Food · Symptom · Lifestyle diary

Find the foods
behind your symptoms.

Log what you eat and how you feel. mySymptoms quietly does the maths — and shows you the patterns your gut has been hiding.

Free to start · No account needed to log your first day

900,000+
people tracking worldwide
4.7
average app-store rating
Since 2010
built by SkyGazer Labs, Cambridge
50+
symptoms & foods you can log
A diary that does the detective work

Three steps to your triggers

You keep the diary. The correlation engine finds the connections a person could never spot by eye.

Step 01

Log your day

Meals, drinks, symptoms, sleep, stress, medication. A few taps — most entries take seconds with saved foods.

Step 02

Let it correlate

The AI engine weighs every food and habit against every symptom, accounting for delayed reactions of up to 48 hours.

Step 03

Know your triggers

See a ranked list of likely culprits with the strength behind each — and take a clear, evidence-based report to your GP.

Everything in one diary

Built for real digestive detective work

Designed with people managing IBS, IBD, and food intolerances — and refined over more than a decade.

Correlation engine

The core of mySymptoms. It turns months of scattered entries into a ranked shortlist of likely triggers, so you stop guessing.

Fast food logging

A growing library of foods, custom recipes and repeat meals means logging a full day rarely takes more than a minute.

Beyond just food

Track sleep, stress, exercise, bowel movements and medication — because triggers are rarely only what's on the plate.

Elimination diets

Run structured low-FODMAP and elimination protocols with reminders, so you follow them properly and read the results clearly.

Doctor-ready reports

Export a clean PDF of your diary and correlations to share with your GP, dietitian or gastroenterologist.

Your data stays yours

Your diary lives on your device by default. Nothing is sold, and you decide exactly what — if anything — you back up or share.

Evidence, not anecdotes

Walk into your appointment with proof

"It's probably something I ate" is hard to act on. A pattern spotted across 84 days is not. mySymptoms turns your lived experience into the kind of evidence clinicians can actually work with.

HIPAA-compliant telehealthSkyGazer Labs also runs a secure platform connecting patients and clinicians directly.
Bring evidence to your GPExportable reports summarise your triggers, timeline and severity at a glance.
15 years in CambridgePurpose-built for chronic digestive conditions since 2010 — not a repurposed calorie counter.
★★★★★

"After years of dead ends, mySymptoms found it in six weeks. Turns out onion and garlic were the culprits — not the gluten I'd been avoiding for a decade."

Rachel H.Living with IBS · using mySymptoms since 2021

Start your diary today

Your first insight is only a few days of logging away. Free to download on iPhone and Android.

Free to start · Optional in-app upgrade · Loved by 900,000+ people