Three things every gut diary should get right — and most don't.

A flare-up day is the worst day to fight a clunky app. Log a meal, symptom, or bowel movement in three taps and under ten seconds — with favorites, retroactive logging, and drafts that never lose your entry mid-type.

No account. No cloud. No server that could leak, sell, or subpoena your health history — we never have it. Delete the app and it's gone. That's privacy by architecture, not by promise.

Your data is yours. Every entry you've ever logged exports to CSV, free, forever. Upgrade to Insights and get the Doctor Report — a clean PDF summary built for a 10-minute GI appointment.

Meals, symptoms with severity, Bristol-scale bowel movements, meds, stress, sleep — each in seconds. Sick day? Flag it, and it's excluded from your analysis.
After 14 days of logging, TummyTrail Insights shows which foods most often preceded your symptoms across adjustable time windows — patterns worth discussing, never diagnoses.
Generate the Doctor Report PDF: symptom frequency, Bristol distribution, suspect foods, and your med log — instead of "I think maybe dairy?"
Most health apps promise privacy in a policy. TummyTrail delivers it in the design: everything you log is stored only on your device. There's no sign-up, no sync, no analytics trackers — the only network connection in the app is the one that processes an optional subscription.
Your symptom history physically cannot be breached, sold, or handed over by us. We never have it.
Read the privacy policy →$4.99/month · $29.99/year with 7-day free trial · $79.99 lifetime
Because there are no ads, free users are never nagged mid-log.