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Gutli app icon

iPhone appHealthIn development

Gutli

Find the foods that agree with you.

A meal, symptom and low-FODMAP protocol journal for iPhone: log meals and check-ins, follow elimination and reintroduction, and bring a clear report to your clinician.

Coming soonfor iPhone

Noted. Every tap tells us how many people want Gutli on Android.

Support, privacy and terms
Gutli: Program screen
Gutli: Today screen

What it does

Records and patterns, not a diagnosis.

Gutli: Program screen
  1. Elimination, reintroduction and maintenance, with transitions you control.

  2. Meals, symptoms and reintroduction on one timeline and a calendar.

  3. Save meals and recipes you eat often, and find foods in the library.

  4. Meals and symptoms never go to iCloud; an exported backup moves them to a new iPhone.

Outside the app

On your Lock Screen and Home Screen.

Gutli does not wait for you to open it.

Live Activity
The meal you are watching, with the time since you ate.
Widget
Today’s diary, on the Home Screen.
Gutli Live Activity on the Lock Screen
Gutli widget: Today’s diary
Today’s diary

How it works

How Gutli works.

Gutli makes the daily part of a low-FODMAP protocol quick: log what you ate and how you felt, move through elimination and reintroduction when you decide to, and see patterns with their confidence. It records; it does not diagnose.

  1. 1Log

    Meals with portions

    Time, ingredients, grams, notes and an optional photo, with a low/moderate/high portion reference.

  2. 2Check in

    How you feel

    Pain, bloating, nausea, energy and bowel check-ins with the Bristol Stool Chart.

  3. 3Reintroduce

    One group at a time

    Record food, dose, duration and response for each FODMAP group.

  4. 4Report

    For your appointment

    Weekly and monthly summaries and a clinician-ready PDF or CSV.

Your data, plainly

What stays yours.

Gutli keeps your food and symptom journal on your iPhone only and never stores it in iCloud. There is no Lucernel account and no Lucernel server holding your records.

DataWhere it is keptWho can see it
Meals, portions, symptoms, bowel check-ins, protocol phases, reintroduction results, saved meals, photos, reminders and settings that you createYour iPhone only, never iCloudOnly you
Purchase statusApple and RevenueCatLucernel sees the subscription status, never your payment details
Analytics eventsPostHogLucernel, without your records and without your name
Crash reportsPostHogLucernel, to fix the crash
Support emailsLucernel mailboxLucernel
Free tool, no downloadBristol stool chartPick the type that looks most like yours. You see what that type usually means, and the signs that mean you should call a doctor.Open the tool

Frequently asked questions

Is Gutli on the App Store?

Gutli is in development. This page will link to the App Store as soon as it is released.

Does Gutli need an account?

Gutli has no email-and-password account.

How much does Gutli cost?

Gutli Premium is available as a weekly subscription, a yearly subscription or a one-time lifetime purchase. Prices and renewal terms are shown in the app before purchase.

Where does Gutli store my data?

Gutli keeps your food and symptom journal on your iPhone only and never stores it in iCloud. There is no Lucernel account and no Lucernel server holding your records.

How do I get help with Gutli?

Email [email protected] or open the Gutli support page. Privacy and deletion requests go to [email protected].

Gutli

Food and symptom journal for low-FODMAP.

Coming soonfor iPhone

Noted. Every tap tells us how many people want Gutli on Android.