
Fennly: Food & Symptom Diary
Bloating, IBS & Gut Tracker
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Free
In-App Purchases
About
Bloated after eating and no idea which food is behind it? Fennly is a food and symptom diary that turns your meals into a ranked list of your most likely triggers.
HOW IT WORKS
1. Photograph or describe your meal. Fennly's AI breaks it into ingredients and their likely trigger categories: lactose, fructose, sorbitol, fructans, histamine, gluten, caffeine and more.
2. Log how you feel in seconds: bloating, cramps, fatigue, headache, skin.
3. Read your report. After a few days Fennly ranks your suspected food intolerances, then guides you through an elimination and reintroduction test to confirm them.
FOR BLOATING, IBS AND FOOD INTOLERANCE
Whether you suspect lactose intolerance, fructose malabsorption, histamine intolerance or gluten sensitivity, or you are working through a low FODMAP diet, Fennly does the tedious part for you. No spreadsheets, no guessing, no typing out every ingredient by hand.
WHY FENNLY
- Photo food logging in seconds. Snap the plate and you are done.
- Ingredient level, not just the dish. Fennly knows a pizza is dough, cheese and tomato.
- Fourteen trigger categories, from lactose and gluten to histamine, fructose and caffeine.
- Delayed reactions and the total dose across a day are taken into account, because that is how intolerances actually behave.
- Stress and sleep are factored in, so a bad night does not get blamed on your lunch.
- A guided elimination and reintroduction test with a clear verdict at the end.
- Works offline and syncs when you are back online.
START WITHOUT AN ACCOUNT
Your first meal scans work with no sign up at all. Open the app, photograph a meal, see the full ingredient breakdown.
FENNLY PRO
Unlimited meal scans, the full report with a confidence score per suspect, the guided elimination test and long term management mode. Available as a weekly subscription or a one time lifetime purchase.
PRIVACY
Your data is stored in the EU. Meal photos are only analysed after you explicitly agree. You can export or delete your account and all of your data at any time.
IMPORTANT
Fennly gives you hints and suspected triggers, not a medical diagnosis, and does not replace professional medical advice. Always confirm a suspected intolerance with a test and talk to your doctor.
Terms of Use (EULA): https://fennly.app/terms
Privacy Policy: https://fennly.app/privacy
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What's New in Fennly
1.0.3
August 11, 2026
Performance and stability improvements.
Subscription plans
Fennly Pro Weekly
Unlimited meal scans and your full trigger report.
$3.997 Days
2
In-App Purchases
$49.99
Fennly Pro Lifetime
One-time purchase. Fennly Pro forever, no subscription.




