Rumbelly

Know what's bloating you — before you eat it.

Snap a photo of any meal. Rumbelly spots the hidden triggers a barcode can't see — the onion in the sauce, the garlic in the dressing — the FODMAPs that quietly cause bloating and gas, and learns which ones are yours.

Based on the low-FODMAP approach developed at Monash UniversityNo ads, everPhotos analysed, never stored by us

Rumbelly app showing your personal top triggers
Rumbelly result: this meal is High — onion and garlic flagged as hidden triggers

Why you can trust Rumbelly

Grounded in real science

Rumbelly is based on the low-FODMAP approach developed by researchers at Monash University. Food verdicts explain their gas driver in plain language.

Independent, by design

No ads. No food-industry money. Rumbelly is independent, and not affiliated with or endorsed by Monash University.

Your gut, your data

No account needed. Meal photos are analysed and we never store them. Export or delete everything, any time.

Rumbelly helps you spot the foods behind excess gas and bloating. It's an educational tool, not a substitute for medical advice.

Snap. Check. Tap. Learn.

Rumbelly camera scanning a plate of food
1

Snap your meal

Point your camera at the plate. The AI reads the dish — not a barcode — so sauces, dressings and toppings count.

Rumbelly meal result: High 5/6 with onion and garlic flagged
2

Get the verdict

Seconds later: a gauge for the whole meal and every ingredient rated — with the hidden triggers called out by name.

Rumbelly Today screen with one-tap gas counter
3

Tap when it rumbles

One tap logs a gas moment. A few days of taps builds your personal baseline — no diary writing.

Rumbelly Top triggers screen ranking fructans and lactose
4

See your triggers

Rumbelly correlates what you ate with how your gut answered, and ranks your likely triggers — fructans, lactose, and friends.

Try it on tonight's dinner.

Download on theApp StoreGet it onGoogle Play

Built for the meals you actually eat

Only in Rumbelly

Eating out? Scan the menu.

Point your camera at any restaurant menu and get the safest dishes first — in any language. No other gut app does this.

Rumbelly camera pointed at a restaurant menu
Rumbelly Menu check: dishes ranked, gentlest first

121-food library

Every food, explained

Traffic-light verdicts for 121 everyday foods — each one explains its gas driver, so you learn the pattern instead of memorising lists.

Every food, explained

Trends & stats

Watch your baseline move

Thirty-day trends show whether your gut is actually calming down — evidence, not vibes.

Watch your baseline move

Private by default

No account. No cloud diary.

Your history lives on your device. Sign-in is optional and only exists to back up your own data.

The two rules of gut triggers

1

It's not the food you see

Most gas comes from a handful of fermentable carbs — called FODMAPs — that hide inside sauces, dressings and stocks. The pasta is innocent; the garlic oil isn't.

What you seeWhat actually ferments
2

It's personal

The same meal wrecks one gut and leaves another untouched. Lists can't tell you which group is yours — only your own data can.

This gut reactsThis one doesn't

Rumbelly is built around both rules: the scanner reasons about hidden ingredients, and the tracker correlates them with your gut's actual answer.

Find out which ones are yours.

Download on theApp StoreGet it onGoogle Play

What triggers you?

Do meals with onion or garlic upset your gut?

Why I built this

Hi — I'm Erik. I've spent years playing detective with my own gut: bloated after some dinners but not others, evenings ruined by something I couldn't name. I tried the low-FODMAP lists. They work fine in a supermarket aisle — and fall apart the moment food is cooked, sauced, or ordered at a restaurant.

I've been building mobile apps for over a decade, so I built the tool I couldn't find: one that looks at the actual plate in front of me, flags what's likely to rumble, and then checks those suspicions against what my gut really says. Family dinners here in Switzerland have been the test lab.

No investors, no food-industry money — just someone who wanted quieter evenings. I hope it brings you some too.

Erik — maker of Rumbelly

Why not just… a food diary?

CapabilityPaper diaryBarcode appsCalorie trackersRumbelly
Sees hidden ingredients in cooked meals✕✕✕✓
Learns YOUR personal triggers~✕✕✓
Built specifically for gas & bloating~✕✕✓
Effort per mealHighMediumHighOne photo

Questions, answered

What is a FODMAP?

FODMAPs are short-chain carbohydrates — fructans, lactose, excess fructose, polyols — that some guts struggle to absorb. They ferment in the large intestine, producing gas and bloating. The low-FODMAP approach was developed by researchers at Monash University.

Does Rumbelly diagnose IBS or food intolerances?

No. Rumbelly is an educational tool that helps you spot patterns between what you eat and how your gut responds. It is not a medical device and no substitute for a doctor or dietitian — bring your data to them instead.

How does the meal scan work?

You take a photo, and an AI model identifies the dish and its likely ingredients — including hidden triggers like onion, garlic or cream that a barcode scanner can't see. We never store the photo; our AI provider (Google) may keep it briefly for abuse monitoring under its API terms.

Is Rumbelly free?

Yes — scanning, logging and the food library are free. Deeper personal insights will be part of an optional premium upgrade.

How do I get Rumbelly?

Rumbelly is available now, free, on the App Store and Google Play. Tap either badge anywhere on this page to download it.

Is my data private?

Yes. No account is required, your history stays on your device, and meal photos are analysed and never stored by us. You can export or delete everything at any time.

Give your belly a voice.

Rumbelly is coming to iOS and Android.

Download on theApp StoreGet it onGoogle Play