SymptomLog: Symptom Journal

What if tracking your health didn't cost you a subscription every month?

SymptomLog is the symptom tracker built for people with chronic illness — one fair price, no subscriptions, no ads, no account required. Track symptoms, medications, and triggers in one private journal, then generate doctor-ready PDF reports for your next appointment.

YOUR DATA STAYS YOURS • All data stored locally on your device with optional iCloud sync • No account creation, no external servers, no data selling • Works fully offline — your health data never leaves your device unless you choose to share it

SYMPTOM TRACKING MADE SIMPLE • Quick-log symptoms with severity (1-5), timestamps, and notes • Attach photos for visible symptoms like rashes or swelling • Customizable symptom library — add your own beyond the presets • Preset symptoms include pain, fatigue, nausea, headache, brain fog, dizziness, joint pain, and insomnia

MEDICATION MANAGEMENT • Track medications with dosage, frequency, and schedule • Receive local notification reminders for each medication • Log when medication was actually taken, not just scheduled • Monitor missed doses and adherence over time

TRIGGER IDENTIFICATION • Log potential triggers: food, weather, stress, sleep quality, activity level • Organize triggers into customizable categories • Add free-text notes to capture context around each trigger

PATTERN DETECTION & INSIGHT • Timeline view showing symptoms alongside medication and trigger data • Smart correlation detection: discover patterns like "Headache occur 73% of the time after trigger X" • Filter by date range, symptom type, or severity level • HealthKit integration for sleep, heart rate, and step data correlation

DOCTOR-READY PDF REPORT • Generate clean, professional PDF report with symptom frequency chart, severity trend, medication adherence summary, and trigger correlation • Select any date range for focused reporting • Share via email, AirDrop, or print directly from the app • Export to markdown for LLM analysis or CSV for spreadsheet use

HOME SCREEN WIDGET • Home screen widget for one-tap symptom logging and daily summary

Built by someone who understands that people managing chronic illness already face enormous cost. SymptomLog is a one-time purchase — because your health tracker shouldn't be another monthly bill.