BellyMystery
Is it the food? Stop guessing. Start tracking.
Snap a photo of what they ate. Tap to log a stomachache or a stool, each in under 15 seconds. In a few weeks you'll have a plain-language pattern summary and a doctor-ready report, instead of another guess.
Live on iOS and Android.
11:42pm
You know something's wrong. You just can't see the shape of it yet.
You're standing over the sink again, running through everything your kid ate today. The pizza at the party? The yogurt this morning? You don't know. Neither do they. They just want the cramping to stop.
Your pediatrician said to keep a food diary. Easy enough for three days. By week three, exhausted, you can't remember if the bad night came after the strawberries or the week before that. So you guess. You cut dairy, things seem better, you're not sure if that's real or hope. You put it back. Right where you started, still wondering if you're the one missing something obvious.
BellyMystery won't tell you what's wrong. It remembers what you can't, so next time you're in that office, you're not saying "it happens sometimes." You're the parent who showed up with the evidence.
How it works
Four steps. You don't have to remember any of it yourself, that's the whole point.
Log the moment
Snap a photo of what they ate, in under 30 seconds, and BellyMystery reads off the ingredients for you. No typing. Tag a stomachache or a stool on the Bristol scale in under 15 seconds, one-handed if you need to, while you're comforting a kid who feels lousy.
Spot the pattern
Every meal you've logged gets checked against every symptom and stool that followed it, right there on your phone. No cloud database, no spreadsheet, no trying to hold three weeks of dinners in your head.
Read it in plain English
When something stands out, like reactions after 6 of the last 9 dairy meals, BellyMystery says so in plain language, not a wall of numbers. It never tells you what your kid has. It shows you what's worth asking about next.
Bring it to the doctor
Export a PDF with the pattern summary and the full text diary (photos left out), so next time you're not saying "it happens sometimes." Hand it to a pediatrician, dietitian, or anyone else helping you figure this out.
This is the whole thing, start to finish.
One tap to log a meal or a stool, and it's already working toward the report you'll hand your doctor. Swipe through to see exactly what that looks like.
Dietitians and nutritionists we work with.
Bring them your BellyMystery pattern summary and skip the part where you explain everything from scratch.
Clinical Nutritionist & Chef
Emily Gardem
Founder, Emily Gardem Nutrition. Shellharbour, NSW
"Food is powerful medicine."
Emily is a degree-qualified Clinical Nutritionist and chef who has supported hundreds of women and families since 2018, working on hormone balance, digestion, and energy from a calm, food-first approach.
She moves away from quick fixes and restrictive diets in favour of practical, personalised strategies, and welcomes families and kids into the room.
Bring your BellyMystery pattern summary to a session with Emily and she'll help you build a plan that fits real life, not another diet to abandon.
Accredited Practising Dietitian
Stephanie Morris
Stephanie Morris Dietitian. Wollongong, NSW & telehealth. Sees ages 16+.
"Nutrition for mind and body."
Stephanie is an Accredited Practising Dietitian and Accredited Nutritionist with over 10 years of experience. She provides in clinic and telehealth services for chronic disease management, including IBS, IBD, mental health conditions, and invisible illnesses such as ME/CFS, Long Covid, POTS, and fibromyalgia.
Her approach is trauma-informed and non-judgemental, built around adding foods rather than restricting them, especially for people managing chronic illness or fatigue alongside their gut symptoms.
Bring your BellyMystery pattern summary to a session with Stephanie and she'll help you build on it without turning it into another restrictive diet.
Your family's data stays yours.
BellyMystery works without an account. Your diary stays on your device. A meal photo and a computed pattern summary are the only things ever sent off it, and neither is stored afterward. We don't run analytics, ads, or trackers of any kind. Read the full details in our privacy policy.
Questions people ask before they start
The things people usually want to know before they trust an app with this.
How accurately can photo scanning recognize mixed ingredient meals?
The photo doesn't have to be perfect. When you snap a meal, BellyMystery suggests ingredients as removable tags, so you glance at the list, pull off anything wrong, and add anything it missed. That takes a few seconds, and it's what keeps the ingredient log accurate for a plate with six things on it, not the photo recognition on its own.
How does the privacy model work if there's no cloud storage?
Your diary lives on your phone. Only two things ever leave it: the photo of a meal, sent once so ingredients can be read off it, and a computed pattern summary, sent once so it can be explained in plain language. Neither is stored afterward, and there's no account, no analytics, and no ad tracking. Full details are in the privacy policy.
Is the report compatible with general pediatric practices?
The PDF is built to be read by anyone, not a specific system. It leads with a plain-language pattern summary and has the full text diary behind it (photos left out), so a pediatrician, GP, or dietitian can skim the summary in the room and dig into the diary if they want more. You also get a CSV of the full log, so a dietitian who prefers to run their own analysis has the raw data to work with. It doesn't plug into an EMR. It's meant to be handed over, emailed, or printed, the same as any notes you'd bring in yourself.
What age range of children is this app designed for?
There's no age cutoff built into the app. Each profile tracks one person's meals, symptoms, and stools, so it works the same whether you're logging for a toddler, a teenager, or yourself. Most people who reach for it are parents tracking a child's symptoms, but the app doesn't care how old that child is.
Try it free, then one payment, not a subscription.
Log meals, symptoms, and stools free for 2 days, no card required, enough to try logging and see how the analysis works. After that, one payment unlocks the full app for as long as you're figuring this out. No subscription, no monthly fee, nothing to remember to cancel. Even if you decide not to, you can still see everything you've logged and export it for a doctor.