IBS Tracker: Fenlo Food Diary

Fenlo is an IBS diary for food, gut symptoms and bowel movements that shows, from your own entries, which foods stand out for you. Log what you ate and how your belly feels in a few taps, and after a few days Fenlo compares every food with your symptoms. A simple food symptom tracker you will actually keep using.

Logging takes three taps at most:
• Meal: tap your foods (the ones you eat most come first), search or add your own, save. Time defaults to "now" and can be changed afterwards.
• Symptom: pick type and strength, e.g. bloating, abdominal pain, cramps, gas, urgency, nausea, heartburn, feeling full or tiredness.
• Bowel movement: tap the type on the Bristol stool chart (1 to 7), plus urgency and blood. A simple bowel movement tracker, no typing needed.
• Daily factors: stress, poor sleep, period. Also medication and notes.

What Fenlo finds for you:
For every meal the app checks whether symptoms followed within the time window you choose (default 1 to 12 hours) and compares how often that happens with and without a food. Small numbers are pulled toward your own average, so two coincidences never make a trigger. Every suspect comes with its evidence: the meals that were followed by symptoms. "Why?" shows the full calculation. Everything is calculated on your phone.

Always included, no expiry date:
• log unlimited meals, symptoms, stools, daily factors and medication
• journal of the last 7 days
• your suspect no. 1 fully visible, with numbers and evidence
• backup file for a new phone
• no account, no ads

Fenlo Pro for the whole picture:
• the full ranking of suspect foods
• foods that have not been followed by symptoms so far
• groups (e.g. dairy) and daily factors such as stress, sleep and period
• stool overview of the last 14 days on the Bristol chart
• Retest: leave a suspect out for 3 days, eat it on day 4, watch for 2 days, with a reminder on test day
• doctor PDF with patterns, symptoms, stool and full log for your appointment
• complete journal and adjustable time window
Monthly or yearly. The yearly plan starts with a free trial, and the app reminds you one day before the trial ends. Cancel any time in Google Play.

Made for: anyone with irritable bowel syndrome or a suspected food intolerance (for example lactose, fructose or gluten) who wants to put their observations in order before a doctor visit or during a guided low-FODMAP diet. Fenlo is a diary and analysis app only: Fenlo contains no FODMAP content tables. Groups describe types of food, not measured values; your own pattern is what counts. As a gut health tracker it works with what you enter, nothing else.

Important: Fenlo is not a medical device and does not diagnose. It shows frequencies in your own entries, and no pattern is proof. It does not replace medical advice. Irritable bowel syndrome is diagnosed by a doctor after other causes are ruled out. Have warning signs such as blood in the stool, unintended weight loss, symptoms that wake you at night or fever checked by a doctor, and do not cut foods out for good without discussing it first.

Sources (Fenlo is not affiliated with any authority or professional society):
• NICE CG61, Irritable bowel syndrome in adults: https://www.nice.org.uk/guidance/cg61
• German S3 guideline on irritable bowel syndrome, DGVS (AWMF 021-016): https://register.awmf.org/de/leitlinien/detail/021-016
• IQWiG, gesundheitsinformation.de (German): https://www.gesundheitsinformation.de/reizdarmsyndrom.html
• Bristol stool scale, Lewis & Heaton 1997: https://pubmed.ncbi.nlm.nih.gov/9299672/

Privacy: your entries are health data and stay on your device. No account, no ads, no third-party SDKs. Only the purchase and anonymous counters without device ID go online.

Questions or ideas: [email protected]