GutLog
Offline-first bowel health tracker for IBS, IBD, Crohn's, and Colitis.
Your sensitive data stays on your device. No accounts. No cloud. No guessing.
“My doctor asked me to track my symptoms. I was using notes app screenshotsand foggy memory.”
Fast logging
Bristol scale, urgency, pain, and symptoms logged in under 10 seconds. Built for real-life use.
Doctor-ready PDF
Generate professional PDF reports formatted for medical appointments — any date range, any language.
Context tags
Tag logs with Travel, Stress, or Diet Change to find patterns your gut isn't telling you directly.
Visual trends
Calendar views and widget-based analytics that surface changes over time without noise.
CSV export
Back up your entire health history to CSV. Import it back anytime. Your data is portable.
Multi-language
Full support for English, Korean, Chinese, and Spanish — more being added.
Zero data
ever leaves
your phone.
No account required. Open the app and start logging. No email, no password, no profile.
No cloud sync. All data lives in on-device storage. Nothing is transmitted to any server.
No analytics on your health data. Usage analytics collect only crash and performance data — not your logs.
You own your exports. CSV and PDF exports go directly to your Files app — no intermediary.
U.S. App Store–style tiers (verify in-app for your region): Free to download; Pro unlocks analytics and unlimited PDFs.
- Unlimited log entries
- Bristol scale + urgency + pain
- Full calendar history
- Basic PDF report (1 per month)
- Smart reminders
- CSV backup & restore
or $12.99/yr · $24.99 lifetime
- Everything in Free
- Advanced analytics & long-term trends
- Time & color pattern insights
- Unlimited PDF reports (any range, any language)
- Precise entry timing
- Correlation with context tags