Log it in one tap

Press once when a headache starts. The app records the moment and fills in Health, weather, and environmental context automatically.

iPhone · Apple Watch · Widgets

Download on the App Store
Headache Logger on iPhone: main screen with Log headache button, latest event summary, and recent logs.
Headache Logger History on iPhone: summary stats and list of past entries with context.
Headache Logger on Apple Watch: Log headache button on the main screen.

Built to do one thing well

Every tap captures what was happening around you.

Health

Apple Health context

Steps, sleep, heart rate, HRV, SpO₂, VO₂ max, audio exposure, mindful minutes, and recent workouts — captured automatically.

Weather

Environment snapshot

Temperature, barometric pressure, humidity, air quality, UV index, and pollen levels at the moment you log.

Time

Temporal patterns

Weekday, hour, part of day, time since last sleep, and timezone — to help spot recurring triggers.

Export

Doctor-friendly CSV

Share your full history with 60+ columns of context via email, AirDrop, or any share destination.

Apple Watch

Log from your wrist

One-tap logging on Apple Watch with Health and weather context. Events queue and sync to your iPhone.

Widget

Home screen shortcut

A small widget for instant logging. The app enriches the entry with full context when you next open it.

Private by design

Headache Logger stores everything on your device. No accounts, no analytics, no ads, no cloud sync. Location is used only to fetch local weather from Open-Meteo — raw coordinates are never stored. Your data is only shared when you explicitly export it.

Privacy Policy →

Now on the App Store

Headache Logger is approved and live. Free with no account required.

Download on the App Store