Gutline: IBS & FODMAP Diary
Symptom, stool & trigger log
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
A private diary for IBS and a low-FODMAP diet. Log symptoms, stool and food in ten seconds, then hand your doctor a clear report. No account, no ads, no tracking.
Gutline is a private diary for people managing IBS and following a low-FODMAP diet. It takes about ten seconds a day, and it turns your record into a report you can hand to a doctor.
WHAT YOU LOG
- Overall severity, 0 to 10
- The Bristol stool scale, with an explicit "not recorded"
- Eight symptoms (bloating, pain, gas, urgency, fatigue, nausea, constipation, diarrhea), each mild, moderate or severe, plus symptoms of your own
- Medication taken, urgency and blood, if they apply
- The triggers you choose, plus your own typed tags
- Meals, drinks and habits, with a reaction check afterwards: none, mild, moderate or strong
- Your medication and therapy plan, ticked off each day
- A photo on any entry
WHAT YOU GET BACK
- Today at a glance: severity, stool, symptoms, medication and food in one view
- "Same as last" for a steady day: one tap copies your previous entry
- History grouped by day and searchable
- Patterns: severity over time, stool types, symptom averages and the tags you use most
- Highlights: plain sentences of fact from your own entries
- What tends to travel with your worse days, from your own record
- Your days with and without each item on your plan, side by side
- What you recorded after each meal, drink or habit
- A day by day view of severity and stool
- A clear PDF report for your next appointment, and a CSV export
PRIVATE BY DESIGN
- No account, no sign in, no server
- Your diary stays on your iPhone and leaves only when you export it
- Face ID lock, if you want it
- No ads and no tracking
GUTLINE PRO
Gutline is a subscription. Gutline Pro includes unlimited entries, 14 and 30 day patterns, the tag comparison, the PDF report and the CSV export, the photo log, the Face ID lock and a daily reminder. Any free trial on offer is shown before you subscribe. If you stop subscribing, everything you logged stays readable on your iPhone.
Gutline records what you enter. It is not a medical device and it does not give medical advice. Talk to your clinician about your symptoms.
Gutline Pro is an auto-renewable subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://mk-sd.com/en/gutline/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Gutline now opens with Gutline Pro, and any free trial on offer is shown before you subscribe. If you already use Gutline, your diary and your full history stay as they are. Listing and translations improved.
The developer, Maximilian Kuchlbauer, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Maximilian Kuchlbauer
- Size
- 6.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 32 more
- English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Gutline Pro Weekly $2.99
- Gutline Pro Monthly $4.99
- Gutline Pro Yearly $29.99
- Copyright
- © 2026 Maximilian Kuchlbauer