Compare software

Megrim: Migraine Log vs Headi - Your headache diary: catalog facts
Megrim: Migraine Log	Headi - Your headache diary
Free Free and open source under GPL-3.0.	Free Free and open source under the MIT license.
Android, iOS	Android
No accounts, server or telemetry Automatic weather, pressure and astronomical context	Keeps records locally Exports logs as CSV or PDF
Young project with a small user base Correlations are descriptive, not medical advice	Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.