, don't act on them. Each one you let pass is practice.
Urges come and go. The skill isn't making them disappear. It's letting one be there without acting on it.
Notice what you're doing with the time and attention you just got back.
Make an if-then plan: “If I reach for my phone, then I go for a walk.” Water instead of a snack works too.
You're showing yourself that you run the habit, not the other way round.
Sixteen hours. One more successful pause in your history.
A whole day without it. The next cycle starts from here.
Where this comes from
“Urge surfing” means watching a craving without acting on it. In a small trial, smokers who learned it didn't feel weaker urges, but they smoked fewer cigarettes over the next week.Bowen & Marlatt, 2009
Replacing a habit with an incompatible action is the core of habit reversal training, which works well for habits like nail biting. If-then plans also help people stick to their goals.Bate et al., 2011 · Gollwitzer & Sheeran, 2006
The “21 days” figure is a myth. In a UCL study, new habits took a median of 66 days to become automatic (range 18–254), and missing a single day didn't derail the process.Lally et al., 2010
“Dopamine fasting” doesn't lower dopamine. Even the psychologist who coined the term says it's about pausing impulsive behaviour, not the chemical. That's what Habifast helps you do.Sepah, 2019
Habifast supports habit change. It is not a treatment. If you're dealing with an addiction, please talk to a professional.
Everything you need to break a habit — and nothing else.
Presets from 16:8 to 72 h, custom durations, fixed end times and partial points for partial wins.
Daily goals with real units — litres, pages, reps — plus per-weekday schedules and “up next today”.
Chat with a coach that has your streak, fasts and misses in front of it. Straight answers, no horoscope.
Your streak counts on any real use of the app. Going away? Vacation mode protects it. Bad day? Spend a shield.
Fast timer, active timer and a daily overview widget — check in without opening the app.
Block the apps that set you off while a fast is running. The block screen tells you how long you've got left.
The whole app, no surprises
Five tabs, one bottom bar, everything two taps away. Light and dark theme, both shipping.
Bad habits, good habits and counters — each with its own schedule.
A month at a glance with the week schedule underneath. Tap any day to fix your history.
Spend points on streak shields, vacation mode and second chances.
Streak, points, shields, reminders, theme and language in one place.
Quit in nine languages
Habifast follows your phone's language automatically — every screen, every notification, every coach reply. Switch it by hand any time in Profile.
Nagging, but only when it counts
Habifast does not spam you at 9 a.m. with a list. It pings when a fast is about to start, when you cross a phase, and when a streak is on the line — and stays quiet the rest of the day.
Start free. Upgrade when the free plan starts annoying you.
Pro pricing is shown in the app. No account needed to start.
Questions before you quit something
What does “fasting” mean here? +
Not just food. A fast is any window in which you avoid something — sugar, nicotine, social media, alcohol, gaming. You set the duration and the end time; Habifast runs the clock and pays out points for the hours you hold.
Is Habifast free? +
Yes. The free plan covers 5 habits, one active timer, 30 days of history, one AI coach question a day and App Guard for one app. Pro lifts every limit: unlimited habits and timers, the 365-day analysis, the unlimited AI coach, multiple fasting plans and App Guard for every app.
Where does my data live? +
Your habits, timers and points are stored locally on your device. Only what you send to the AI coach leaves your phone, through our own proxy. Details are in the privacy policy.
Is there an iPhone version? +
Not in the App Store yet, but Habifast already runs on iPhone: open habifast.app in Safari and add it to your home screen. Home-screen widgets and App Guard need the Android app. A native iOS version is on the roadmap.
Which languages? +
Nine: German, English, Spanish, French, Portuguese, Italian, Chinese, Japanese and Korean. The app follows your phone's language automatically, and you can override it in Profile.
