Privacy Policy for Headache Logger
Effective date: April 11, 2026
Headache Logger is designed to make headache logging fast and private. The app stores headache entries on your device and captures surrounding context only to help you identify patterns and export that information if you choose to share it.
What Headache Logger Accesses
The app may access the following information when you grant permission:
- Apple Health data such as steps, active energy, basal energy, walking or running distance, exercise minutes, stand time, flights climbed, sleep, heart rate, resting heart rate, HRV, respiratory rate, blood oxygen saturation (SpO₂), VO₂ max, walking speed, environmental audio exposure, mindful minutes, and recent workouts.
- Your current location at the time you log a headache so the app can look up weather, air quality, UV, and pollen-style environmental context.
- Time and date information from your device, such as weekday, hour, minute, time zone, and part of day.
How Your Data Is Used
- To create a detailed local headache entry at the moment you tap the log button.
- To show history and trends inside the app.
- To generate a CSV export only when you choose to export your records.
- To sync a watch-logged headache to your paired iPhone through Apple's device-to-device connectivity framework.
What Stays On Device
Your headache records, HealthKit-derived context, and exported CSV files are created locally on your device. Headache Logger does not require an account, does not upload your log history to a developer-owned server, and does not use analytics or advertising SDKs.
Third-Party Requests
When you allow location access, the app sends your approximate latitude and longitude to Open-Meteo endpoints to retrieve weather and air-quality context. Those requests are made directly from your device. The app stores the resulting context values, such as temperature, AQI, and locality name, rather than storing raw latitude and longitude in the headache record itself.
Sharing
Your data is only shared when you explicitly export a CSV or otherwise use system share features. The developer does not sell your data.
Permissions and Control
- You can deny or revoke Health and Location permissions at any time in iOS Settings.
- If a permission is denied, the app can still log a headache, but the saved context may be partial.
- Deleting the app removes its on-device data from the device where it is installed.
Children and Medical Use
Headache Logger is a personal tracking tool. It is not intended to provide medical advice, diagnosis, or emergency services.
Contact
If you have questions about this policy, contact jackwallner@gmail.com.