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Megrim: Migraine Log vs Migraine Log: catalog facts
Megrim: Migraine Log	Migraine Log
Free Free and open source under GPL-3.0.	Free Free and open source under the GPL version 3 or later.
Android, iOS	Android, iOS
No accounts, server or telemetry Automatic weather, pressure and astronomical context	Logging an attack needs only a date and a strength No network access, so data stays on the device
Young project with a small user base Correlations are descriptive, not medical advice	Focused only on headaches, not general health tracking No sync between devices
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
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 2, 2026

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