SymptomLog: Symptom Journal

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.