Every gut app asks what you ate. We ask what your day looked like.
Most gut apps turn you into a food logger and hunt for triggers. We start upstream: the light, sleep, meals and stress your gut runs on. No logging. Rituals, not restrictions.
Digestion, gut movement, gut hormones, even your gut bacteria: all of it runs on a 24-hour rhythm, timed by a master clock in your brain. The strongest signal that sets that clock, every single day, is morning light.
Nurses with IBS, by shift pattern
Rotating shifts48%
Day shifts31%
Abdominal pain: 81% against 54%. The gap held however well they slept.
Not known yet: no trial has tested morning light on gut symptoms directly. So we say light sets the clock your gut runs on, never that it fixes your gut.
Light reaching your eyes resets the clock in your brain every morning. A grey day outside is still several times brighter than a lit room.
Strong evidence
2
Your gut runs on that clock.
Digestion, gut movement, gut hormones, the renewal of your gut lining, even the daily swings in your gut bacteria follow its timing.
Strong evidence
3
Meal times keep your gut in step.
Your gut also keeps local clocks, set by when you eat. Regular meals keep them in time with the master clock.
Growing evidence
4
When the clocks drift apart, your gut feels it.
Night shifts, jet lag and bright screens late at night pull them out of step. In nurses on rotating shifts, IBS was far more common.
Growing evidence
Light is our anchor.
It's the first habit on day one, and the rest of the plan keys off the clock it sets: regular meals, an earlier kitchen close, a steady sleep window. Five minutes outside, free, every morning, clouds and all.
The disruptors
Some things knock your gut off. Each one has an opposite.
Your body clock is one of them. A handful of everyday things are reliably hard on the gut. We teach you to spot them, and give each one a habit that does the opposite.
Knocks it off
What we do instead
Evidence it harms the gut
Late nights, bright screens, shifting sleepRotating shift work is linked to more IBS.
Morning light, a steady wake time, dim evenings
Growing evidence
Products instead of foodUltra-processed diets are linked to a higher risk of Crohn's.
Food, not products: mostly whole and minimally processed
Growing evidence
Too little fiberLow-fiber diets go with more constipation.
More plants, added slowly
Strong evidence
Stress with no off switchPeople with anxiety are about twice as likely to develop IBS.
Short daily resets; gut-directed therapy if you have IBS
Growing evidence
Sitting all dayIn a trial, regular exercise eased IBS symptoms.
Moving most days, and a walk after meals
Growing evidence
Eating lateLate dinners are linked to reflux.
The kitchen closes two to three hours before bed
Growing evidence
Short or irregular sleepEnough sleep goes with a lower risk of IBS.
A steady sleep window
Growing evidence
Heavy drinkingDrinking is linked to reflux.
Alcohol-free days
Growing evidence
We also flag, never treat.
Some big disruptors aren't habits. We explain them and what to ask your doctor or pharmacist, and we never change your treatment. All four have strong evidence behind them.
Food poisoningAbout 1 in 10 people have IBS a year after a gut infection.Clean, separate, cook, chill
Antibiotics you didn't needThey reshape gut bacteria; in one study some species were still missing six months later.Only when needed, and exactly as prescribed
Frequent painkillers like ibuprofenHard on the gut lining, and linked to bleeding in the upper gut.Ask your doctor or pharmacist what suits you
SmokingLinked to a higher risk of Crohn's, and to more flares.Support to quit
The tag shows how strong the evidence is that each one is hard on the gut, not that a habit fixes it.
Check. Rituals. Your own numbers.
In the last two weeksHow often have you felt bloated?
RarelySome daysMost days
1
Take the Gut Check
Four minutes. Red flags first, then your symptoms, your days and how you eat. It names the three areas where support would help, and the tests worth considering, never a diagnosis.
Sunrise at 7:09Take a photo of the sky. Clouds count.
Water before coffeeOne glass, room temperature.
2
Follow a few rituals
Three on day one, about seven by week four. Each one is a tap from your lock screen, with its research one tap away.
SampleDay 1Day 30
Bloating
Energy
Sleep
3
See your own numbers
On day 30 you take the Gut Check again. Same questions, your answers, thirty days apart.
Four weeks. Four verbs.
One focus a week, a habit or two at a time, about five minutes a day.
Week 1 · Our anchor
Light
Your gut runs on the same clock as your sleep. Morning light sets it; evening light breaks it.
Strong evidence
Week 2
Clear
Ultra-processed food is the strongest food link to gut disease we have. First we turn the noise down.
Growing evidence
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plants
Week 3
Feed
Then we feed what's left: cooked vegetables, plant variety, a spoonful of ferment.
Growing evidence
Week 4
Calm
Stress and sitting show up in your gut. Small, frequent resets beat one big fix.
Growing evidence
Rest is what the four add up to.
Then the year.
30 days to reset. 3 months to make it stick. A year to make it yours.
Reset, days 1 to 30.
Four rituals to start, a new one each week. Day 30: your before-and-after.
Build, to day 90.
One new layer a week, and the Kitchen opens: 50 recipes and 20 gut adders matched to you. Day 90: the habits that stuck.
Your year, months 4 to 12.
Three seasons, one focus each. December: your gut year.
Every day starts and ends with the sky.
A photo at sunrise gets you outside for the light that sets the clock your gut runs on. A photo at sunset starts the wind-down. Clouds count. Your calendar fills with your real skies, and every full day looks like the logo.
Strong evidenceA grey morning outdoors is still several times brighter than any room.
JanuaryDay 21 of 30
7:08 5:41
7:08 5:42
7:08 5:43
7:08 5:43
7:08 5:44
7:08
7:08 5:46
7:08 5:47
7:08 5:47
7:08 5:48
7:08 5:49
7:09 5:50
7:09
7:09 5:51
7:09 5:52
7:09 5:53
7:09
7:09 5:55
7:09 5:55
7:09 5:56
7:09 5:57
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Honest about what we know.
Every habit, lesson and fact carries one of four labels, with the studies one tap away. We'd rather tell you a habit is Traditional than dress it up.
Strong
Consistent research in people: trials, meta-analyses or clinical guidelines.
Growing
Promising human studies, still being confirmed.
Early
Theory, animal work, or small and mixed human studies.
Traditional
Long use, no trials behind it, and nothing showing harm.
253gut habits reviewed
Every onelabelled with its evidence
Sourcesone tap away
Wednesday, January 67:02
Sunrise at 7:09Take a photo of the sky. Clouds count.
Water before coffeeOne glass, room temperature.
Today's lessonWhy grey mornings still set your clock.
Everything in the membership.
The Gut Check and your plan
Four minutes to a 30-day plan built for your answers, with the why behind every pick.
Lock-screen rituals
Reminders you tick without opening the app, four a day, in the tone you choose.
The sky
Sunrise and sunset check-ins, a light timer that keeps you outside, and a calendar of your real skies.
Mealtime
Five slow breaths, a phone-free timer on your lock screen, and a walk after.
Day close
Thirty seconds each night: how it went, what helped most, one thing for tomorrow.
The library
253 habits and 30 lessons, each with its evidence and its studies.
Your numbers
A day-30 before-and-after, then a re-check every four weeks.
Build and Your year
From day 31, a new layer a week and the Kitchen. From month 4, three seasons with one focus each. Your numbers on day 30, day 90 and in December.
Always free: the Gut Check, your results, the sky check-ins, and every safety feature.
Free to check. A membership to reset.
The Gut Check, your results, the sky check-ins and every safety feature are free, always. The 30 days are the membership.
What's included
Free
Member
The Gut Check and your results
Included
Included
Sunrise and sunset check-ins, the calendar
Included
Included
Red flags, always
Included
Included
Your 30-day plan
Not included
Included
Lock-screen reminders and the widget
Not included
Included
Mealtime: breathe, eat, walk
Not included
Included
253 habits with their research; your own habits
Not included
Included
30 lessons
Not included
Included
Day close and tomorrow's intention
Not included
Included
Day-30 before-and-after and re-checks
Not included
Included
The full journey
$79.99a year
7 days free, then $79.99 for the year (about $1.54 a week). After your first year, stay from $49.99 a year.
7 days free; nothing charged before day 7
Cancel in two taps
The day-30 promise: If your day-30 Gut Check shows no change and you did 20 of the 30 days, you get three more months free, and a pointer to a practitioner.
On the yearly plan nothing is charged before day 7. We remind you on day 5, and a week before your year renews. Cancel in two taps.
Join in January and keep your founding price for as long as you stay.
Questions people ask.
When does it launch?
January 1, 2027, on iPhone. Join the list and we'll email you when it opens.
What does light have to do with my gut?
Your gut runs on a daily clock: digestion, gut movement, gut hormones and even your gut bacteria keep a 24-hour rhythm. Morning light is the strongest signal that sets that clock each day, and regular meal times keep your gut in step with it. That's why light is our anchor. No trial has tested morning light on gut symptoms directly yet, so we say it sets the clock your gut runs on, never that it fixes your gut.
Is this medical advice?
No. Gut Journey is education and habit support. It never diagnoses, never touches your medication, and tells you plainly when something needs a doctor.
Do I have to log my food?
No. There's no food diary and no calorie counting. The food side is one line: food, not products.
How much time does it take?
About five minutes and seven taps a day, mostly from your lock screen.
Is it a diet?
No. No calories, no weigh-ins, no forbidden list. Most of what you eat should be food; a treat any day, eaten slowly, is fine.
What if I have IBS, Crohn's or colitis?
There's a path for each. It adds the right guardrails, keeps you on your treatment, and points you to practitioners who take the time.
What does “rated by its evidence” mean?
Strong, Growing, Early or Traditional on every habit and lesson, with the studies one tap away. Traditional means long use, no trials, and nothing showing harm.
What if it's cloudy, or I can't see the sunrise?
Clouds count. The light outside on a grey morning is still several times brighter than indoors; the timer just asks for a few more minutes. Shift workers get a version keyed to when they wake.
What happens after 30 days?
The yearly plan is a year. From day 31, Build adds a new layer a week and opens the Kitchen. From month 4, Your year runs in three seasons. You see your own numbers on day 30, day 90 and in December. After your first year, keep going on the full plan or step down to a lighter one from $49.99 a year.
What about my privacy?
Photos stay on your phone. Location is used on the device for sunrise and sunset and never sent to us. Analytics never include your answers. Export or delete everything from Settings.
Is there an Android version?
iPhone first. The web app, which works on Android, follows in spring 2027.
Can I cancel?
Any time, in two taps. On the yearly plan nothing is charged before day 7, and we remind you on day 5 and a week before any renewal.
Start with four minutes.
The Gut Check is free and takes four minutes. It won't diagnose you. It will show you where to start.