Pattern Log: Symptom Tracker

Find out what comes before your symptoms. My Pattern Log is a private symptom tracker, food diary and medication reminder in one. Log a headache, a flare-up or a bad night, and the app looks back at what you ate, drank, took or did in the hours before — and whether that happens more often than usual. The coffee you drink every morning is not a trigger. The red wine that shows up before four of your five migraines might be. A SYMPTOM IN TWO TAPS Your most common symptoms are one-tap chips — on the home screen and on a home-screen widget. Set how bad it is, pick "now" or "an hour ago", done. A MEAL OR DRINK IN THREE A pattern needs both halves: the symptom, and what came before it. Your usual meals, drinks, medicines and activities are one tap each, and one search finds the rest or adds something new. A DAILY CHECK-IN Sleep, mood and stress in a few taps, and one tap for a day with no symptoms — good days are what bad days get compared with. Water, exercise, bowel movements and cycle are there when you want them. MEDICATION REMINDERS Add a medicine with its dose, times and days. Reminders arrive as notifications, and one tap marks it taken and logs it, so medicines sit in your history alongside everything else. Seven-day adherence at a glance. PHOTOS ON ENTRIES Attach a photo to any entry — a rash, a meal, an ingredients label. Photos are kept in the app's private storage on your phone and are never uploaded. PATTERNS, EXPLAINED PLAINLY "Red wine came before Migraine 4 of 5 times, within 12 hours — 3.2x more often than usual." No percentages over 100. No correlations with the things you do every single day. Every pattern shows how many times it was seen, so you can judge it yourself. Until the first one, the home screen shows what it still needs. SEE THE BIGGER PICTURE Symptom-free, mild, moderate and severe days across 4, 8 or 12 weeks. Symptom logs per week. Average severity over time. Your most logged symptoms. A month heatmap in History, with search and filters. A REPORT FOR YOUR APPOINTMENT Turn your symptom diary into a PDF over the period you choose: a day split, a symptom table with average and worst severity, a weekly chart, what came before your symptoms, medicines logged, context averages, and an optional page for the questions you want to ask. Share it before you go in. PRIVATE BY DESIGN A symptom tracker with no account, no sign-up and no server. Your log lives on your phone. Back up to a file whenever you like, restore it on a new phone, and import a CSV export from another diary app. DAILY REMINDER One notification a day, at a time you choose, and tapping it opens the check-in. You decide at the start whether to have it. FREE, WITH ADS Every feature is free — there is nothing to buy. Unlimited logging, history, patterns and charts are always open. Doctor reports longer than 30 days, extra medications and extra photos unlock for 24 hours when you watch one short ad. No ads in your first session, and none while you are logging. WHO IT IS FOR My Pattern Log is built for symptoms that come and go, and for chronic illness where triggers are hard to pin down. Use it as a migraine tracker or headache diary, an IBS and food diary, an allergy, eczema or hives log, a pain diary, or a symptom tracker for endometriosis, fibromyalgia, fatigue or long COVID. My Pattern Log is for keeping track, not for diagnosis. Patterns are based only on what you log and do not prove cause. Talk to a healthcare professional before changing your diet, medication or routine.