Last updated: February 2026
Use this app to track migraines. Don't use it as a substitute for medical advice. I built it in good faith and maintain it as best I can, but I'm one person.
Migraine Logger is licensed to you for personal use on Apple devices you own or control, subject to the Apple Media Services Terms and Conditions. You may not distribute, reverse-engineer, or resell the app.
Migraine Logger is a personal logging tool. It is not a medical device, and nothing in the app constitutes medical advice, diagnosis, or treatment. If you're concerned about your health, talk to a doctor. The logs you create may be useful to share with a healthcare provider, but that's your call to make, not mine.
The Export feature is available as a one-time in-app purchase. If you've purchased it, it's yours — no subscriptions, no expiry. If you need to restore a previous purchase on a new device, use the "Restore Purchase" option in Settings. Refund requests go through Apple.
The app is provided as-is. I test it carefully, but I can't guarantee it will work perfectly in every situation, and I'm not liable for data loss or other issues that may arise from using it. That said — your data is stored locally on your device, and you can export it at any time if you've unlocked that feature.
You can stop using the app and delete it at any time. Your data goes with it.
These terms are governed by the laws of the jurisdiction where Substruct operates.
Questions about these terms? contact@substruct.com